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@@ -1,125 +1,122 b'' | |||
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1 | 1 | # encoding: utf-8 |
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2 | 2 | """ |
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3 | 3 | Utilities for working with external processes. |
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4 | 4 | """ |
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5 | 5 | |
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6 | 6 | #----------------------------------------------------------------------------- |
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7 | 7 | # Copyright (C) 2008-2011 The IPython Development Team |
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8 | 8 | # |
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9 | 9 | # Distributed under the terms of the BSD License. The full license is in |
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10 | 10 | # the file COPYING, distributed as part of this software. |
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11 | 11 | #----------------------------------------------------------------------------- |
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12 | 12 | |
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13 | 13 | #----------------------------------------------------------------------------- |
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14 | 14 | # Imports |
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15 | 15 | #----------------------------------------------------------------------------- |
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16 | 16 | from __future__ import print_function |
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17 | 17 | |
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18 | 18 | # Stdlib |
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19 | 19 | import os |
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20 | 20 | import sys |
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21 | 21 | import shlex |
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22 | 22 | |
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23 | 23 | # Our own |
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24 | 24 | if sys.platform == 'win32': |
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25 | 25 | from ._process_win32 import _find_cmd, system, getoutput, AvoidUNCPath, arg_split |
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26 | 26 | else: |
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27 | 27 | from ._process_posix import _find_cmd, system, getoutput, arg_split |
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28 | 28 | |
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29 | 29 | |
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30 | 30 | from ._process_common import getoutputerror |
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31 | 31 | |
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32 | 32 | #----------------------------------------------------------------------------- |
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33 | 33 | # Code |
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34 | 34 | #----------------------------------------------------------------------------- |
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35 | 35 | |
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36 | 36 | |
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37 | 37 | class FindCmdError(Exception): |
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38 | 38 | pass |
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39 | 39 | |
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40 | 40 | |
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41 | 41 | def find_cmd(cmd): |
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42 | 42 | """Find absolute path to executable cmd in a cross platform manner. |
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43 | 43 | |
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44 | 44 | This function tries to determine the full path to a command line program |
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45 | 45 | using `which` on Unix/Linux/OS X and `win32api` on Windows. Most of the |
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46 |
time it will use the version that is first on the users `PATH`. |
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47 | cmd is `python` return `sys.executable`. | |
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46 | time it will use the version that is first on the users `PATH`. | |
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48 | 47 | |
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49 | 48 | Warning, don't use this to find IPython command line programs as there |
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50 | 49 | is a risk you will find the wrong one. Instead find those using the |
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51 | 50 | following code and looking for the application itself:: |
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52 | 51 | |
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53 | 52 | from IPython.utils.path import get_ipython_module_path |
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54 | 53 | from IPython.utils.process import pycmd2argv |
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55 | 54 | argv = pycmd2argv(get_ipython_module_path('IPython.frontend.terminal.ipapp')) |
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56 | 55 | |
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57 | 56 | Parameters |
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58 | 57 | ---------- |
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59 | 58 | cmd : str |
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60 | 59 | The command line program to look for. |
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61 | 60 | """ |
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62 | if cmd in ('python', os.path.basename(sys.executable)): | |
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63 | return os.path.abspath(sys.executable) | |
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64 | 61 | try: |
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65 | 62 | path = _find_cmd(cmd).rstrip() |
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66 | 63 | except OSError: |
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67 | 64 | raise FindCmdError('command could not be found: %s' % cmd) |
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68 | 65 | # which returns empty if not found |
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69 | 66 | if path == '': |
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70 | 67 | raise FindCmdError('command could not be found: %s' % cmd) |
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71 | 68 | return os.path.abspath(path) |
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72 | 69 | |
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73 | 70 | |
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74 | 71 | def is_cmd_found(cmd): |
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75 | 72 | """Check whether executable `cmd` exists or not and return a bool.""" |
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76 | 73 | try: |
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77 | 74 | find_cmd(cmd) |
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78 | 75 | return True |
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79 | 76 | except FindCmdError: |
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80 | 77 | return False |
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81 | 78 | |
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82 | 79 | |
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83 | 80 | def pycmd2argv(cmd): |
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84 | 81 | r"""Take the path of a python command and return a list (argv-style). |
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85 | 82 | |
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86 | 83 | This only works on Python based command line programs and will find the |
