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Diffstat (limited to 'Doc/whatsnew/3.4.rst')
| -rw-r--r-- | Doc/whatsnew/3.4.rst | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst index 7681fae..c8791e4 100644 --- a/Doc/whatsnew/3.4.rst +++ b/Doc/whatsnew/3.4.rst @@ -1360,6 +1360,19 @@ blocks allocated by the interpreter (in CPython with the default especially if automated via a test suite. (Contributed by Antoine Pitrou in :issue:`13390`.) +When the Python interpreter starts in :ref:`interactive mode +<tut-interactive>`, it checks for an :data:`~sys.__interactivehook__` attribute +on the :mod:`sys` module. If the attribute exists, its value is called with no +arguments just before interactive mode is started. The check is made after the +:envvar:`PYTHONSTARTUP` file is read, so it can be set there. The :mod:`site` +module :ref:`sets it <rlcompleter-config>` to a function that enables tab +completion and history saving (in :file:`~/.python-history`) if the platform +supports :mod:`readline`. If you do not want this (new) behavior, you can +override it in :envvar:`PYTHONSTARTUP`, :mod:`sitecustomize`, or +:mod:`usercustomize` by deleting this attribute from :mod:`sys` (or setting it +to some other callable). (Contributed by Éric Araujo and Antoine Pitrou in +:issue:`5845`.) + textwrap -------- @@ -1694,7 +1707,9 @@ Other Improvements most POSIX systems it can and should be used in the ``#!`` line of system scripts. (Contributed by Christian Heimes in :issue:`16499`.) -* Tab-completion is now enabled by default in the interactive interpreter. +* Tab-completion is now enabled by default in the interactive interpreter + on systems that support :mod:`readline`. History is also enabled by default, + and is written to (and read from) the file :file:`~/.python-history`. (Contributed by Antoine Pitrou and Éric Araujo in :issue:`5845`.) * Invoking the Python interpreter with ``--version`` now outputs the version to |