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1 | 1 | ============ |
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2 | 2 | 7.x Series |
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3 | 3 | ============ |
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4 | 4 | |
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5 | 5 | .. _whatsnew730: |
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6 | 6 | |
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7 | 7 | IPython 7.3.0 |
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8 | 8 | ============= |
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9 | 9 | |
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10 | 10 | .. _whatsnew720: |
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11 | 11 | |
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12 | 12 | IPython 7.3.0 bring several bug fixes and small improvements that you will |
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13 | 13 | described bellow. |
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14 | 14 | |
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15 | 15 | The biggest change to this release is the implementation of the ``%conda`` and |
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16 | 16 | ``%pip`` magics, that will attempt to install packages in the **current |
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17 | 17 | environment**. You may still need to restart your interpreter or kernel for the |
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18 | 18 | change to be taken into account, but it should simplify installation of packages |
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19 | 19 | into remote environment. Installing using pip/conda from the command line is |
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20 | 20 | still the prefer method. |
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21 | 21 | |
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22 | 22 | The ``%pip`` magic was already present, but was only printing a warning; now it |
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23 | 23 | will actually forward commands to pip. |
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24 | 24 | |
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25 | 25 | Misc bug fixes and improvements: |
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26 | 26 | |
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27 | - Compatibility with Python 3.8. | |
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27 | 28 | - Do not expand shell variable in execution magics, and added the |
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28 | 29 | ``no_var_expand`` decorator for magic requiring a similar functionality |
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29 | 30 | :ghpull:`11516` |
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30 | 31 | - Add ``%pip`` and ``%conda`` magic :ghpull:`11524` |
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31 | 32 | - Re-initialize posix aliases after a ``%reset`` :ghpull:`11528` |
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32 | 33 | - Allow the IPython command line to run ``*.ipynb`` files :ghpull:`11529` |
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33 | 34 | |
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34 | 35 | IPython 7.2.0 |
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35 | 36 | ============= |
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36 | 37 | |
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37 | 38 | IPython 7.2.0 brings minor bugfixes, improvements, and new configuration options: |
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38 | 39 | |
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39 | 40 | - Fix a bug preventing PySide2 GUI integration from working :ghpull:`11464` |
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40 | 41 | - Run CI on Mac OS ! :ghpull:`11471` |
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41 | 42 | - Fix IPython "Demo" mode. :ghpull:`11498` |
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42 | 43 | - Fix ``%run`` magic with path in name :ghpull:`11499` |
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43 | 44 | - Fix: add CWD to sys.path *after* stdlib :ghpull:`11502` |
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44 | 45 | - Better rendering of signatures, especially long ones. :ghpull:`11505` |
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45 | 46 | - Re-enable jedi by default if it's installed :ghpull:`11506` |
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46 | 47 | - Add New ``minimal`` exception reporting mode (useful for educational purpose). See :ghpull:`11509` |
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47 | 48 | |
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48 | 49 | |
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49 | 50 | Added ability to show subclasses when using pinfo and other utilities |
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50 | 51 | --------------------------------------------------------------------- |
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51 | 52 | |
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52 | 53 | When using ``?``/``??`` on a class, IPython will now list the first 10 subclasses. |
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53 | 54 | |
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54 | 55 | Special Thanks to Chris Mentzel of the Moore Foundation for this feature. Chris |
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55 | 56 | is one of the people who played a critical role in IPython/Jupyter getting |
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56 | 57 | funding. |
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57 | 58 | |
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58 | 59 | We are grateful for all the help Chris has given us over the years, |
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59 | 60 | and we're now proud to have code contributed by Chris in IPython. |
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60 | 61 | |
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61 | 62 | OSMagics.cd_force_quiet configuration option |
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62 | 63 | -------------------------------------------- |
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63 | 64 | |
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64 | 65 | You can set this option to force the %cd magic to behave as if ``-q`` was passed: |
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65 | 66 | :: |
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66 | 67 | |
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67 | 68 | In [1]: cd / |
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68 | 69 | / |
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69 | 70 | |
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70 | 71 | In [2]: %config OSMagics.cd_force_quiet = True |
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71 | 72 | |
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72 | 73 | In [3]: cd /tmp |
