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pip list |head raises BrokenPipeError #4170

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bmaggard opened this Issue Dec 10, 2016 · 15 comments

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bmaggard commented Dec 10, 2016

  • Pip version: pip 9.0.1
  • Python version: python 3.5
  • Operating System: OS X 10.11.6 (15G1108)

Description:

pip list |tail
works like it should

pip list |head
... not so much

What I've run:

pip list |head

Output, for each package:

--- Logging error ---
Traceback (most recent call last):
File "/Users/.../anaconda/lib/python3.5/logging/init.py", line 984, in emit
self.flush()
File "/Users/.../anaconda/lib/python3.5/logging/init.py", line 964, in flush
self.stream.flush()
BrokenPipeError: [Errno 32] Broken pipe
Call stack:
File "/Users/.../anaconda/bin/pip", line 6, in
sys.exit(pip.main())
File "/Users/.../anaconda/lib/python3.5/site-packages/pip/init.py", line 249, in main
return command.main(cmd_args)
File "/Users/.../anaconda/lib/python3.5/site-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/Users/.../anaconda/lib/python3.5/site-packages/pip/commands/list.py", line 164, in run
self.output_package_listing(packages, options)
File "/Users/.../anaconda/lib/python3.5/site-packages/pip/commands/list.py", line 258, in output_package_listing
logger.info(self.output_legacy(dist))
Message: 'xlwt (1.1.2)'
Arguments: ()
Exception ignored in: <_io.TextIOWrapper name='' mode='w' encoding='UTF-8'>
BrokenPipeError: [Errno 32] Broken pipe

@IanLee1521

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IanLee1521 commented Dec 10, 2016

FWIW, I do not see this in pip 9.0.1, python 2.7.12, OS X 10.11.6 --

$ pip list |head
Package    Version
---------- --------
pip        9.0.1
setuptools 30.4.0
wheel      0.30.0a0

Note, I'm also not using anaconda.

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xavfernandez commented Dec 10, 2016

This behavior only appears with enough output (in my case, at least 11 lines).
I'm getting the same issue but it seems unrelated to pip.

import logging.config


logging.config.dictConfig({
    "version": 1,
    "handlers": {
        "console": {
            "level": logging.INFO,
            "class": "logging.StreamHandler",
            "stream": "ext://sys.stdout",
        },
    },
    "root": {
        "level": logging.INFO,
        "handlers": ["console"],
    },
})

logger = logging.getLogger(__name__)
for i in range(11):
    logger.info('Test %s', i)

yields the same logging error:

Test 0
Test 1
Test 2
Test 3
Test 4
Test 5
Test 6
Test 7
Test 8
Test 9
--- Logging error ---
Traceback (most recent call last):
  File "/usr/lib/python3.5/logging/__init__.py", line 984, in emit
    self.flush()
  File "/usr/lib/python3.5/logging/__init__.py", line 964, in flush
    self.stream.flush()
BrokenPipeError: [Errno 32] Broken pipe
Call stack:
  File "test_log_pip.py", line 21, in <module>
    logger.info('Test %s', i)
Message: 'Test %s'
Arguments: (10,)
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'>
BrokenPipeError: [Errno 32] Broken pipe

Note how it successfully work for the 10 first lines.
I'm getting the same error with python 3.5 and 3.4

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pradyunsg commented Dec 22, 2016

To quote from http://www.unixguide.net/unix/bash/E2.shtml

If a sequence of commands appears in a pipeline, and one of the
reading commands finishes before the writer has finished, the
writer receives a SIGPIPE signal.

As far as I can see, this also closes the pipe's stdout, so I'm not sure how to handle this.

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piotr-dobrogost commented Dec 22, 2016

For reference: How can I fix a Broken Pipe error? at SU.

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pradyunsg commented Dec 22, 2016

From the link @piotr-dobrogost posted, here's a workaround:

pip list | tail -n +1 | head -1

This "bug" is essentially how unix pipes work. pip can't do anything about this.

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pradyunsg commented Jan 16, 2017

Can we please close this? This is not a pip bug.

