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@@ -1,693 +1,693 b'' | |||
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1 | 1 | """IPython terminal interface using prompt_toolkit""" |
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2 | 2 | |
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3 | 3 | import asyncio |
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4 | 4 | import os |
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5 | 5 | import sys |
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6 | 6 | import warnings |
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7 | 7 | from warnings import warn |
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8 | 8 | |
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9 | 9 | from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC |
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10 | 10 | from IPython.utils import io |
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11 | 11 | from IPython.utils.py3compat import input |
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12 | 12 | from IPython.utils.terminal import toggle_set_term_title, set_term_title, restore_term_title |
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13 | 13 | from IPython.utils.process import abbrev_cwd |
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14 | 14 | from traitlets import ( |
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15 | 15 | Bool, |
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16 | 16 | Unicode, |
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17 | 17 | Dict, |
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18 | 18 | Integer, |
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19 | 19 | observe, |
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20 | 20 | Instance, |
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21 | 21 | Type, |
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22 | 22 | default, |
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23 | 23 | Enum, |
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24 | 24 | Union, |
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25 | 25 | Any, |
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26 | 26 | validate, |
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27 | 27 | Float, |
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28 | 28 | ) |
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29 | 29 | |
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30 | 30 | from prompt_toolkit.auto_suggest import AutoSuggestFromHistory |
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31 | 31 | from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode |
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32 | 32 | from prompt_toolkit.filters import (HasFocus, Condition, IsDone) |
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33 | 33 | from prompt_toolkit.formatted_text import PygmentsTokens |
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34 | 34 | from prompt_toolkit.history import InMemoryHistory |
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35 | 35 | from prompt_toolkit.layout.processors import ConditionalProcessor, HighlightMatchingBracketProcessor |
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36 | 36 | from prompt_toolkit.output import ColorDepth |
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37 | 37 | from prompt_toolkit.patch_stdout import patch_stdout |
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38 | 38 | from prompt_toolkit.shortcuts import PromptSession, CompleteStyle, print_formatted_text |
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39 | 39 | from prompt_toolkit.styles import DynamicStyle, merge_styles |
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40 | 40 | from prompt_toolkit.styles.pygments import style_from_pygments_cls, style_from_pygments_dict |
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41 | 41 | from prompt_toolkit import __version__ as ptk_version |
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42 | 42 | |
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43 | 43 | from pygments.styles import get_style_by_name |
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44 | 44 | from pygments.style import Style |
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45 | 45 | from pygments.token import Token |
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46 | 46 | |
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47 | 47 | from .debugger import TerminalPdb, Pdb |
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48 | 48 | from .magics import TerminalMagics |
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49 | 49 | from .pt_inputhooks import get_inputhook_name_and_func |
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50 | 50 | from .prompts import Prompts, ClassicPrompts, RichPromptDisplayHook |
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51 | 51 | from .ptutils import IPythonPTCompleter, IPythonPTLexer |
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52 | 52 | from .shortcuts import create_ipython_shortcuts |
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53 | 53 | |
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54 | 54 | DISPLAY_BANNER_DEPRECATED = object() |
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55 | 55 | PTK3 = ptk_version.startswith('3.') |
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56 | 56 | |
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57 | 57 | |
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58 | 58 | class _NoStyle(Style): pass |
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59 | 59 | |
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60 | 60 | |
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61 | 61 | |
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62 | 62 | _style_overrides_light_bg = { |
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63 | 63 | Token.Prompt: '#ansibrightblue', |
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64 | 64 | Token.PromptNum: '#ansiblue bold', |
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65 | 65 | Token.OutPrompt: '#ansibrightred', |
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66 | 66 | Token.OutPromptNum: '#ansired bold', |
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67 | 67 | } |
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68 | 68 | |
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69 | 69 | _style_overrides_linux = { |
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70 | 70 | Token.Prompt: '#ansibrightgreen', |
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71 | 71 | Token.PromptNum: '#ansigreen bold', |