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73 | 74 | |
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74 | 75 | In [4]: |
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75 | 76 | |
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76 | 77 | See :ghpull:`11491` |
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77 | 78 | |
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78 | 79 | In vi editing mode, whether the prompt includes the current vi mode can now be configured |
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79 | 80 | ----------------------------------------------------------------------------------------- |
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80 | 81 | |
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81 | 82 | Set the ``TerminalInteractiveShell.prompt_includes_vi_mode`` to a boolean value |
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82 | 83 | (default: True) to control this feature. See :ghpull:`11492` |
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83 | 84 | |
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84 | 85 | .. _whatsnew710: |
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85 | 86 | |
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86 | 87 | IPython 7.1.0 |
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87 | 88 | ============= |
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88 | 89 | |
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89 | 90 | IPython 7.1.0 is the first minor release after 7.0.0 and mostly brings fixes to |
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90 | 91 | new features, internal refactoring, and fixes for regressions that happened during the 6.x->7.x |
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91 | 92 | transition. It also brings **Compatibility with Python 3.7.1**, as we're |
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92 | 93 | unwillingly relying on a bug in CPython. |
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93 | 94 | |
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94 | 95 | New Core Dev: |
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95 | 96 | |
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96 | 97 | - We welcome Jonathan Slenders to the commiters. Jonathan has done a fantastic |
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97 | 98 | work on prompt_toolkit, and we'd like to recognise his impact by giving him |
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98 | 99 | commit rights. :ghissue:`11397` |
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99 | 100 | |
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100 | 101 | Notable Changes |
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101 | 102 | |
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102 | 103 | - Major update of "latex to unicode" tab completion map (see below) |
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103 | 104 | |
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104 | 105 | Notable New Features: |
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105 | 106 | |
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106 | 107 | - Restore functionality and documentation of the **sphinx directive**, which |
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107 | 108 | is now stricter (fail on error by daefault), has new configuration options, |
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108 | 109 | has a brand new documentation page :ref:`ipython_directive` (which needs |
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109 | 110 | some cleanup). It is also now *tested* so we hope to have less regressions. |
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110 | 111 | :ghpull:`11402` |
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111 | 112 | |
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112 | 113 | - ``IPython.display.Video`` now supports ``width`` and ``height`` arguments, |
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113 | 114 | allowing a custom width and height to be set instead of using the video's |
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114 | 115 | width and height. :ghpull:`11353` |
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115 | 116 | |
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116 | 117 | - Warn when using ``HTML('<iframe>')`` instead of ``IFrame`` :ghpull:`11350` |
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117 | 118 | |
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118 | 119 | - Allow Dynamic switching of editing mode between vi/emacs and show |
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119 | 120 | normal/input mode in prompt when using vi. :ghpull:`11390`. Use ``%config |
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120 | 121 | TerminalInteractiveShell.editing_mode = 'vi'`` or ``%config |
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121 | 122 | TerminalInteractiveShell.editing_mode = 'emacs'`` to dynamically switch |
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122 | 123 | between modes. |
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123 | 124 | |
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124 | 125 | |
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125 | 126 | Notable Fixes: |
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126 | 127 | |
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127 | 128 | - Fix entering of **multi-line blocks in terminal** IPython, and various |
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128 | 129 | crashes in the new input transformation machinery :ghpull:`11354`, |
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129 | 130 | :ghpull:`11356`, :ghpull:`11358`. These also fix a **Compatibility bug |
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130 | 131 | with Python 3.7.1**. |
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131 | 132 | |
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132 | 133 | - Fix moving through generator stack in ipdb :ghpull:`11266` |
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133 | 134 | |
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134 | 135 | - %Magic command arguments now support quoting. :ghpull:`11330` |
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135 | 136 | |
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136 | 137 | - Re-add ``rprint`` and ``rprinte`` aliases. :ghpull:`11331` |
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137 | 138 | |
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138 | 139 | - Remove implicit dependency on ``ipython_genutils`` :ghpull:`11317` |
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139 | 140 | |
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140 | 141 | - Make ``nonlocal`` raise ``SyntaxError`` instead of silently failing in async |
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141 | 142 | mode. :ghpull:`11382` |
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142 | 143 | |
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143 | 144 | - Fix mishandling of magics and ``= !`` assignment just after a dedent in |
