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1 | 1 | ================================================ |
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2 | 2 | Development version |
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3 | 3 | ================================================ |
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4 | 4 | |
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5 | 5 | The changes listed here are a brief summary of the substantial work on IPython |
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6 | 6 | since the 0.11.x release series. For more details, please consult the actual |
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7 | 7 | source. |
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8 | 8 | |
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9 | 9 | Main `ipython` branch |
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10 | 10 | ===================== |
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11 | 11 | |
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12 | 12 | |
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13 | 13 | New features |
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14 | 14 | ------------ |
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15 | 15 | |
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16 | 16 | .. Expand on this: |
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17 | 17 | * **HTML Notebook**: A powerful new interface puts IPython in your browser. You |
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18 | 18 | can start it with the command ``ipython notebook``. See :ref:`the Notebook |
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19 | 19 | docs <htmlnotebook>` for technical details. |
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20 | 20 | |
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21 | 21 | * **Python 3 compatibility**: IPython can now be installed from a single |
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22 | 22 | codebase on Python 2 and Python 3. The installation process for Python 3 |
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23 | 23 | automatically runs 2to3. Python 3 no longer loads a separate 'python3' |
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24 | 24 | profile by default. It uses the same 'default' profile as in Python 2. |
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25 | 25 | |
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26 | 26 | * **PyPy support**: The terminal interface to IPython now runs under |
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27 | 27 | `PyPy <http://pypy.org/>`_. |
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28 | 28 | |
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29 | 29 | * **Tabbed QtConsole**: The QtConsole now supports starting multiple kernels in |
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30 | 30 | tabs, and has a menubar, so it looks and behaves more like a real application. |
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31 | 31 | Keyboard enthusiasts can disable the menubar with ctrl-shift-M (:ghpull:`887`). |
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32 | 32 | |
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33 | 33 | * **SSH Tunnels**: In 0.11, the :mod:`IPython.parallel` Client could tunnel its |
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34 | 34 | connections to the Controller via ssh. Now, the QtConsole :ref:`supports |
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35 | 35 | <ssh_tunnels>` ssh tunneling, as do parallel engines. |
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36 | 36 | |
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37 | 37 | * **relaxed command-line parsing**: 0.11 was released with overly-strict |
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38 | 38 | command-line parsing, preventing the ability to specify arguments with spaces, |
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39 | 39 | e.g. ``ipython --pylab qt`` or ``ipython -c "print 'hi'"``. This has |
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40 | 40 | been fixed, by using argparse. The new parsing is a strict superset of 0.11, so |
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41 | 41 | any commands in 0.11 should still work in 0.12. |
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42 | 42 | |
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43 | 43 | * **HistoryAccessor**: The :class:`~IPython.core.history.HistoryManager` class for |
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44 | 44 | interacting with your IPython SQLite history database has been split, adding |
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45 | 45 | a parent :class:`~IPython.core.history.HistoryAccessor` class, so that users can |
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46 | 46 | write code to access and search their IPython history without being in an IPython |
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47 | 47 | session (:ghpull:`824`). |
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48 | 48 | |
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49 | 49 | * **kernel %gui and %pylab**: The ``%gui`` and ``%pylab`` magics have been restored |
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50 | 50 | to the IPython kernel (e.g. in the qtconsole or notebook). This allows activation |
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51 | 51 | of pylab-mode, or eventloop integration after starting the kernel, which was |
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52 | 52 | unavailable in 0.11. Unlike in the terminal, this can be set only once, and |
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53 | 53 | cannot be changed. |
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54 | 54 | |
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55 | 55 | * **%config**: A new ``%config`` magic has been added, giving easy access to the |
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56 | 56 | IPython configuration system at runtime (:ghpull:`923`). |
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57 | 57 | |
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58 | 58 | * **Standalone Kernel**: ``ipython kernel`` subcommand has been added, to allow |
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59 | 59 | starting a standalone kernel, that can be used with various frontends. |
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60 | 60 | |
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61 | 61 | * **Multiline History**: Multiline readline history has been restored to the |
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62 | 62 | Terminal frontend by default (:ghpull:`838`). |
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63 | 63 | |
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64 | * **%store**: The ``%store`` magic from earlier versions has been updated and | |
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65 | placed in an extension, 'storemagic'. Add 'storemagic' to ``c.InteractiveShellApp.extensions`` | |
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66 | in ipython_config.py to enable it (:ghpull:`1029`). | |
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67 | ||
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64 | 68 | |