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72 | 72 | Token.OutPrompt: '#ansibrightred', |
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73 | 73 | Token.OutPromptNum: '#ansired bold', |
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74 | 74 | } |
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75 | 75 | |
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76 | 76 | def get_default_editor(): |
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77 | 77 | try: |
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78 | 78 | return os.environ['EDITOR'] |
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79 | 79 | except KeyError: |
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80 | 80 | pass |
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81 | 81 | except UnicodeError: |
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82 | 82 | warn("$EDITOR environment variable is not pure ASCII. Using platform " |
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83 | 83 | "default editor.") |
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84 | 84 | |
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85 | 85 | if os.name == 'posix': |
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86 | 86 | return 'vi' # the only one guaranteed to be there! |
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87 | 87 | else: |
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88 | 88 | return 'notepad' # same in Windows! |
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89 | 89 | |
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90 | 90 | # conservatively check for tty |
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91 | 91 | # overridden streams can result in things like: |
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92 | 92 | # - sys.stdin = None |
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93 | 93 | # - no isatty method |
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94 | 94 | for _name in ('stdin', 'stdout', 'stderr'): |
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95 | 95 | _stream = getattr(sys, _name) |
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96 | 96 | if not _stream or not hasattr(_stream, 'isatty') or not _stream.isatty(): |
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97 | 97 | _is_tty = False |
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98 | 98 | break |
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99 | 99 | else: |
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100 | 100 | _is_tty = True |
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101 | 101 | |
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102 | 102 | |
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103 | 103 | _use_simple_prompt = ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or (not _is_tty) |
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104 | 104 | |
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105 | 105 | def black_reformat_handler(text_before_cursor): |
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106 | 106 | import black |
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107 | 107 | formatted_text = black.format_str(text_before_cursor, mode=black.FileMode()) |
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108 | 108 | if not text_before_cursor.endswith('\n') and formatted_text.endswith('\n'): |
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109 | 109 | formatted_text = formatted_text[:-1] |
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110 | 110 | return formatted_text |
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111 | 111 | |
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112 | 112 | |
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113 | 113 | class TerminalInteractiveShell(InteractiveShell): |
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114 | 114 | mime_renderers = Dict().tag(config=True) |
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115 | 115 | |
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116 | 116 | space_for_menu = Integer(6, help='Number of line at the bottom of the screen ' |
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117 | 117 | 'to reserve for the tab completion menu, ' |
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118 | 118 | 'search history, ...etc, the height of ' |
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119 | 119 | 'these menus will at most this value. ' |
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120 | 120 | 'Increase it is you prefer long and skinny ' |
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121 | 121 | 'menus, decrease for short and wide.' |
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122 | 122 | ).tag(config=True) |
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123 | 123 | |
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124 | 124 | pt_app = None |
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125 | 125 | debugger_history = None |
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126 | 126 | |
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127 | 127 | simple_prompt = Bool(_use_simple_prompt, |
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128 | 128 | help="""Use `raw_input` for the REPL, without completion and prompt colors. |
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129 | 129 | |
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130 | 130 | Useful when controlling IPython as a subprocess, and piping STDIN/OUT/ERR. Known usage are: |
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131 | 131 | IPython own testing machinery, and emacs inferior-shell integration through elpy. |
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132 | 132 | |
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133 | 133 | This mode default to `True` if the `IPY_TEST_SIMPLE_PROMPT` |
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134 | 134 | environment variable is set, or the current terminal is not a tty.""" |
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135 | 135 | ).tag(config=True) |
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136 | 136 | |
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137 | 137 | @property |
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138 | 138 | def debugger_cls(self): |
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139 | 139 | return Pdb if self.simple_prompt else TerminalPdb |
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140 | 140 | |
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141 | 141 | confirm_exit = Bool(True, |
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142 | 142 | help=""" |