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144 | 145 | nested code blocks :ghpull:`11418` |
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145 | 146 | |
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146 | 147 | - Fix instructions for custom shortcuts :ghpull:`11426` |
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147 | 148 | |
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148 | 149 | |
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149 | 150 | Notable Internals improvements: |
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150 | 151 | |
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151 | 152 | - Use of ``os.scandir`` (Python 3 only) to speed up some file system operations. |
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152 | 153 | :ghpull:`11365` |
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153 | 154 | |
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154 | 155 | - use ``perf_counter`` instead of ``clock`` for more precise |
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155 | 156 | timing results with ``%time`` :ghpull:`11376` |
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156 | 157 | |
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157 | 158 | Many thanks to all the contributors and in particular to ``bartskowron`` and |
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158 | 159 | ``tonyfast`` who handled some pretty complicated bugs in the input machinery. We |
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159 | 160 | had a number of first time contributors and maybe hacktoberfest participants that |
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160 | 161 | made significant contributions and helped us free some time to focus on more |
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161 | 162 | complicated bugs. |
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162 | 163 | |
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163 | 164 | You |
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164 | 165 | can see all the closed issues and Merged PR, new features and fixes `here |
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165 | 166 | <https://github.com/ipython/ipython/issues?utf8=%E2%9C%93&q=+is%3Aclosed+milestone%3A7.1+>`_. |
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166 | 167 | |
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167 | 168 | Unicode Completion update |
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168 | 169 | ------------------------- |
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169 | 170 | |
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170 | 171 | In IPython 7.1 the Unicode completion map has been updated and synchronized with |
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171 | 172 | the Julia language. |
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172 | 173 | |
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173 | 174 | Added and removed character characters: |
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174 | 175 | |
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175 | 176 | ``\jmath`` (``Θ·``), ``\\underleftrightarrow`` (U+034D, combining) have been |
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176 | 177 | added, while ``\\textasciicaron`` have been removed |
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177 | 178 | |
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178 | 179 | Some sequences have seen their prefix removed: |
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179 | 180 | |
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180 | 181 | - 6 characters ``\text...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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181 | 182 | - 45 characters ``\Elz...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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182 | 183 | - 65 characters ``\B...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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183 | 184 | - 450 characters ``\m...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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184 | 185 | |
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185 | 186 | Some sequences have seen their prefix shortened: |
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186 | 187 | |
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187 | 188 | - 5 characters ``\mitBbb...<tab>`` should now be inputed with ``\bbi...<tab>`` directly, |
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188 | 189 | - 52 characters ``\mit...<tab>`` should now be inputed with ``\i...<tab>`` directly, |
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189 | 190 | - 216 characters ``\mbfit...<tab>`` should now be inputed with ``\bi...<tab>`` directly, |
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190 | 191 | - 222 characters ``\mbf...<tab>`` should now be inputed with ``\b...<tab>`` directly, |
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191 | 192 | |
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192 | 193 | A couple of characters had their sequence simplified: |
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193 | 194 | |
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194 | 195 | - ``Γ°``, type ``\dh<tab>``, instead of ``\eth<tab>`` |
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195 | 196 | - ``Δ§``, type ``\hbar<tab>``, instead of ``\Elzxh<tab>`` |
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196 | 197 | - ``ΙΈ``, type ``\ltphi<tab>``, instead of ``\textphi<tab>`` |
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197 | 198 | - ``Ο΄``, type ``\varTheta<tab>``, instead of ``\textTheta<tab>`` |
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198 | 199 | - ``β``, type ``\eulermascheroni<tab>``, instead of ``\Eulerconst<tab>`` |
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199 | 200 | - ``β``, type ``\planck<tab>``, instead of ``\Planckconst<tab>`` |
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200 | 201 | |
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201 | 202 | - U+0336 (COMBINING LONG STROKE OVERLAY), type ``\strike<tab>``, instead of ``\Elzbar<tab>``. |
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202 | 203 | |
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203 | 204 | A couple of sequences have been updated: |
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204 | 205 | |
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205 | 206 | - ``\varepsilon`` now gives ``Ι`` (GREEK SMALL LETTER EPSILON) instead of ``Ξ΅`` (GREEK LUNATE EPSILON SYMBOL), |
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206 | 207 | - ``\underbar`` now gives U+0331 (COMBINING MACRON BELOW) instead of U+0332 (COMBINING LOW LINE). |
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207 | 208 | |
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208 | 209 | |
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209 | 210 | .. _whatsnew700: |
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210 | 211 | |