@bmaggard

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bmaggard commented Jan 16, 2017

I'm not very educated on this topic, and I'm not clear on who you're asking to close it. My goal was to report it as a usability issue I was experiencing when using pip. Someone else marked it a 'bug'.

Isn't it pip's responsibility to handle the EPIPE/SIGPIPE gracefully? Or perhaps it's some underlying library's responsibility?

Do we at least agree that I should be seeing the first 10 lines of output, rather than a stack trace?

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ankostis commented Aug 21, 2018

Cause

As can bee seen by the stack-trace, this annoyance is caused by standard python's logging-handlers that are not guarding against BrokenPipeError exceptions (from the OP):

...
File "/Users/.../anaconda/lib/python3.5/logging/init.py", line 964, in flush
self.stream.flush()
BrokenPipeError: [Errno 32] Broken pipe

Prevention

It maybe worthy for pip to mitigate it in the code that sets up logging:

class ColorizedStreamHandler(logging.StreamHandler):

  • either by overriding flush() in all XyzHandler classes declared there,
  • or by monkey-patching the base logging.Streamhandler.flush() with:
   # Monkeypatch logging to behave when piped.
    old_flush = logging.StreamHandler.flush

    def flush(self):
        try:
            old_flush(self)
        except BrokenPipeError:
            pass  # is our stderr piped in `head` or `tail`?

    logging.StreamHandler.flush = flush

I can provide a patch if you agree (and decide which method to apply).

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pradyunsg commented Aug 21, 2018

I'm not sure simply covering up flush() is enough here. Could you check that applying this fix will result in unintended side-effects elsewhere?

If we do decide to go ahead with a PR here, we'd definitely be overriding flush() in our subclass.

ankostis added a commit to ankostis/pip that referenced this issue Aug 21, 2018

ankostis added a commit to ankostis/pip that referenced this issue Aug 21, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.

ankostis added a commit to ankostis/pip that referenced this issue Aug 21, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.

ankostis added a commit to ankostis/pip that referenced this issue Aug 22, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.

ankostis added a commit to ankostis/pip that referenced this issue Aug 22, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.

ankostis added a commit to ankostis/pip that referenced this issue Aug 22, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.

ankostis added a commit to ankostis/pip that referenced this issue Aug 22, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.

ankostis added a commit to ankostis/pip that referenced this issue Aug 22, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.
+ Fix a bit the TC according to PY2 behavior.

ankostis added a commit to ankostis/pip that referenced this issue Aug 23, 2018

ankostis added a commit to ankostis/pip that referenced this issue Aug 23, 2018

fix: patch also stdout.flush() from colorama for pypa#4170
bc on Windows it breaks with OSError(errno.EINVAL) after pip has broken.
+ Fix a bit the TC according to PY2 behavior.
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HaleTom commented Oct 21, 2018

I'm also seeing this on Arch Linux:

% pip --version
pip 18.1 from /home/ravi/.local/share/miniconda3/lib/python3.6/site-packages/pip (python 3.6)
% pip list | grep -q pip

[Lots of stack trace follows]

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cjerdonek commented Oct 21, 2018

Hmm, overriding flush doesn't seem quite like the right approach to me here. One concern I'd have is that swallowing BrokenPipeError could have side effects like silently masking issues (e.g. letting the program continue in a broken state). A perhaps better approach I think would be to let the BrokenPipeError error bubble up (e.g. to main()), and handle it there by writing a simple message to stderr that the pipe to stdout has been broken.

A similar issue (still open) was discussed on the CPython tracker here: https://bugs.python.org/issue11380
There @ncoghlan suggested an approach in the following comment that is similar to what I described above (indeed I might have gotten the idea from reading that comment :)):
https://bugs.python.org/issue11380#msg198349

I can post a patch in a short bit showing what I mean more specifically. It seems simpler and doesn't involve modifying any vendored libraries.

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cjerdonek commented Oct 21, 2018

I posted a proof-of-concept here: #5907

@pradyunsg pradyunsg added this to the Print Better Error Messages milestone Nov 15, 2018

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pradyunsg commented Nov 15, 2018

I like the approach taken there in that PR.

