diff options
| author | Nick Coghlan <ncoghlan@gmail.com> | 2018-03-25 13:03:10 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-03-25 13:03:10 (GMT) |
| commit | d5d9e02dd3c6df06a8dd9ce75ee9b52976420a8b (patch) | |
| tree | c3c02b573a85d3a5caa61e1dd5188ba6bec36392 /Doc | |
| parent | bc77eff8b96be4f035e665ab35c1d06e22f46491 (diff) | |
| download | cpython-d5d9e02dd3c6df06a8dd9ce75ee9b52976420a8b.zip cpython-d5d9e02dd3c6df06a8dd9ce75ee9b52976420a8b.tar.gz cpython-d5d9e02dd3c6df06a8dd9ce75ee9b52976420a8b.tar.bz2 | |
bpo-33053: -m now adds *starting* directory to sys.path (GH-6231)
Historically, -m added the empty string as sys.path
zero, meaning it resolved imports against the current
working directory, the same way -c and the interactive
prompt do.
This changes the sys.path initialisation to add the
*starting* working directory as sys.path[0] instead,
such that changes to the working directory while the
program is running will have no effect on imports
when using the -m switch.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/test.rst | 4 | ||||
| -rw-r--r-- | Doc/whatsnew/3.7.rst | 11 |
2 files changed, 13 insertions, 2 deletions
diff --git a/Doc/library/test.rst b/Doc/library/test.rst index 6041f52..0746fcf 100644 --- a/Doc/library/test.rst +++ b/Doc/library/test.rst @@ -1332,8 +1332,8 @@ script execution tests. .. function:: run_python_until_end(*args, **env_vars) Set up the environment based on *env_vars* for running the interpreter - in a subprocess. The values can include ``__isolated``, ``__cleavenv``, - and ``TERM``. + in a subprocess. The values can include ``__isolated``, ``__cleanenv``, + ``__cwd``, and ``TERM``. .. function:: assert_python_ok(*args, **env_vars) diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst index 0b5ad00..e0c19cf 100644 --- a/Doc/whatsnew/3.7.rst +++ b/Doc/whatsnew/3.7.rst @@ -421,6 +421,12 @@ Other Language Changes writable. (Contributed by Nathaniel J. Smith in :issue:`30579`.) +* When using the :option:`-m` switch, ``sys.path[0]`` is now eagerly expanded + to the full starting directory path, rather than being left as the empty + directory (which allows imports from the *current* working directory at the + time when an import occurs) + (Contributed by Nick Coghlan in :issue:`33053`.) + New Modules =========== @@ -1138,6 +1144,11 @@ Changes in Python behavior parentheses can be omitted only on calls. (Contributed by Serhiy Storchaka in :issue:`32012` and :issue:`32023`.) +* When using the ``-m`` switch, the starting directory is now added to sys.path, + rather than the current working directory. Any programs that are found to be + relying on the previous behaviour will need to be updated to manipulate + :data:`sys.path` appropriately. + Changes in the Python API ------------------------- |