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@@ -7,10 +7,10 b' IPython 6.0' | |||
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7 | 7 | |
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8 | 8 | Released April 19th, 2017 |
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9 | 9 | |
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10 | IPython 6 feature a major improvement in the completion machinery which is now | |
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10 | IPython 6 features a major improvement in the completion machinery which is now | |
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11 | 11 | capable of completing non-executed code. It is also the first version of IPython |
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12 | 12 | to stop compatibility with Python 2, which is still supported on the bugfix only |
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13 |
5.x branch. Read below |
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13 | 5.x branch. Read below for a non-exhaustive list of new features. | |
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14 | 14 | |
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15 | 15 | Make sure you have pip > 9.0 before upgrading. |
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16 | 16 | You should be able to update by using: |
@@ -22,7 +22,7 b' You should be able to update by using:' | |||
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22 | 22 | |
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23 | 23 | .. note:: |
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24 | 24 | |
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25 |
If your pip version is greater |
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25 | If your pip version is greater than or equal to pip 9.0.1 you will automatically get | |
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26 | 26 | the most recent version of IPython compatible with your system: on Python 2 you |
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27 | 27 | will get the latest IPython 5.x bugfix, while in Python 3 |
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28 | 28 | you will get the latest 6.x stable version. |
@@ -30,20 +30,20 b' You should be able to update by using:' | |||
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30 | 30 | New completion API and Interface |
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31 | 31 | -------------------------------- |
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32 | 32 | |
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33 |
The completer Completion API has seen an overhaul, and the new completer ha |
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34 |
plenty of improvement both from the end users of terminal IPython |
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33 | The completer Completion API has seen an overhaul, and the new completer has | |
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34 | plenty of improvements both from the end users of terminal IPython and for | |
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35 | 35 | consumers of the API. |
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36 | 36 | |
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37 | 37 | This new API is capable of pulling completions from :any:`jedi`, thus allowing |
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38 | type inference on non-executed code. If :any:`jedi` is installed completion like | |
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39 |
the following are now |
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38 | type inference on non-executed code. If :any:`jedi` is installed, completions like | |
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39 | the following are now possible without code evaluation: | |
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40 | 40 | |
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41 | 41 | >>> data = ['Number of users', 123_456] |
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42 | 42 | ... data[0].<tab> |
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43 | 43 | |
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44 | 44 | That is to say, IPython is now capable of inferring that `data[0]` is a string, |
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45 | 45 | and will suggest completions like `.capitalize`. The completion power of IPython |
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46 | will increase with new Jedi releases, and a number of bugs and more completions | |
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46 | will increase with new Jedi releases, and a number of bug-fixes and more completions | |
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47 | 47 | are already available on the development version of :any:`jedi` if you are curious. |
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48 | 48 | |
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49 | 49 | With the help of prompt toolkit, types of completions can be shown in the |
@@ -60,36 +60,36 b' The appearance of the completer is controlled by the' | |||
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60 | 60 | type differently depending on the value among ``'column'``, ``'multicolumn'`` |
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61 | 61 | and ``'readlinelike'`` |
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62 | 62 | |
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63 | The use of Jedi also fulfills a number of requests and fix a number of bugs | |
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64 |
like case-insensitive completion |
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63 | The use of Jedi also fulfills a number of requests and fixes a number of bugs | |
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64 | like case-insensitive completion and completion after division operator: See | |
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65 | 65 | :ghpull:`10182`. |
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66 | 66 | |
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67 | 67 | Extra patches and updates will be needed to the :mod:`ipykernel` package for |
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68 | 68 | this feature to be available to other clients like Jupyter Notebook, Lab, |
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69 | 69 | Nteract, Hydrogen... |
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70 | 70 | |
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71 |
The use of Jedi |
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can be slower on older ones. To tweak the performance |
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71 | The use of Jedi should be barely noticeable on recent machines, but | |
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72 | can be slower on older ones. To tweak the performance, the amount | |
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73 | 73 | of time given to Jedi to compute type inference can be adjusted with |
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74 |
``c.IPCompleter.jedi_compute_type_timeout``. The objects whose type w |
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74 | ``c.IPCompleter.jedi_compute_type_timeout``. The objects whose type was not | |
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75 | 75 | inferred will be shown as ``<unknown>``. Jedi can also be completely deactivated |
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76 | 76 | by using the ``c.Completer.use_jedi=False`` option. |
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77 | 77 | |