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cjerdonek commented Jan 15, 2019

My PR #5907 for this issue is now ready to be reviewed. I finished adding the tests I wanted to add.

pradyunsg added a commit that referenced this issue Jan 21, 2019

Merge pull request #5907 from cjerdonek/broken-pipe-error
Handle BrokenPipeError gracefully (#4170)
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nsoranzo commented Jan 21, 2019

I suppose this can be closed now that #5907 has been merged.

@pradyunsg pradyunsg closed this Jan 21, 2019

bors bot added a commit to mozilla/normandy that referenced this issue Feb 7, 2019

Merge #1723
1723: Scheduled weekly dependency update for week 05 r=mythmon a=pyup-bot






### Update [atomicwrites](https://pypi.org/project/atomicwrites) from **1.2.1** to **1.3.0**.


*The bot wasn't able to find a changelog for this release. [Got an idea?](https://github.com/pyupio/changelogs/issues/new)*

<details>
  <summary>Links</summary>
  
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  - Repo: https://github.com/untitaker/python-atomicwrites
</details>





### Update [botocore](https://pypi.org/project/botocore) from **1.12.82** to **1.12.86**.


<details>
  <summary>Changelog</summary>
  
  
   ### 1.12.86
   ```
   =======

* api-change:``devicefarm``: Update devicefarm client to latest version
* api-change:``codecommit``: Update codecommit client to latest version
* api-change:``medialive``: Update medialive client to latest version
* api-change:``mediaconnect``: Update mediaconnect client to latest version
   ```
   
  
  
   ### 1.12.85
   ```
   =======

* api-change:``logs``: Update logs client to latest version
* api-change:``elbv2``: Update elbv2 client to latest version
* api-change:``rds``: Update rds client to latest version
* api-change:``codebuild``: Update codebuild client to latest version
* api-change:``sms-voice``: Update sms-voice client to latest version
* api-change:``ecr``: Update ecr client to latest version
   ```
   
  
  
   ### 1.12.84
   ```
   =======

* api-change:``worklink``: Update worklink client to latest version
* api-change:``apigatewaymanagementapi``: Update apigatewaymanagementapi client to latest version
* api-change:``acm-pca``: Update acm-pca client to latest version
   ```
   
  
  
   ### 1.12.83
   ```
   =======

* api-change:``appstream``: Update appstream client to latest version
* api-change:``discovery``: Update discovery client to latest version
* api-change:``dms``: Update dms client to latest version
* api-change:``fms``: Update fms client to latest version
* api-change:``ssm``: Update ssm client to latest version
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/botocore
  - Changelog: https://pyup.io/changelogs/botocore/
  - Repo: https://github.com/boto/botocore
</details>





### Update [Faker](https://pypi.org/project/Faker) from **1.0.1** to **1.0.2**.


<details>
  <summary>Changelog</summary>
  
  
   ### 1.0.2
   ```
   --------------------------------------------------------------------------------------

* Fix state abbreviations for ``id_ID`` to be 2-letters. Thanks dt-ap.
* Fix format for ``city_with_postcode`` on ``de_DE`` locale. Thanks TZanke.
* Update ``person`` providers for ``zh_CN``. Thanks TimeFinger.
* Implement ``zipcode_in_state`` and aliases in ``en_US`` locale for generating
  a zipcode for a specified state. Thanks mattyg.
* Group first names by gender on ``zh_CN`` provider. Thanks TimeFinger.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/faker
  - Changelog: https://pyup.io/changelogs/faker/
  - Repo: https://github.com/joke2k/faker
</details>