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143 | 143 | Set to confirm when you try to exit IPython with an EOF (Control-D |
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144 | 144 | in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit', |
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145 | 145 | you can force a direct exit without any confirmation.""", |
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146 | 146 | ).tag(config=True) |
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147 | 147 | |
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148 | 148 | editing_mode = Unicode('emacs', |
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149 | 149 | help="Shortcut style to use at the prompt. 'vi' or 'emacs'.", |
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150 | 150 | ).tag(config=True) |
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151 | 151 | |
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152 | 152 | emacs_bindings_in_vi_insert_mode = Bool( |
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153 | 153 | True, |
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154 | 154 | help="Add shortcuts from 'emacs' insert mode to 'vi' insert mode.", |
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155 | 155 | ).tag(config=True) |
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156 | 156 | |
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157 | 157 | modal_cursor = Bool( |
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158 | 158 | True, |
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159 | 159 | help=""" |
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160 | 160 | Cursor shape changes depending on vi mode: beam in vi insert mode, |
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161 | 161 | block in nav mode, underscore in replace mode.""", |
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162 | 162 | ).tag(config=True) |
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163 | 163 | |
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164 | 164 | ttimeoutlen = Float( |
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165 | 165 | 0.01, |
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166 | 166 | help="""The time in milliseconds that is waited for a key code |
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167 | 167 | to complete.""", |
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168 | 168 | ).tag(config=True) |
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169 | 169 | |
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170 | 170 | timeoutlen = Float( |
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171 | 171 | 0.5, |
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172 | 172 | help="""The time in milliseconds that is waited for a mapped key |
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173 | 173 | sequence to complete.""", |
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174 | 174 | ).tag(config=True) |
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175 | 175 | |
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176 | 176 | autoformatter = Unicode(None, |
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177 | 177 | help="Autoformatter to reformat Terminal code. Can be `'black'` or `None`", |
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178 | 178 | allow_none=True |
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179 | 179 | ).tag(config=True) |
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180 | 180 | |
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181 | 181 | mouse_support = Bool(False, |
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182 | 182 | help="Enable mouse support in the prompt\n(Note: prevents selecting text with the mouse)" |
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183 | 183 | ).tag(config=True) |
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184 | 184 | |
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185 | 185 | # We don't load the list of styles for the help string, because loading |
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186 | 186 | # Pygments plugins takes time and can cause unexpected errors. |
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187 | 187 | highlighting_style = Union([Unicode('legacy'), Type(klass=Style)], |
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188 | 188 | help="""The name or class of a Pygments style to use for syntax |
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189 | 189 | highlighting. To see available styles, run `pygmentize -L styles`.""" |
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190 | 190 | ).tag(config=True) |
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191 | 191 | |
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192 | 192 | @validate('editing_mode') |
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193 | 193 | def _validate_editing_mode(self, proposal): |
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194 | 194 | if proposal['value'].lower() == 'vim': |
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195 | 195 | proposal['value']= 'vi' |
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196 | 196 | elif proposal['value'].lower() == 'default': |
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197 | 197 | proposal['value']= 'emacs' |
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198 | 198 | |
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199 | 199 | if hasattr(EditingMode, proposal['value'].upper()): |
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200 | 200 | return proposal['value'].lower() |
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201 | 201 | |
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202 | 202 | return self.editing_mode |
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203 | 203 | |
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204 | 204 | |
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205 | 205 | @observe('editing_mode') |
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206 |
def _editing_mode |
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206 | def _editing_mode(self, change): | |
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207 | 207 | u_mode = change.new.upper() |
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208 | 208 | if self.pt_app: |
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209 | 209 | self.pt_app.editing_mode = getattr(EditingMode, u_mode) |
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210 | 210 | |
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211 | 211 | @observe('autoformatter') |
