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bpo-41376: Correct the documentation on ``site.getusersitepackages()`` regarding respecting PYTHONNOUSERSITE by pelson · Pull Request #21602 · python/cpython

the-knights-who-say-ni

…` regarding respecting PYTHONNOUSERSITE

``site.getusersitepackages()`` returns the location of the user-specific site-packages directory
whether or not it exists, or is added to the ``sys.path``. We can see this easily with:

```
$ python  -c "import site; print(site.getusersitepackages())"
/home/user/.local/lib/python3.7/site-packages

$ python -s -c "import site; print(site.getusersitepackages())"
/home/user/.local/lib/python3.7/site-packages

```

This is even true when the user-specific site-packages doesn't exist, as is demonstrated by:

```
$ python -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: True

$ python -s -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: False

```

It was not practical to prevent the function from returning None if user-specific site-packages are disabled, since there are other uses of the function which are relying on this behaviour (e.g. ``python -m site``).

@pelson pelson changed the base branch from 3.8 to master

July 23, 2020 15:38

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request

Oct 8, 2020 
…honGH-21602)

`site.getusersitepackages()` returns the location of the user-specific site-packages directory
even when the user-specific site-packages is disabled.

```
$ python -s -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: False
```

It was not practical to prevent the function from returning None if user-specific site-packages are disabled, since there are other uses of the function which are relying on this behaviour (e.g. `python -m site`).
(cherry picked from commit 35f041d)

Co-authored-by: Phil Elson <pelson.pub@gmail.com>

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request

Oct 8, 2020 
…honGH-21602)

`site.getusersitepackages()` returns the location of the user-specific site-packages directory
even when the user-specific site-packages is disabled.

```
$ python -s -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: False
```

It was not practical to prevent the function from returning None if user-specific site-packages are disabled, since there are other uses of the function which are relying on this behaviour (e.g. `python -m site`).
(cherry picked from commit 35f041d)

Co-authored-by: Phil Elson <pelson.pub@gmail.com>

miss-islington added a commit that referenced this pull request

Oct 8, 2020 
…21602)

`site.getusersitepackages()` returns the location of the user-specific site-packages directory
even when the user-specific site-packages is disabled.

```
$ python -s -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: False
```

It was not practical to prevent the function from returning None if user-specific site-packages are disabled, since there are other uses of the function which are relying on this behaviour (e.g. `python -m site`).
(cherry picked from commit 35f041d)

Co-authored-by: Phil Elson <pelson.pub@gmail.com>

shihai1991 added a commit to shihai1991/cpython that referenced this pull request

Oct 9, 2020 
* origin/master: (147 commits)
  Fix the attribute names in the docstring of GenericAlias (pythonGH-22594)
  bpo-39337: Add a test case for normalizing of codec names (pythonGH-19069)
  bpo-41557: Update Windows installer to use SQLite 3.33.0 (pythonGH-21960)
  bpo-41976: Fix the fallback to gcc of ctypes.util.find_library when using gcc>9 (pythonGH-22598)
  bpo-41306: Allow scale value to not be rounded (pythonGH-21715)
  bpo-41970: Avoid test failure in test_lib2to3 if the module is already imported (pythonGH-22595)
  bpo-41376: Fix the documentation of `site.getusersitepackages()` (pythonGH-21602)
  Revert "bpo-26680: Incorporate is_integer in all built-in and standard library numeric types (pythonGH-6121)" (pythonGH-22584)
  bpo-41923: PEP 613: Add TypeAlias to typing module (python#22532)
  Fix comment about PyObject_IsTrue. (pythonGH-22343)
  bpo-38605: Make 'from __future__ import annotations' the default (pythonGH-20434)
  bpo-41905: Add abc.update_abstractmethods() (pythonGH-22485)
  bpo-41944: No longer call eval() on content received via HTTP in the UnicodeNames tests (pythonGH-22575)
  bpo-41944: No longer call eval() on content received via HTTP in the CJK codec tests (pythonGH-22566)
  Post 3.10.0a1
  Python 3.10.0a1
  bpo-41584: clarify when the reflected method of a binary arithemtic operator is called (python#22505)
  bpo-41939: Fix test_site.test_license_exists_at_url() (python#22559)
  bpo-41774: Tweak new programming FAQ entry (pythonGH-22562)
  bpo-41936. Remove macros Py_ALLOW_RECURSION/Py_END_ALLOW_RECURSION (pythonGH-22552)
  ...

pablogsal pushed a commit that referenced this pull request

Oct 11, 2020 
…21602) (GH-22592)

`site.getusersitepackages()` returns the location of the user-specific site-packages directory
even when the user-specific site-packages is disabled.

```
$ python -s -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: False
```

It was not practical to prevent the function from returning None if user-specific site-packages are disabled, since there are other uses of the function which are relying on this behaviour (e.g. `python -m site`).
(cherry picked from commit 35f041d)

Co-authored-by: Phil Elson <pelson.pub@gmail.com>

Co-authored-by: Phil Elson <pelson.pub@gmail.com>

@pelson pelson deleted the getusersitepackages_and_pynoaddusersite branch

October 13, 2020 07:04

xzy3 pushed a commit to xzy3/cpython that referenced this pull request

Oct 18, 2020 
…honGH-21602)

`site.getusersitepackages()` returns the location of the user-specific site-packages directory
even when the user-specific site-packages is disabled.

```
$ python -s -m site
sys.path = [
    '/home/user/conda/lib/python37.zip',
    '/home/user/conda/lib/python3.7',
    '/home/user/conda/lib/python3.7/lib-dynload',
    '/home/user/conda/lib/python3.7/site-packages',
]
USER_BASE: '/home/user/.local' (exists)
USER_SITE: '/home/user/.local/lib/python3.7/site-packages' (doesn't exist)
ENABLE_USER_SITE: False
```

It was not practical to prevent the function from returning None if user-specific site-packages are disabled, since there are other uses of the function which are relying on this behaviour (e.g. `python -m site`).