### Update [pycodestyle](https://pypi.org/project/pycodestyle) from **2.4.0** to **2.5.0**.


<details>
  <summary>Changelog</summary>
  
  
   ### 2.5.0
   ```
   ------------------

New checks:

* E117: Over-indented code blocks
* W505: Maximum doc-string length only when configured with --max-doc-length

Changes:

* Remove support for EOL Python 2.6 and 3.3. PR 720.
* Add E117 error for over-indented code blocks.
* Allow W605 to be silenced by ` noqa` and fix the position reported by W605
* Allow users to omit blank lines around one-liner definitions of classes and
  functions
* Include the function return annotation (``-&gt;``) as requiring surrounding
  whitespace only on Python 3
* Verify that only names can follow ``await``. Previously we allowed numbers
  and strings.
* Add support for Python 3.7
* Fix detection of annotated argument defaults for E252
* Cprrect the position reported by W504
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pycodestyle
  - Changelog: https://pyup.io/changelogs/pycodestyle/
  - Docs: https://pycodestyle.readthedocs.io/
</details>





### Update [pyflakes](https://pypi.org/project/pyflakes) from **2.0.0** to **2.1.0**.


<details>
  <summary>Changelog</summary>
  
  
   ### 2.1.0
   ```
   - Allow intentional assignment to variables named ``_``
- Recognize ``__module__`` as a valid name in class scope
- ``pyflakes.checker.Checker`` supports checking of partial ``ast`` trees
- Detect assign-before-use for local variables which shadow builtin names
- Detect invalid ``print`` syntax using ``&gt;&gt;`` operator
- Treat ``async for`` the same as a ``for`` loop for introducing variables
- Add detection for list concatenation in ``__all__``
- Exempt ``typing.overload`` from duplicate function declaration
- Importing a submodule of an ``as``-aliased ``import``-import is marked as
  used
- Report undefined names from ``__all__`` as possibly coming from a ``*``
  import
- Add support for changes in Python 3.8-dev
- Add support for PEP 563 (``from __future__ import annotations``)
- Include Python version and platform information in ``pyflakes --version``
- Recognize ``__annotations__`` as a valid magic global in Python 3.6+
- Mark names used in PEP 484 `` type: ...`` comments as used
- Add check for use of ``is`` operator with ``str``, ``bytes``, and ``int``
  literals
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pyflakes
  - Changelog: https://pyup.io/changelogs/pyflakes/
  - Repo: https://github.com/PyCQA/pyflakes
</details>





### Update [setuptools](https://pypi.org/project/setuptools) from **40.6.3** to **40.7.3**.


<details>
  <summary>Changelog</summary>
  
  
   ### 40.7.3
   ```
   -------

* 1670: In package_index, revert to using a copy of splituser from Python 3.8. Attempts to use ``urllib.parse.urlparse`` led to problems as reported in 1663 and 1668. This change serves as an alternative to 1499 and fixes 1668.
   ```
   
  
  
   ### 40.7.2
   ```
   -------

* 1666: Restore port in URL handling in package_index.
   ```
   
  
  
   ### 40.7.1
   ```
   -------

* 1660: On Python 2, when reading config files, downcast options from text to bytes to satisfy distutils expectations.
   ```
   
  
  
   ### 40.7.0
   ```
   -------

* 1551: File inputs for the `license` field in `setup.cfg` files now explicitly raise an error.
* 1180: Add support for non-ASCII in setup.cfg (1062). Add support for native strings on some parameters (1136).
* 1499: ``setuptools.package_index`` no longer relies on the deprecated ``urllib.parse.splituser`` per Python 27485.
* 1544: Added tests for PackageIndex.download (for git URLs).
* 1625: In PEP 517 build_meta builder, ensure that sdists are built as gztar per the spec.
   ```
   
  
</details>


 

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</details>





### Update [cachetools](https://pypi.org/project/cachetools) from **3.0.0** to **3.1.0**.


<details>
  <summary>Changelog</summary>
  
  
   ### 3.1.0
   ```
   -------------------

- Fix Python 3.8 compatibility issue.

- Use ``time.monotonic`` as default timer if available.

- Improve documentation regarding thread safety.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/cachetools
  - Changelog: https://pyup.io/changelogs/cachetools/
  - Repo: https://github.com/tkem/cachetools
</details>





### Update [boto3](https://pypi.org/project/boto3) from **1.9.82** to **1.9.86**.


<details>
  <summary>Changelog</summary>
  
  
   ### 1.9.86
   ```
   ======