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212 | 212 | def _autoformatter_changed(self, change): |
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213 | 213 | formatter = change.new |
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214 | 214 | if formatter is None: |
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215 | 215 | self.reformat_handler = lambda x:x |
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216 | 216 | elif formatter == 'black': |
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217 | 217 | self.reformat_handler = black_reformat_handler |
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218 | 218 | else: |
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219 | 219 | raise ValueError |
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220 | 220 | |
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221 | 221 | @observe('highlighting_style') |
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222 | 222 | @observe('colors') |
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223 | 223 | def _highlighting_style_changed(self, change): |
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224 | 224 | self.refresh_style() |
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225 | 225 | |
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226 | 226 | def refresh_style(self): |
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227 | 227 | self._style = self._make_style_from_name_or_cls(self.highlighting_style) |
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228 | 228 | |
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229 | 229 | |
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230 | 230 | highlighting_style_overrides = Dict( |
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231 | 231 | help="Override highlighting format for specific tokens" |
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232 | 232 | ).tag(config=True) |
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233 | 233 | |
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234 | 234 | true_color = Bool(False, |
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235 | 235 | help="""Use 24bit colors instead of 256 colors in prompt highlighting. |
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236 | 236 | If your terminal supports true color, the following command should |
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237 | 237 | print ``TRUECOLOR`` in orange:: |
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238 | 238 | |
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239 | 239 | printf \"\\x1b[38;2;255;100;0mTRUECOLOR\\x1b[0m\\n\" |
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240 | 240 | """, |
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241 | 241 | ).tag(config=True) |
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242 | 242 | |
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243 | 243 | editor = Unicode(get_default_editor(), |
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244 | 244 | help="Set the editor used by IPython (default to $EDITOR/vi/notepad)." |
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245 | 245 | ).tag(config=True) |
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246 | 246 | |
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247 | 247 | prompts_class = Type(Prompts, help='Class used to generate Prompt token for prompt_toolkit').tag(config=True) |
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248 | 248 | |
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249 | 249 | prompts = Instance(Prompts) |
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250 | 250 | |
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251 | 251 | @default('prompts') |
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252 | 252 | def _prompts_default(self): |
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253 | 253 | return self.prompts_class(self) |
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254 | 254 | |
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255 | 255 | # @observe('prompts') |
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256 | 256 | # def _(self, change): |
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257 | 257 | # self._update_layout() |
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258 | 258 | |
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259 | 259 | @default('displayhook_class') |
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260 | 260 | def _displayhook_class_default(self): |
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261 | 261 | return RichPromptDisplayHook |
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262 | 262 | |
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263 | 263 | term_title = Bool(True, |
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264 | 264 | help="Automatically set the terminal title" |
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265 | 265 | ).tag(config=True) |
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266 | 266 | |
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267 | 267 | term_title_format = Unicode("IPython: {cwd}", |
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268 | 268 | help="Customize the terminal title format. This is a python format string. " + |
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269 | 269 | "Available substitutions are: {cwd}." |
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270 | 270 | ).tag(config=True) |
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271 | 271 | |
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272 | 272 | display_completions = Enum(('column', 'multicolumn','readlinelike'), |
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273 | 273 | help= ( "Options for displaying tab completions, 'column', 'multicolumn', and " |
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274 | 274 | "'readlinelike'. These options are for `prompt_toolkit`, see " |
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275 | 275 | "`prompt_toolkit` documentation for more information." |
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276 | 276 | ), |
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277 | 277 | default_value='multicolumn').tag(config=True) |
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278 | 278 | |
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279 | 279 | highlight_matching_brackets = Bool(True, |
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280 | 280 | help="Highlight matching brackets.", |
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281 | 281 | ).tag(config=True) |
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282 | 282 | |