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78 | 78 | |
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79 | 79 | The old ``Completer.complete()`` API is waiting deprecation and should be |
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80 |
replaced replaced by ``Completer.completions()`` in |
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81 | the current state of the API and suggestions welcome. | |
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80 | replaced replaced by ``Completer.completions()`` in the near future. Feedback on | |
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81 | the current state of the API and suggestions are welcome. | |
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82 | 82 | |
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83 | 83 | Python 3 only codebase |
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84 | 84 | ---------------------- |
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85 | 85 | |
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86 | 86 | One of the large challenges in IPython 6.0 has been the adoption of a pure |
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87 |
Python 3 codebase, which |
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88 | pypi and warehouse to make sure Python 2 system still upgrade to the latest | |
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89 |
compatible Python version |
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87 | Python 3 codebase, which has led to upstream patches in pip, | |
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88 | pypi and warehouse to make sure Python 2 systems still upgrade to the latest | |
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89 | compatible Python version. | |
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90 | 90 | |
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91 | 91 | We remind our Python 2 users that IPython 5 is still compatible with Python 2.7, |
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92 | still maintained and get regular releases. Using pip 9+, upgrading IPython will | |
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92 | still maintained and will get regular releases. Using pip 9+, upgrading IPython will | |
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93 | 93 | automatically upgrade to the latest version compatible with your system. |
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94 | 94 | |
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95 | 95 | .. warning:: |
@@ -99,7 +99,7 b' automatically upgrade to the latest version compatible with your system.' | |||
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99 | 99 | You can fix this by upgrading pip, and reinstalling ipython, or forcing pip to |
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100 | 100 | install an earlier version: ``pip install 'ipython<6'`` |
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101 | 101 | |
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102 |
The ability to use only Python 3 on the code base of IPython |
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102 | The ability to use only Python 3 on the code base of IPython brings a number | |
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103 | 103 | of advantages. Most of the newly written code make use of `optional function type |
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104 | 104 | annotation <https://www.python.org/dev/peps/pep-0484/>`_ leading to clearer code |
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105 | 105 | and better documentation. |
@@ -109,12 +109,12 b' first time excluding the big split for 4.0). The decrease is potentially' | |||
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109 | 109 | a bit more for the sour as some documents like this one are append only and |
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110 | 110 | are about 300 lines long. |
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111 | 111 | |
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112 |
The removal |
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113 | more idiomatic in a number of location, and much friendlier to work with and | |
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understand. We hope to further embrace Python 3 capabilit |
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112 | The removal of the Python2/Python3 shim layer has made the code quite a lot clearer and | |
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113 | more idiomatic in a number of locations, and much friendlier to work with and | |
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114 | understand. We hope to further embrace Python 3 capabilities in the next release | |
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115 | 115 | cycle and introduce more of the Python 3 only idioms (yield from, kwarg only, |
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general unpacking) in the code base |
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117 |
of these |
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116 | general unpacking) in the IPython code base, and see if we can take advantage | |
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117 | of these to improve user experience with better error messages and | |
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118 | 118 | hints. |
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119 | 119 | |
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120 | 120 | |
@@ -130,8 +130,8 b' team. See the project to bring back the readline interface: `rlipython' | |||
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130 | 130 | |
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131 | 131 | This change will be backported to the IPython 5.x series. |
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132 | 132 | |
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133 |
Misc |
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134 |
----------------- |
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133 | Misc improvements | |
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134 | ----------------- | |
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135 | 135 | |
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136 | 136 | |
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137 | 137 | - The :cellmagic:`capture` magic can now capture the result of a cell (from |
@@ -182,7 +182,7 b' development cycle marked for Milestone 6.0.' | |||
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182 | 182 | `reload` into the interactive namespace have been removed. You have to |
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183 | 183 | explicitly import `reload` from `IPython.lib.deepreload` to use it. |
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184 | 184 | |
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185 |
- The :magic:`profile` used to print current IPython profil |
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185 | - The :magic:`profile` used to print the current IPython profile, and which | |
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186 | 186 | was deprecated in IPython 2.0 does now raise a `DeprecationWarning` error when |
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187 |
used. It is often confused with the :magic:`prun` and the deprecation remov |
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187 | used. It is often confused with the :magic:`prun` and the deprecation removal | |
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188 | 188 | should free up the ``profile`` name in future versions. |
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