* api-change:``devicefarm``: [``botocore``] Update devicefarm client to latest version
* api-change:``codecommit``: [``botocore``] Update codecommit client to latest version
* api-change:``medialive``: [``botocore``] Update medialive client to latest version
* api-change:``mediaconnect``: [``botocore``] Update mediaconnect client to latest version
   ```
   
  
  
   ### 1.9.85
   ```
   ======

* api-change:``logs``: [``botocore``] Update logs client to latest version
* api-change:``elbv2``: [``botocore``] Update elbv2 client to latest version
* api-change:``rds``: [``botocore``] Update rds client to latest version
* api-change:``codebuild``: [``botocore``] Update codebuild client to latest version
* api-change:``sms-voice``: [``botocore``] Update sms-voice client to latest version
* api-change:``ecr``: [``botocore``] Update ecr client to latest version
   ```
   
  
  
   ### 1.9.84
   ```
   ======

* api-change:``worklink``: [``botocore``] Update worklink client to latest version
* api-change:``apigatewaymanagementapi``: [``botocore``] Update apigatewaymanagementapi client to latest version
* api-change:``acm-pca``: [``botocore``] Update acm-pca client to latest version
   ```
   
  
  
   ### 1.9.83
   ```
   ======

* api-change:``appstream``: [``botocore``] Update appstream client to latest version
* api-change:``discovery``: [``botocore``] Update discovery client to latest version
* api-change:``dms``: [``botocore``] Update dms client to latest version
* api-change:``fms``: [``botocore``] Update fms client to latest version
* api-change:``ssm``: [``botocore``] Update ssm client to latest version
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/boto3
  - Changelog: https://pyup.io/changelogs/boto3/
  - Repo: https://github.com/boto/boto3
</details>





### Update [flake8](https://pypi.org/project/flake8) from **3.6.0** to **3.7.5**.


<details>
  <summary>Changelog</summary>
  
  
   ### 3.7.5
   ```
   -------------------

You can view the `3.7.5 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix reporting of pyflakes &quot;referenced before assignment&quot; error (See also
  `GitLab!301`_, `GitLab503`_)


.. all links
.. _3.7.5 milestone:
    https://gitlab.com/pycqa/flake8/milestones/28

.. issue links
.. _GitLab503:
    https://gitlab.com/pycqa/flake8/issues/503

.. merge request links
.. _GitLab!301:
    https://gitlab.com/pycqa/flake8/merge_requests/301
   ```
   
  
  
   ### 3.7.4
   ```
   -------------------

You can view the `3.7.4 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix performance regression with lots of ``per-file-ignores`` and errors
  (See also `GitLab!299`_, `GitLab501`_)


.. all links
.. _3.7.4 milestone:
    https://gitlab.com/pycqa/flake8/milestones/27

.. issue links
.. _GitLab501:
    https://gitlab.com/pycqa/flake8/issues/501

.. merge request links
.. _GitLab!299:
    https://gitlab.com/pycqa/flake8/merge_requests/299
   ```
   
  
  
   ### 3.7.3
   ```
   -------------------

You can view the `3.7.3 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix imports of ``typing`` in python 3.5.0 / 3.5.1 (See also `GitLab!294`_,
  `GitLab498`_)

- Fix ``flake8 --statistics`` (See also `GitLab!295`_, `GitLab499`_)

- Gracefully ignore ``flake8-per-file-ignores`` plugin if installed (See also
  `GitLab!297`_, `GitLab495`_)

- Improve error message for malformed ``per-file-ignores`` (See also
  `GitLab!298`_, `GitLab489`_)


.. all links
.. _3.7.3 milestone:
    https://gitlab.com/pycqa/flake8/milestones/26

.. issue links
.. _GitLab489:
    https://gitlab.com/pycqa/flake8/issues/489
.. _GitLab495:
    https://gitlab.com/pycqa/flake8/issues/495
.. _GitLab498:
    https://gitlab.com/pycqa/flake8/issues/498
.. _GitLab499:
    https://gitlab.com/pycqa/flake8/issues/499

.. merge request links
.. _GitLab!294:
    https://gitlab.com/pycqa/flake8/merge_requests/294
.. _GitLab!295:
    https://gitlab.com/pycqa/flake8/merge_requests/295
.. _GitLab!297:
    https://gitlab.com/pycqa/flake8/merge_requests/297
.. _GitLab!298:
    https://gitlab.com/pycqa/flake8/merge_requests/298
   ```
   