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283 | 283 | extra_open_editor_shortcuts = Bool(False, |
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284 | 284 | help="Enable vi (v) or Emacs (C-X C-E) shortcuts to open an external editor. " |
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285 | 285 | "This is in addition to the F2 binding, which is always enabled." |
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286 | 286 | ).tag(config=True) |
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287 | 287 | |
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288 | 288 | handle_return = Any(None, |
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289 | 289 | help="Provide an alternative handler to be called when the user presses " |
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290 | 290 | "Return. This is an advanced option intended for debugging, which " |
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291 | 291 | "may be changed or removed in later releases." |
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292 | 292 | ).tag(config=True) |
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293 | 293 | |
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294 | 294 | enable_history_search = Bool(True, |
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295 | 295 | help="Allows to enable/disable the prompt toolkit history search" |
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296 | 296 | ).tag(config=True) |
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297 | 297 | |
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298 | 298 | prompt_includes_vi_mode = Bool(True, |
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299 | 299 | help="Display the current vi mode (when using vi editing mode)." |
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300 | 300 | ).tag(config=True) |
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301 | 301 | |
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302 | 302 | @observe('term_title') |
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303 | 303 | def init_term_title(self, change=None): |
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304 | 304 | # Enable or disable the terminal title. |
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305 | 305 | if self.term_title: |
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306 | 306 | toggle_set_term_title(True) |
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307 | 307 | set_term_title(self.term_title_format.format(cwd=abbrev_cwd())) |
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308 | 308 | else: |
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309 | 309 | toggle_set_term_title(False) |
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310 | 310 | |
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311 | 311 | def restore_term_title(self): |
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312 | 312 | if self.term_title: |
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313 | 313 | restore_term_title() |
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314 | 314 | |
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315 | 315 | def init_display_formatter(self): |
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316 | 316 | super(TerminalInteractiveShell, self).init_display_formatter() |
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317 | 317 | # terminal only supports plain text |
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318 | 318 | self.display_formatter.active_types = ['text/plain'] |
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319 | 319 | # disable `_ipython_display_` |
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320 | 320 | self.display_formatter.ipython_display_formatter.enabled = False |
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321 | 321 | |
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322 | 322 | def init_prompt_toolkit_cli(self): |
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323 | 323 | if self.simple_prompt: |
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324 | 324 | # Fall back to plain non-interactive output for tests. |
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325 | 325 | # This is very limited. |
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326 | 326 | def prompt(): |
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327 | 327 | prompt_text = "".join(x[1] for x in self.prompts.in_prompt_tokens()) |
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328 | 328 | lines = [input(prompt_text)] |
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329 | 329 | prompt_continuation = "".join(x[1] for x in self.prompts.continuation_prompt_tokens()) |
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330 | 330 | while self.check_complete('\n'.join(lines))[0] == 'incomplete': |
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331 | 331 | lines.append( input(prompt_continuation) ) |
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332 | 332 | return '\n'.join(lines) |
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333 | 333 | self.prompt_for_code = prompt |
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334 | 334 | return |
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335 | 335 | |
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336 | 336 | # Set up keyboard shortcuts |
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337 | 337 | key_bindings = create_ipython_shortcuts(self) |
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338 | 338 | |
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339 | 339 | # Pre-populate history from IPython's history database |
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340 | 340 | history = InMemoryHistory() |
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341 | 341 | last_cell = u"" |
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342 | 342 | for __, ___, cell in self.history_manager.get_tail(self.history_load_length, |
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343 | 343 | include_latest=True): |
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344 | 344 | # Ignore blank lines and consecutive duplicates |
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345 | 345 | cell = cell.rstrip() |
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346 | 346 | if cell and (cell != last_cell): |
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347 | 347 | history.append_string(cell) |
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348 | 348 | last_cell = cell |
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349 | 349 | |