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87 | 84 | location of the ``python`` executable using ``sys.executable`` to make |
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88 | 85 | sure the right version is used. |
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89 | 86 | |
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90 | 87 | For a given path ``cmd``, this returns [cmd] if cmd's extension is .exe, |
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91 | 88 | .com or .bat, and [, cmd] otherwise. |
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92 | 89 | |
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93 | 90 | Parameters |
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94 | 91 | ---------- |
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95 | 92 | cmd : string |
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96 | 93 | The path of the command. |
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97 | 94 | |
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98 | 95 | Returns |
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99 | 96 | ------- |
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100 | 97 | argv-style list. |
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101 | 98 | """ |
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102 | 99 | ext = os.path.splitext(cmd)[1] |
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103 | 100 | if ext in ['.exe', '.com', '.bat']: |
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104 | 101 | return [cmd] |
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105 | 102 | else: |
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106 | 103 | return [sys.executable, cmd] |
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107 | 104 | |
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108 | 105 | |
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109 | 106 | def abbrev_cwd(): |
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110 | 107 | """ Return abbreviated version of cwd, e.g. d:mydir """ |
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111 | 108 | cwd = os.getcwdu().replace('\\','/') |
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112 | 109 | drivepart = '' |
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113 | 110 | tail = cwd |
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114 | 111 | if sys.platform == 'win32': |
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115 | 112 | if len(cwd) < 4: |
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116 | 113 | return cwd |
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117 | 114 | drivepart,tail = os.path.splitdrive(cwd) |
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118 | 115 | |
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119 | 116 | |
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120 | 117 | parts = tail.split('/') |
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121 | 118 | if len(parts) > 2: |
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122 | 119 | tail = '/'.join(parts[-2:]) |
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123 | 120 | |
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124 | 121 | return (drivepart + ( |
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125 | 122 | cwd == '/' and '/' or tail)) |
@@ -1,138 +1,134 b'' | |||
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1 | 1 | # encoding: utf-8 |
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2 | 2 | """ |
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3 | 3 | Tests for platutils.py |
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4 | 4 | """ |
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5 | 5 | |
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6 | 6 | #----------------------------------------------------------------------------- |
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7 | 7 | # Copyright (C) 2008-2011 The IPython Development Team |
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8 | 8 | # |
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9 | 9 | # Distributed under the terms of the BSD License. The full license is in |
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10 | 10 | # the file COPYING, distributed as part of this software. |
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11 | 11 | #----------------------------------------------------------------------------- |
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12 | 12 | |
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13 | 13 | #----------------------------------------------------------------------------- |
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14 | 14 | # Imports |
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15 | 15 | #----------------------------------------------------------------------------- |
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16 | 16 | |
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17 | 17 | import sys |
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18 | 18 | import os |
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19 | 19 | from unittest import TestCase |
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20 | 20 | |
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21 | 21 | import nose.tools as nt |
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22 | 22 | |
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23 | 23 | from IPython.utils.process import (find_cmd, FindCmdError, arg_split, |
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24 | 24 | system, getoutput, getoutputerror) |
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25 | 25 | from IPython.testing import decorators as dec |
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26 | 26 | from IPython.testing import tools as tt |
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27 | 27 | |
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28 | 28 | python = os.path.basename(sys.executable) |
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29 | 29 | |
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30 | 30 | #----------------------------------------------------------------------------- |
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31 | 31 | # Tests |
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32 | 32 | #----------------------------------------------------------------------------- |
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33 | 33 | |
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34 | def test_find_cmd_python(): | |
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35 | """Make sure we find sys.exectable for python.""" | |
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36 | nt.assert_equal(find_cmd(python), sys.executable) | |
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37 | 34 | |
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38 | ||
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39 | 35 | @dec.skip_win32 |
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40 | 36 | def test_find_cmd_ls(): |
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41 | 37 | """Make sure we can find the full path to ls.""" |
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42 | 38 | path = find_cmd('ls') |
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43 | 39 | nt.assert_true(path.endswith('ls')) |
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44 | 40 | |
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45 | 41 | |
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46 | 42 | def has_pywin32(): |
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47 | 43 | try: |
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48 | 44 | import win32api |
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49 | 45 | except ImportError: |
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50 | 46 | return False |
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51 | 47 | return True |
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52 | 48 | |
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53 | 49 | |