  
  
   ### 3.7.2
   ```
   -------------------

You can view the `3.7.2 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix broken ``flake8 --diff`` (regressed in 3.7.0) (See also `GitLab!292`_,
  `GitLab490`_)

- Fix typo in plugin exception reporting (See also `GitLab!275`_,
  `GitLab491`_)

- Fix ``AttributeError`` while attempting to use the legacy api (regressed in
  3.7.0) (See also `GitLab!293`_, `GitLab497`_)

.. all links
.. _3.7.2 milestone:
    https://gitlab.com/pycqa/flake8/milestones/25

.. issue links
.. _GitLab490:
    https://gitlab.com/pycqa/flake8/issues/490
.. _GitLab491:
    https://gitlab.com/pycqa/flake8/issues/491
.. _GitLab497:
    https://gitlab.com/pycqa/flake8/issues/497

.. merge request links
.. _GitLab!292:
    https://gitlab.com/pycqa/flake8/merge_requests/292
.. _GitLab!275:
    https://gitlab.com/pycqa/flake8/merge_requests/275
.. _GitLab!293:
    https://gitlab.com/pycqa/flake8/merge_requests/293
   ```
   
  
  
   ### 3.7.1
   ```
   -------------------

You can view the `3.7.1 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix capitalized filenames in ``per-file-ignores`` setting (See also
  `GitLab!290`_, `GitLab488`_)

.. all links
.. _3.7.1 milestone:
    https://gitlab.com/pycqa/flake8/milestones/24

.. issue links
.. _GitLab488:
    https://gitlab.com/pycqa/flake8/issues/488

.. merge request links
.. _GitLab!290:
    https://gitlab.com/pycqa/flake8/merge_requests/290
   ```
   
  
  
   ### 3.7.0
   ```
   -------------------

You can view the `3.7.0 milestone`_ on GitLab for more details.

New Dependency Information
~~~~~~~~~~~~~~~~~~~~~~~~~~

- Add dependency on ``entrypoints`` &gt;= 0.3, &lt; 0.4 (See also `GitLab!264`_,
  `GitLab!288`_)

- Pyflakes has been updated to &gt;= 2.1.0, &lt; 2.2.0 (See also `GitLab!283`_,
  `GitLab!285`_)

- pycodestyle has been updated to &gt;= 2.5.0, &lt; 2.6.0 (See also `GitLab!287`_)