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350 | 350 | self._style = self._make_style_from_name_or_cls(self.highlighting_style) |
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351 | 351 | self.style = DynamicStyle(lambda: self._style) |
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352 | 352 | |
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353 | 353 | editing_mode = getattr(EditingMode, self.editing_mode.upper()) |
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354 | 354 | |
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355 | 355 | self.pt_loop = asyncio.new_event_loop() |
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356 | 356 | self.pt_app = PromptSession( |
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357 | 357 | auto_suggest=AutoSuggestFromHistory(), |
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358 | 358 | editing_mode=editing_mode, |
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359 | 359 | key_bindings=key_bindings, |
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360 | 360 | history=history, |
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361 | 361 | completer=IPythonPTCompleter(shell=self), |
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362 | 362 | enable_history_search=self.enable_history_search, |
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363 | 363 | style=self.style, |
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364 | 364 | include_default_pygments_style=False, |
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365 | 365 | mouse_support=self.mouse_support, |
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366 | 366 | enable_open_in_editor=self.extra_open_editor_shortcuts, |
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367 | 367 | color_depth=self.color_depth, |
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368 | 368 | tempfile_suffix=".py", |
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369 | 369 | **self._extra_prompt_options() |
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370 | 370 | ) |
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371 | 371 | |
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372 | 372 | def _make_style_from_name_or_cls(self, name_or_cls): |
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373 | 373 | """ |
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374 | 374 | Small wrapper that make an IPython compatible style from a style name |
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375 | 375 | |
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376 | 376 | We need that to add style for prompt ... etc. |
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377 | 377 | """ |
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378 | 378 | style_overrides = {} |
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379 | 379 | if name_or_cls == 'legacy': |
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380 | 380 | legacy = self.colors.lower() |
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381 | 381 | if legacy == 'linux': |
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382 | 382 | style_cls = get_style_by_name('monokai') |
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383 | 383 | style_overrides = _style_overrides_linux |
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384 | 384 | elif legacy == 'lightbg': |
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385 | 385 | style_overrides = _style_overrides_light_bg |
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386 | 386 | style_cls = get_style_by_name('pastie') |
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387 | 387 | elif legacy == 'neutral': |
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388 | 388 | # The default theme needs to be visible on both a dark background |
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389 | 389 | # and a light background, because we can't tell what the terminal |
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390 | 390 | # looks like. These tweaks to the default theme help with that. |
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391 | 391 | style_cls = get_style_by_name('default') |
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392 | 392 | style_overrides.update({ |
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393 | 393 | Token.Number: '#ansigreen', |
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394 | 394 | Token.Operator: 'noinherit', |
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395 | 395 | Token.String: '#ansiyellow', |
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396 | 396 | Token.Name.Function: '#ansiblue', |
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397 | 397 | Token.Name.Class: 'bold #ansiblue', |
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398 | 398 | Token.Name.Namespace: 'bold #ansiblue', |
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399 | 399 | Token.Name.Variable.Magic: '#ansiblue', |
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400 | 400 | Token.Prompt: '#ansigreen', |
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401 | 401 | Token.PromptNum: '#ansibrightgreen bold', |
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402 | 402 | Token.OutPrompt: '#ansired', |
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403 | 403 | Token.OutPromptNum: '#ansibrightred bold', |
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404 | 404 | }) |
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405 | 405 | |
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406 | 406 | # Hack: Due to limited color support on the Windows console |
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407 | 407 | # the prompt colors will be wrong without this |
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408 | 408 | if os.name == 'nt': |
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409 | 409 | style_overrides.update({ |
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410 | 410 | Token.Prompt: '#ansidarkgreen', |
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411 | 411 | Token.PromptNum: '#ansigreen bold', |
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412 | 412 | Token.OutPrompt: '#ansidarkred', |
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413 | 413 | Token.OutPromptNum: '#ansired bold', |
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414 | 414 | }) |
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415 | 415 | elif legacy =='nocolor': |
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416 | 416 | style_cls=_NoStyle |
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417 | 417 | style_overrides = {} |
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418 | 418 | else : |