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54 | 50 | @dec.onlyif(has_pywin32, "This test requires win32api to run") |
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55 | 51 | def test_find_cmd_pythonw(): |
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56 | 52 | """Try to find pythonw on Windows.""" |
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57 | 53 | path = find_cmd('pythonw') |
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58 | 54 | nt.assert_true(path.endswith('pythonw.exe')) |
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59 | 55 | |
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60 | 56 | |
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61 | 57 | @dec.onlyif(lambda : sys.platform != 'win32' or has_pywin32(), |
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62 | 58 | "This test runs on posix or in win32 with win32api installed") |
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63 | 59 | def test_find_cmd_fail(): |
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64 | 60 | """Make sure that FindCmdError is raised if we can't find the cmd.""" |
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65 | 61 | nt.assert_raises(FindCmdError,find_cmd,'asdfasdf') |
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66 | 62 | |
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67 | 63 | |
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68 | 64 | @dec.skip_win32 |
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69 | 65 | def test_arg_split(): |
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70 | 66 | """Ensure that argument lines are correctly split like in a shell.""" |
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71 | 67 | tests = [['hi', ['hi']], |
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72 | 68 | [u'hi', [u'hi']], |
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73 | 69 | ['hello there', ['hello', 'there']], |
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74 | 70 | # \u01ce == \N{LATIN SMALL LETTER A WITH CARON} |
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75 | 71 | # Do not use \N because the tests crash with syntax error in |
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76 | 72 | # some cases, for example windows python2.6. |
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77 | 73 | [u'h\u01cello', [u'h\u01cello']], |
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78 | 74 | ['something "with quotes"', ['something', '"with quotes"']], |
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79 | 75 | ] |
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80 | 76 | for argstr, argv in tests: |
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81 | 77 | nt.assert_equal(arg_split(argstr), argv) |
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82 | 78 | |
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83 | 79 | @dec.skip_if_not_win32 |
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84 | 80 | def test_arg_split_win32(): |
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85 | 81 | """Ensure that argument lines are correctly split like in a shell.""" |
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86 | 82 | tests = [['hi', ['hi']], |
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87 | 83 | [u'hi', [u'hi']], |
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88 | 84 | ['hello there', ['hello', 'there']], |
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89 | 85 | [u'h\u01cello', [u'h\u01cello']], |
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90 | 86 | ['something "with quotes"', ['something', 'with quotes']], |
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91 | 87 | ] |
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92 | 88 | for argstr, argv in tests: |
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93 | 89 | nt.assert_equal(arg_split(argstr), argv) |
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94 | 90 | |
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95 | 91 | |
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96 | 92 | class SubProcessTestCase(TestCase, tt.TempFileMixin): |
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97 | 93 | def setUp(self): |
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98 | 94 | """Make a valid python temp file.""" |
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99 | 95 | lines = ["from __future__ import print_function", |
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100 | 96 | "import sys", |
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101 | 97 | "print('on stdout', end='', file=sys.stdout)", |
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102 | 98 | "print('on stderr', end='', file=sys.stderr)", |
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103 | 99 | "sys.stdout.flush()", |
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104 | 100 | "sys.stderr.flush()"] |
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105 | 101 | self.mktmp('\n'.join(lines)) |
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106 | 102 | |
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107 | 103 | def test_system(self): |
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108 | 104 | status = system('%s "%s"' % (python, self.fname)) |
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109 | 105 | self.assertEqual(status, 0) |
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110 | 106 | |
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111 | 107 | def test_system_quotes(self): |
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112 | 108 | status = system('%s -c "import sys"' % python) |
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113 | 109 | self.assertEqual(status, 0) |
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114 | 110 | |
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115 | 111 | def test_getoutput(self): |
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116 | 112 | out = getoutput('%s "%s"' % (python, self.fname)) |
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117 | 113 | # we can't rely on the order the line buffered streams are flushed |
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118 | 114 | try: |
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119 | 115 | self.assertEqual(out, 'on stderron stdout') |
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120 | 116 | except AssertionError: |
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121 | 117 | self.assertEqual(out, 'on stdouton stderr') |
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122 | 118 | |
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123 | 119 | def test_getoutput_quoted(self): |
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124 | 120 | out = getoutput('%s -c "print (1)"' % python) |
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125 | 121 | self.assertEqual(out.strip(), '1') |
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126 | 122 | |
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127 | 123 | #Invalid quoting on windows |
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128 | 124 | @dec.skip_win32 |
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129 | 125 | def test_getoutput_quoted2(self): |
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130 | 126 | out = getoutput("%s -c 'print (1)'" % python) |
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131 | 127 | self.assertEqual(out.strip(), '1') |
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132 | 128 | out = getoutput("%s -c 'print (\"1\")'" % python) |
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133 | 129 | self.assertEqual(out.strip(), '1') |
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134 | 130 | |
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135 | 131 | def test_getoutput_error(self): |
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136 | 132 | out, err = getoutputerror('%s "%s"' % (python, self.fname)) |
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137 | 133 | self.assertEqual(out, 'on stdout') |
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138 | 134 | self.assertEqual(err, 'on stderr') |
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