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211 | 212 | IPython 7.0.0 |
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212 | 213 | ============= |
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213 | 214 | |
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214 | 215 | Released Thursday September 27th, 2018 |
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215 | 216 | |
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216 | 217 | IPython 7 includes major feature improvements. |
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217 | 218 | This is also the second major version of IPython to support only |
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218 | 219 | Python 3 βΒ starting at Python 3.4. Python 2 is still community-supported |
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219 | 220 | on the bugfix only 5.x branch, but we remind you that Python 2 "end of life" |
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220 | 221 | is on Jan 1st 2020. |
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221 | 222 | |
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222 | 223 | We were able to backport bug fixes to the 5.x branch thanks to our backport bot which |
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223 | 224 | backported more than `70 Pull-Requests |
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224 | 225 | <https://github.com/ipython/ipython/pulls?page=3&q=is%3Apr+sort%3Aupdated-desc+author%3Aapp%2Fmeeseeksdev++5.x&utf8=%E2%9C%93>`_, but there are still many PRs that required manual work. This is an area of the project where you can easily contribute by looking for `PRs that still need manual backport <https://github.com/ipython/ipython/issues?q=label%3A%22Still+Needs+Manual+Backport%22+is%3Aclosed+sort%3Aupdated-desc>`_ |
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225 | 226 | |
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226 | 227 | The IPython 6.x branch will likely not see any further release unless critical |
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227 | 228 | bugs are found. |
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228 | 229 | |
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229 | 230 | Make sure you have pip > 9.0 before upgrading. You should be able to update by running: |
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230 | 231 | |
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231 | 232 | .. code:: |
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232 | 233 | |
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233 | 234 | pip install ipython --upgrade |
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234 | 235 | |
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235 | 236 | .. only:: ipydev |
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236 | 237 | |
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237 | 238 | If you are trying to install or update an ``alpha``, ``beta``, or ``rc`` |
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238 | 239 | version, use pip ``--pre`` flag. |
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239 | 240 | |
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240 | 241 | .. code:: |
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241 | 242 | |
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242 | 243 | pip install ipython --upgrade --pre |
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243 | 244 | |
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244 | 245 | |
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245 | 246 | Or, if you have conda installed: |
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246 | 247 | |
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247 | 248 | .. code:: |
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248 | 249 | |
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249 | 250 | conda install ipython |
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250 | 251 | |
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251 | 252 | |
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252 | 253 | |
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253 | 254 | Prompt Toolkit 2.0 |
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254 | 255 | ------------------ |
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255 | 256 | |
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256 | 257 | IPython 7.0+ now uses ``prompt_toolkit 2.0``. If you still need to use an earlier |
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257 | 258 | ``prompt_toolkit`` version, you may need to pin IPython to ``<7.0``. |
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258 | 259 | |
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259 | 260 | Autowait: Asynchronous REPL |
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260 | 261 | --------------------------- |
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261 | 262 | |
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262 | 263 | Staring with IPython 7.0 on Python 3.6+, IPython can automatically ``await`` |
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263 | 264 | top level code. You should not need to access an event loop or runner |
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264 | 265 | yourself. To learn more, read the :ref:`autoawait` section of our docs, see |
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265 | 266 | :ghpull:`11265`, or try the following code:: |
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266 | 267 | |
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267 | 268 | Python 3.6.0 |
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268 | 269 | Type 'copyright', 'credits' or 'license' for more information |
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269 | 270 | IPython 7.0.0 -- An enhanced Interactive Python. Type '?' for help. |
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270 | 271 | |
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271 | 272 | In [1]: import aiohttp |
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272 | 273 | ...: result = aiohttp.get('https://api.github.com') |
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273 | 274 | |
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274 | 275 | In [2]: response = await result |
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275 | 276 | <pause for a few 100s ms> |
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276 | 277 | |
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277 | 278 | In [3]: await response.json() |
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278 | 279 | Out[3]: |
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279 | 280 | {'authorizations_url': 'https://api.github.com/authorizations', |
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280 | 281 | 'code_search_url': 'https://api.github.com/search/code?q={query}{&page,per_page,sort,order}', |
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281 | 282 | ... |
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282 | 283 | } |
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283 | 284 | |