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419 | 419 | raise ValueError('Got unknown colors: ', legacy) |
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420 | 420 | else : |
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421 | 421 | if isinstance(name_or_cls, str): |
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422 | 422 | style_cls = get_style_by_name(name_or_cls) |
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423 | 423 | else: |
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424 | 424 | style_cls = name_or_cls |
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425 | 425 | style_overrides = { |
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426 | 426 | Token.Prompt: '#ansigreen', |
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427 | 427 | Token.PromptNum: '#ansibrightgreen bold', |
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428 | 428 | Token.OutPrompt: '#ansired', |
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429 | 429 | Token.OutPromptNum: '#ansibrightred bold', |
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430 | 430 | } |
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431 | 431 | style_overrides.update(self.highlighting_style_overrides) |
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432 | 432 | style = merge_styles([ |
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433 | 433 | style_from_pygments_cls(style_cls), |
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434 | 434 | style_from_pygments_dict(style_overrides), |
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435 | 435 | ]) |
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436 | 436 | |
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437 | 437 | return style |
|
438 | 438 | |
|
439 | 439 | @property |
|
440 | 440 | def pt_complete_style(self): |
|
441 | 441 | return { |
|
442 | 442 | 'multicolumn': CompleteStyle.MULTI_COLUMN, |
|
443 | 443 | 'column': CompleteStyle.COLUMN, |
|
444 | 444 | 'readlinelike': CompleteStyle.READLINE_LIKE, |
|
445 | 445 | }[self.display_completions] |
|
446 | 446 | |
|
447 | 447 | @property |
|
448 | 448 | def color_depth(self): |
|
449 | 449 | return (ColorDepth.TRUE_COLOR if self.true_color else None) |
|
450 | 450 | |
|
451 | 451 | def _extra_prompt_options(self): |
|
452 | 452 | """ |
|
453 | 453 | Return the current layout option for the current Terminal InteractiveShell |
|
454 | 454 | """ |
|
455 | 455 | def get_message(): |
|
456 | 456 | return PygmentsTokens(self.prompts.in_prompt_tokens()) |
|
457 | 457 | |
|
458 | 458 | if self.editing_mode == 'emacs': |
|
459 | 459 | # with emacs mode the prompt is (usually) static, so we call only |
|
460 | 460 | # the function once. With VI mode it can toggle between [ins] and |
|
461 | 461 | # [nor] so we can't precompute. |
|
462 | 462 | # here I'm going to favor the default keybinding which almost |
|
463 | 463 | # everybody uses to decrease CPU usage. |
|
464 | 464 | # if we have issues with users with custom Prompts we can see how to |
|
465 | 465 | # work around this. |
|
466 | 466 | get_message = get_message() |
|
467 | 467 | |
|
468 | 468 | options = { |
|
469 | 469 | 'complete_in_thread': False, |
|
470 | 470 | 'lexer':IPythonPTLexer(), |
|
471 | 471 | 'reserve_space_for_menu':self.space_for_menu, |
|
472 | 472 | 'message': get_message, |
|
473 | 473 | 'prompt_continuation': ( |
|
474 | 474 | lambda width, lineno, is_soft_wrap: |
|
475 | 475 | PygmentsTokens(self.prompts.continuation_prompt_tokens(width))), |
|
476 | 476 | 'multiline': True, |
|
477 | 477 | 'complete_style': self.pt_complete_style, |
|
478 | 478 | |
|
479 | 479 | # Highlight matching brackets, but only when this setting is |
|
480 | 480 | # enabled, and only when the DEFAULT_BUFFER has the focus. |
|
481 | 481 | 'input_processors': [ConditionalProcessor( |
|
482 | 482 | processor=HighlightMatchingBracketProcessor(chars='[](){}'), |
|
483 | 483 | filter=HasFocus(DEFAULT_BUFFER) & ~IsDone() & |
|
484 | 484 | Condition(lambda: self.highlight_matching_brackets))], |
|
485 | 485 | } |
|
486 | 486 | if not PTK3: |
|
487 | 487 | options['inputhook'] = self.inputhook |
|
488 | 488 | |
|
489 | 489 | return options |
|
490 | 490 | |
|
491 | 491 | def prompt_for_code(self): |
|
492 | 492 | if self.rl_next_input: |
|
493 | 493 | default = self.rl_next_input |
|
494 | 494 | self.rl_next_input = None |
|
495 | 495 | else: |
|
496 | 496 | default = '' |
|
497 | 497 | |
|
498 | 498 | # In order to make sure that asyncio code written in the |
|
499 | 499 | # interactive shell doesn't interfere with the prompt, we run the |
|
500 | 500 | # prompt in a different event loop. |
|
501 | 501 | # If we don't do this, people could spawn coroutine with a |
|
502 | 502 | # while/true inside which will freeze the prompt. |
|
503 | 503 | |
|
504 | 504 | try: |
|
505 | 505 | old_loop = asyncio.get_event_loop() |
|
506 | 506 | except RuntimeError: |
|
507 | 507 | # This happens when the user used `asyncio.run()`. |
|
508 | 508 | old_loop = None |
|
509 | 509 | |
|
510 | 510 | asyncio.set_event_loop(self.pt_loop) |
|
511 | 511 | try: |
|
512 | 512 | with patch_stdout(raw=True): |
|
513 | 513 | text = self.pt_app.prompt( |
|
514 | 514 | default=default, |
|
515 | 515 | **self._extra_prompt_options()) |
|
516 | 516 | finally: |
|
517 | 517 | # Restore the original event loop. |
|
518 | 518 | asyncio.set_event_loop(old_loop) |
|
519 | 519 | |
|
520 | 520 | return text |
|
521 | 521 | |
|
522 | 522 | def enable_win_unicode_console(self): |
|
523 | 523 | # Since IPython 7.10 doesn't support python < 3.6 and PEP 528, Python uses the unicode APIs for the Windows |
|
524 | 524 | # console by default, so WUC shouldn't be needed. |
|
525 | 525 | from warnings import warn |
|
526 | 526 | warn("`enable_win_unicode_console` is deprecated since IPython 7.10, does not do anything and will be removed in the future", |
|
527 | 527 | DeprecationWarning, |
|
528 | 528 | stacklevel=2) |
|
529 | 529 | |
|
530 | 530 | def init_io(self): |
|
531 | 531 | if sys.platform not in {'win32', 'cli'}: |
|
532 | 532 | return |
|
533 | 533 | |
|
534 | 534 | import colorama |
|
535 | 535 | colorama.init() |
|
536 | 536 | |
|
537 | 537 | # For some reason we make these wrappers around stdout/stderr. |
|
538 | 538 | # For now, we need to reset them so all output gets coloured. |
|
539 | 539 | # https://github.com/ipython/ipython/issues/8669 |
|
540 | 540 | # io.std* are deprecated, but don't show our own deprecation warnings |
|
541 | 541 | # during initialization of the deprecated API. |
|
542 | 542 | with warnings.catch_warnings(): |
|
543 | 543 | warnings.simplefilter('ignore', DeprecationWarning) |
|