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65 | 69 | |
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66 | 70 | Major Bugs fixed |
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67 | 71 | ---------------- |
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68 | 72 | |
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69 | 73 | * Simple configuration errors should no longer crash IPython. In 0.11, errors in |
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70 | 74 | config files, as well as invalid trait values, could crash IPython. Now, such |
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71 | 75 | errors are reported, and help is displayed. |
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72 | 76 | |
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73 | 77 | * Certain SyntaxErrors no longer crash IPython (e.g. just typing keywords, such as |
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74 | 78 | ``return``, ``break``, etc.). See :ghissue:`704`. |
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75 | 79 | |
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76 | 80 | * IPython path utils, such as :func:`~IPython.utils.path.get_ipython_dir` now check |
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77 | 81 | for write permissions, so IPython should function on systems where the default |
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78 | 82 | path resolution might point to a read-only location, such as ``HOMESHARE`` on |
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79 | 83 | Windows (:ghissue:`669`). |
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80 | 84 | |
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81 | 85 | * :func:`raw_input` now works in the kernel when multiple frontends are in use. The |
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82 | 86 | request will be sent to the frontend that made the request, and an exception is |
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83 | 87 | raised if that frontend does not support stdin requests (e.g. the notebook) |
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84 | 88 | (:ghissue:`673`). |
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85 | 89 | |
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86 | 90 | * :mod:`zmq` version detection no longer uses simple lexicographical comparison to |
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87 | 91 | check minimum version, which prevents 0.11 from working with pyzmq-2.1.10 |
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88 | 92 | (:ghpull:`758`). |
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89 | 93 | |
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90 | 94 | * A bug in PySide < 1.0.7 caused crashes on OSX when tooltips were shown |
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91 | 95 | (:ghissue:`711`). these tooltips are now disabled on old PySide (:ghpull:`963`). |
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92 | 96 | |
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97 | * IPython no longer crashes when started on recent versions of Python 3 in | |
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98 | Windows (:ghissue:`737`). | |
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99 | ||
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93 | 100 | .. * use bullet list |
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94 | 101 | |
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95 | 102 | Backwards incompatible changes |
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96 | 103 | ------------------------------ |
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97 | 104 | |
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98 | 105 | * IPython connection information is no longer specified via ip/port directly, |
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99 | 106 | rather via json connection files. These files are stored in the security |
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100 | 107 | directory, and enable us to turn on HMAC message authentication by default, |
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101 | 108 | significantly improving the security of kernels. Various utility functions |
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102 | 109 | have been added to :mod:`IPython.lib.kernel`, for easier connecting to existing |
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103 | 110 | kernels. |
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104 | 111 | |
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105 | 112 | * :class:`~IPython.zmq.kernelmanager.KernelManager` now has one ip, and several port |
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106 | 113 | traits, rather than several ip/port pair ``_addr`` traits. This better matches the |
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107 | 114 | rest of the code, where the ip cannot not be set separately for each channel. |
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108 | 115 | |
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109 | 116 | * The class inheritance of the Launchers in :mod:`IPython.parallel.apps.launcher` |
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110 | 117 | used by ipcluster has changed, so that trait names are more consistent across |
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111 | 118 | batch systems. This may require a few renames in your config files, if you |
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112 | 119 | customized the command-line args for launching controllers and engines. The |
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113 | 120 | configurable names have also been changed to be clearer that they point to class |
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114 | 121 | names, and can now be specified by name only, rather than requiring the full |
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115 | 122 | import path of each class, e.g.:: |
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116 | 123 | |
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117 | 124 | IPClusterEngines.engine_launcher = 'IPython.parallel.apps.launcher.MPIExecEngineSetLauncher' |
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118 | 125 | IPClusterStart.controller_launcher = 'IPython.parallel.apps.launcher.SSHControllerLauncher' |
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119 | 126 | |
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120 | 127 | would now be specified as:: |
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121 | 128 | |
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122 | 129 | IPClusterEngines.engine_launcher_class = 'MPIExec' |
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123 | 130 | IPClusterStart.controller_launcher_class = 'SSH' |
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124 | 131 | |
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125 | 132 | The full path will still work, and is necessary for using custom launchers not in |
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126 | 133 | IPython's launcher module. |
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127 | 134 | |
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128 | 135 | .. * use bullet list |
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