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284 | 285 | .. note:: |
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285 | 286 | |
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286 | 287 | Async integration is experimental code, behavior may change or be removed |
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287 | 288 | between Python and IPython versions without warnings. |
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288 | 289 | |
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289 | 290 | Integration is by default with `asyncio`, but other libraries can be configured -- |
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290 | 291 | like ``curio`` or ``trio`` -- to improve concurrency in the REPL:: |
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291 | 292 | |
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292 | 293 | In [1]: %autoawait trio |
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293 | 294 | |
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294 | 295 | In [2]: import trio |
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295 | 296 | |
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296 | 297 | In [3]: async def child(i): |
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297 | 298 | ...: print(" child %s goes to sleep"%i) |
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298 | 299 | ...: await trio.sleep(2) |
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299 | 300 | ...: print(" child %s wakes up"%i) |
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300 | 301 | |
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301 | 302 | In [4]: print('parent start') |
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302 | 303 | ...: async with trio.open_nursery() as n: |
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303 | 304 | ...: for i in range(3): |
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304 | 305 | ...: n.spawn(child, i) |
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305 | 306 | ...: print('parent end') |
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306 | 307 | parent start |
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307 | 308 | child 2 goes to sleep |
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308 | 309 | child 0 goes to sleep |
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309 | 310 | child 1 goes to sleep |
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310 | 311 | <about 2 seconds pause> |
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311 | 312 | child 2 wakes up |
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312 | 313 | child 1 wakes up |
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313 | 314 | child 0 wakes up |
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314 | 315 | parent end |
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315 | 316 | |
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316 | 317 | See :ref:`autoawait` for more information. |
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317 | 318 | |
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318 | 319 | |
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319 | 320 | Asynchronous code in a Notebook interface or any other frontend using the |
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320 | 321 | Jupyter Protocol will require further updates to the IPykernel package. |
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321 | 322 | |
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322 | 323 | Non-Asynchronous code |
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323 | 324 | ~~~~~~~~~~~~~~~~~~~~~ |
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324 | 325 | |
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325 | 326 | As the internal API of IPython is now asynchronous, IPython needs to run under |
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326 | 327 | an event loop. In order to allow many workflows, (like using the :magic:`%run` |
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327 | 328 | magic, or copy-pasting code that explicitly starts/stop event loop), when |
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328 | 329 | top-level code is detected as not being asynchronous, IPython code is advanced |
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329 | 330 | via a pseudo-synchronous runner, and may not advance pending tasks. |
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330 | 331 | |
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331 | 332 | Change to Nested Embed |
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332 | 333 | ~~~~~~~~~~~~~~~~~~~~~~ |
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333 | 334 | |
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334 | 335 | The introduction of the ability to run async code had some effect on the |
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335 | 336 | ``IPython.embed()`` API. By default, embed will not allow you to run asynchronous |
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336 | 337 | code unless an event loop is specified. |
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337 | 338 | |
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338 | 339 | Effects on Magics |
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339 | 340 | ~~~~~~~~~~~~~~~~~ |
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340 | 341 | |
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341 | 342 | Some magics will not work with async until they're updated. |
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342 | 343 | Contributions welcome. |
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343 | 344 | |
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344 | 345 | Expected Future changes |
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345 | 346 | ~~~~~~~~~~~~~~~~~~~~~~~ |
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346 | 347 | |
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347 | 348 | We expect more internal but public IPython functions to become ``async``, and |
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348 | 349 | will likely end up having a persistent event loop while IPython is running. |
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349 | 350 | |
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350 | 351 | Thanks |
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351 | 352 | ~~~~~~ |
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352 | 353 | |
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353 | 354 | This release took more than a year in the making. |
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354 | 355 | The code was rebased a number of |
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355 | 356 | times; leading to commit authorship that may have been lost in the final |
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356 | 357 | Pull-Request. Huge thanks to many people for contribution, discussion, code, |
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357 | 358 | documentation, use-cases: dalejung, danielballan, ellisonbg, fperez, gnestor, |