544 | 544 | io.stdout = io.IOStream(sys.stdout) |
|
545 | 545 | io.stderr = io.IOStream(sys.stderr) |
|
546 | 546 | |
|
547 | 547 | def init_magics(self): |
|
548 | 548 | super(TerminalInteractiveShell, self).init_magics() |
|
549 | 549 | self.register_magics(TerminalMagics) |
|
550 | 550 | |
|
551 | 551 | def init_alias(self): |
|
552 | 552 | # The parent class defines aliases that can be safely used with any |
|
553 | 553 | # frontend. |
|
554 | 554 | super(TerminalInteractiveShell, self).init_alias() |
|
555 | 555 | |
|
556 | 556 | # Now define aliases that only make sense on the terminal, because they |
|
557 | 557 | # need direct access to the console in a way that we can't emulate in |
|
558 | 558 | # GUI or web frontend |
|
559 | 559 | if os.name == 'posix': |
|
560 | 560 | for cmd in ('clear', 'more', 'less', 'man'): |
|
561 | 561 | self.alias_manager.soft_define_alias(cmd, cmd) |
|
562 | 562 | |
|
563 | 563 | |
|
564 | 564 | def __init__(self, *args, **kwargs): |
|
565 | 565 | super(TerminalInteractiveShell, self).__init__(*args, **kwargs) |
|
566 | 566 | self.init_prompt_toolkit_cli() |
|
567 | 567 | self.init_term_title() |
|
568 | 568 | self.keep_running = True |
|
569 | 569 | |
|
570 | 570 | self.debugger_history = InMemoryHistory() |
|
571 | 571 | |
|
572 | 572 | def ask_exit(self): |
|
573 | 573 | self.keep_running = False |
|
574 | 574 | |
|
575 | 575 | rl_next_input = None |
|
576 | 576 | |
|
577 | 577 | def interact(self, display_banner=DISPLAY_BANNER_DEPRECATED): |
|
578 | 578 | |
|
579 | 579 | if display_banner is not DISPLAY_BANNER_DEPRECATED: |
|
580 | 580 | warn('interact `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2) |
|
581 | 581 | |
|
582 | 582 | self.keep_running = True |
|
583 | 583 | while self.keep_running: |
|
584 | 584 | print(self.separate_in, end='') |
|
585 | 585 | |
|
586 | 586 | try: |
|
587 | 587 | code = self.prompt_for_code() |
|
588 | 588 | except EOFError: |
|
589 | 589 | if (not self.confirm_exit) \ |
|
590 | 590 | or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'): |
|
591 | 591 | self.ask_exit() |
|
592 | 592 | |
|
593 | 593 | else: |
|
594 | 594 | if code: |
|
595 | 595 | self.run_cell(code, store_history=True) |
|
596 | 596 | |
|
597 | 597 | def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED): |
|
598 | 598 | # An extra layer of protection in case someone mashing Ctrl-C breaks |
|
599 | 599 | # out of our internal code. |
|
600 | 600 | if display_banner is not DISPLAY_BANNER_DEPRECATED: |
|
601 | 601 | warn('mainloop `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2) |
|
602 | 602 | while True: |
|
603 | 603 | try: |
|
604 | 604 | self.interact() |
|
605 | 605 | break |
|
606 | 606 | except KeyboardInterrupt as e: |
|
607 | 607 | print("\n%s escaped interact()\n" % type(e).__name__) |
|
608 | 608 | finally: |
|
609 | 609 | # An interrupt during the eventloop will mess up the |
|
610 | 610 | # internal state of the prompt_toolkit library. |
|
611 | 611 | # Stopping the eventloop fixes this, see |
|
612 | 612 | # https://github.com/ipython/ipython/pull/9867 |
|
613 | 613 | if hasattr(self, '_eventloop'): |
|
614 | 614 | self._eventloop.stop() |
|
615 | 615 | |
|
616 | 616 | self.restore_term_title() |
|
617 | 617 | |
|
618 | 618 | # try to call some at-exit operation optimistically as some things can't |
|
619 | 619 | # be done during interpreter shutdown. this is technically inaccurate as |
|
620 | 620 | # this make mainlool not re-callable, but that should be a rare if not |
|
621 | 621 | # in existent use case. |
|
622 | 622 | |
|
623 | 623 | self._atexit_once() |
|
624 | 624 | |
|
625 | 625 | |
|
626 | 626 | _inputhook = None |
|
627 | 627 | def inputhook(self, context): |
|
628 | 628 | if self._inputhook is not None: |
|
629 | 629 | self._inputhook(context) |
|
630 | 630 | |
|
631 | 631 | active_eventloop = None |
|
632 | 632 | def enable_gui(self, gui=None): |
|
633 | 633 | if gui and (gui != 'inline') : |
|
634 | 634 | self.active_eventloop, self._inputhook =\ |
|
635 | 635 | get_inputhook_name_and_func(gui) |
|
636 | 636 | else: |
|
637 | 637 | self.active_eventloop = self._inputhook = None |
|
638 | 638 | |
|
639 | 639 | # For prompt_toolkit 3.0. We have to create an asyncio event loop with |
|
640 | 640 | # this inputhook. |
|
641 | 641 | if PTK3: |
|
642 | 642 | import asyncio |
|
643 | 643 | from prompt_toolkit.eventloop import new_eventloop_with_inputhook |
|
644 | 644 | |
|
645 | 645 | if gui == 'asyncio': |
|
646 | 646 | # When we integrate the asyncio event loop, run the UI in the |
|
647 | 647 | # same event loop as the rest of the code. don't use an actual |
|
648 | 648 | # input hook. (Asyncio is not made for nesting event loops.) |
|
649 | 649 | self.pt_loop = asyncio.get_event_loop() |
|
650 | 650 | |
|
651 | 651 | elif self._inputhook: |
|
652 | 652 | # If an inputhook was set, create a new asyncio event loop with |
|
653 | 653 | # this inputhook for the prompt. |
|
654 | 654 | self.pt_loop = new_eventloop_with_inputhook(self._inputhook) |
|
655 | 655 | else: |
|
656 | 656 | # When there's no inputhook, run the prompt in a separate |
|
657 | 657 | # asyncio event loop. |
|
658 | 658 | self.pt_loop = asyncio.new_event_loop() |
|
659 | 659 | |
|
660 | 660 | # Run !system commands directly, not through pipes, so terminal programs |
|
661 | 661 | # work correctly. |
|
662 | 662 | system = InteractiveShell.system_raw |
|
663 | 663 | |
|
664 | 664 | def auto_rewrite_input(self, cmd): |
|
665 | 665 | """Overridden from the parent class to use fancy rewriting prompt""" |
|
666 | 666 | if not self.show_rewritten_input: |
|
667 | 667 | return |
|
668 | 668 | |
|
669 | 669 | tokens = self.prompts.rewrite_prompt_tokens() |
|
670 | 670 | if self.pt_app: |
|
671 | 671 | print_formatted_text(PygmentsTokens(tokens), end='', |
|
672 | 672 | style=self.pt_app.app.style) |
|
673 | 673 | print(cmd) |
|
674 | 674 | else: |
|
675 | 675 | prompt = ''.join(s for t, s in tokens) |
|
676 | 676 | print(prompt, cmd, sep='') |
|
677 | 677 | |
|
678 | 678 | _prompts_before = None |
|
679 | 679 | def switch_doctest_mode(self, mode): |
|
680 | 680 | """Switch prompts to classic for %doctest_mode""" |
|
681 | 681 | if mode: |
|
682 | 682 | self._prompts_before = self.prompts |
|
683 | 683 | self.prompts = ClassicPrompts(self) |
|
684 | 684 | elif self._prompts_before: |
|
685 | 685 | self.prompts = self._prompts_before |
|
686 | 686 | self._prompts_before = None |
|
687 | 687 | # self._update_layout() |
|
688 | 688 | |
|
689 | 689 | |
|
690 | 690 | InteractiveShellABC.register(TerminalInteractiveShell) |
|
691 | 691 | |
|
692 | 692 | if __name__ == '__main__': |
|
693 | 693 | TerminalInteractiveShell.instance().interact() |
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