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358 | 359 | minrk, njsmith, pganssle, tacaswell, takluyver , vidartf ... And many others. |
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359 | 360 | |
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360 | 361 | |
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361 | 362 | Autoreload Improvement |
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362 | 363 | ---------------------- |
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363 | 364 | |
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364 | 365 | The magic :magic:`%autoreload 2 <autoreload>` now captures new methods added to |
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365 | 366 | classes. Earlier, only methods existing as of the initial import were being |
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366 | 367 | tracked and updated. |
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367 | 368 | |
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368 | 369 | This new feature helps dual environment development - Jupyter+IDE - where the |
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369 | 370 | code gradually moves from notebook cells to package files as it gets |
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370 | 371 | structured. |
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371 | 372 | |
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372 | 373 | **Example**: An instance of the class ``MyClass`` will be able to access the |
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373 | 374 | method ``cube()`` after it is uncommented and the file ``file1.py`` is saved on |
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374 | 375 | disk. |
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375 | 376 | |
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376 | 377 | |
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377 | 378 | .. code:: |
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378 | 379 | |
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379 | 380 | # notebook |
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380 | 381 | |
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381 | 382 | from mymodule import MyClass |
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382 | 383 | first = MyClass(5) |
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383 | 384 | |
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384 | 385 | .. code:: |
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385 | 386 | |
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386 | 387 | # mymodule/file1.py |
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387 | 388 | |
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388 | 389 | class MyClass: |
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389 | 390 | |
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390 | 391 | def __init__(self, a=10): |
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391 | 392 | self.a = a |
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392 | 393 | |
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393 | 394 | def square(self): |
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394 | 395 | print('compute square') |
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395 | 396 | return self.a*self.a |
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396 | 397 | |
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397 | 398 | # def cube(self): |
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398 | 399 | # print('compute cube') |
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399 | 400 | # return self.a*self.a*self.a |
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400 | 401 | |
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401 | 402 | |
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402 | 403 | |
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403 | 404 | |
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404 | 405 | Misc |
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405 | 406 | ---- |
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406 | 407 | |
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407 | 408 | The autoindent feature that was deprecated in 5.x was re-enabled and |
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408 | 409 | un-deprecated in :ghpull:`11257` |
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409 | 410 | |
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410 | 411 | Make :magic:`%run -n -i ... <run>` work correctly. Earlier, if :magic:`%run` was |
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411 | 412 | passed both arguments, ``-n`` would be silently ignored. See :ghpull:`10308` |
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412 | 413 | |
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413 | 414 | |
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414 | 415 | The :cellmagic:`%%script` (as well as :cellmagic:`%%bash`, |
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415 | 416 | :cellmagic:`%%ruby`... ) cell magics now raise by default if the return code of |
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416 | 417 | the given code is non-zero (thus halting execution of further cells in a |
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417 | 418 | notebook). The behavior can be disable by passing the ``--no-raise-error`` flag. |
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418 | 419 | |
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419 | 420 | |
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420 | 421 | Deprecations |
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421 | 422 | ------------ |
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422 | 423 | |
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423 | 424 | A couple of unused functions and methods have been deprecated and will be removed |
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424 | 425 | in future versions: |
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425 | 426 | |
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426 | 427 | - ``IPython.utils.io.raw_print_err`` |
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427 | 428 | - ``IPython.utils.io.raw_print`` |
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428 | 429 | |
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429 | 430 | |
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430 | 431 | Backwards incompatible changes |
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431 | 432 | ------------------------------ |
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432 | 433 | |
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433 | 434 | * The API for transforming input before it is parsed as Python code has been |
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434 | 435 | completely redesigned: any custom input transformations will need to be |
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435 | 436 | rewritten. See :doc:`/config/inputtransforms` for details of the new API. |
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