Features
~~~~~~~~

- Add support for ``per-file-ignores`` (See also `GitLab!259`_, `GitLab156`_,
  `GitLab!281`_, `GitLab471`_)

- Enable use of ``float`` and ``complex`` option types (See also `GitLab!261`_,
  `GitLab452`_)

- Improve startup performance by switching from ``pkg_resources`` to
  ``entrypoints`` (See also `GitLab!264`_)

- Add metadata for use through the `pre-commit`_ git hooks framework (See also
  `GitLab!268`_, `GitLab!284`_)

- Allow physical line checks to return more than one result (See also
  `GitLab!269`_)

- Allow `` noqa:X123`` comments without space between the colon and codes
  list (See also `GitLab!273`_, `GitLab470`_)

- Remove broken and unused ``flake8.listen`` plugin type (See also
  `GitLab!274`_, `GitLab480`_)

.. all links
.. _3.7.0 milestone:
    https://gitlab.com/pycqa/flake8/milestones/23
.. _pre-commit:
    https://pre-commit.com/

.. issue links
.. _GitLab156:
    https://gitlab.com/pycqa/flake8/issues/156
.. _GitLab452:
    https://gitlab.com/pycqa/flake8/issues/452
.. _GitLab470:
    https://gitlab.com/pycqa/flake8/issues/470
.. _GitLab471:
    https://gitlab.com/pycqa/flake8/issues/471
.. _GitLab480:
    https://gitlab.com/pycqa/flake8/issues/480

.. merge request links
.. _GitLab!259:
    https://gitlab.com/pycqa/flake8/merge_requests/259
.. _GitLab!261:
    https://gitlab.com/pycqa/flake8/merge_requests/261
.. _GitLab!264:
    https://gitlab.com/pycqa/flake8/merge_requests/264
.. _GitLab!268:
    https://gitlab.com/pycqa/flake8/merge_requests/268
.. _GitLab!269:
    https://gitlab.com/pycqa/flake8/merge_requests/269
.. _GitLab!273:
    https://gitlab.com/pycqa/flake8/merge_requests/273
.. _GitLab!274:
    https://gitlab.com/pycqa/flake8/merge_requests/274
.. _GitLab!281:
    https://gitlab.com/pycqa/flake8/merge_requests/281
.. _GitLab!283:
    https://gitlab.com/pycqa/flake8/merge_requests/283
.. _GitLab!284:
    https://gitlab.com/pycqa/flake8/merge_requests/284
.. _GitLab!285:
    https://gitlab.com/pycqa/flake8/merge_requests/285
.. _GitLab!287:
    https://gitlab.com/pycqa/flake8/merge_requests/287
.. _GitLab!288:
    https://gitlab.com/pycqa/flake8/merge_requests/288
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/flake8
  - Changelog: https://pyup.io/changelogs/flake8/
  - Repo: https://gitlab.com/pycqa/flake8
</details>





### Update [newrelic](https://pypi.org/project/newrelic) from **4.10.0.112** to **4.12.0.113**.


<details>
  <summary>Changelog</summary>
  
  
   ### 4.12.0.113
   ```
   This release of the Python agent extends support of Amazon&#39;s boto3 library and includes bug fixes.

The agent can be installed using easy_install/pip/distribute via the Python Package Index or can be downloaded directly from the New Relic download site.

Features


AWS operation and request ID will now be reported in transaction traces and
spans when using boto3 and botocore.

The agent will now report aws.requestId and aws.operation for all calls
to AWS made using botocore and boto3.
DynamoDB calls are now reported under the Databases tab.

The agent will now record DynamoDB query performance in the Databases tab in
APM in addition to table name for the following calls:


put_item
get_item
update_item
delete_item
create_table
delete_table
query
scan

Certain SQS calls will now report additional data for spans and transaction
traces.

The agent will now record the queue name in spans and transaction traces for
the following SQS calls:


send_message
send_message_batch
receive_message

SNS publish will now report additional data for spans and transaction traces.

The SNS topic, target, or the string literal PhoneNumber will be reported to
New Relic inside of spans and transaction traces.
The full URL path will now be recorded on span events and transaction traces
when using boto3 or botocore.

The agent will now record the full URL path for API calls made to AWS through
the boto3 / botocore libraries. The path will be available through span
events and transaction traces.


Bug Fixes


Using newrelic-admin to start a GunicornWebWorker with an application factory
resulted in an application crash.

The agent would fail to start if using the newrelic-admin command to start an
aiohttp application factory with GunicornWebWorker. This issue has now been
fixed.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/newrelic
  - Changelog: https://pyup.io/changelogs/newrelic/
  - Homepage: http://newrelic.com/docs/python/new-relic-for-python
</details>





### Update [psycopg2](https://pypi.org/project/psycopg2) from **2.7.6.1** to **2.7.7**.


<details>
  <summary>Changelog</summary>
  
  
   ### 2.7.7
   ```
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Cleanup of the cursor results assignment code, which might have solved
  double free and inconsistencies in concurrent usage (🎟`346, 384`).
- Wheel package compiled against OpenSSL 1.0.2q.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/psycopg2
  - Changelog: https://pyup.io/changelogs/psycopg2/
  - Homepage: http://initd.org/psycopg/
</details>





### Update [pyasn1-modules](https://pypi.org/project/pyasn1-modules) from **0.2.3** to **0.2.4**.


*The bot wasn't able to find a changelog for this release. [Got an idea?](https://github.com/pyupio/changelogs/issues/new)*

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pyasn1-modules
  - Changelog: https://pyup.io/changelogs/pyasn1-modules/
  - Repo: https://github.com/etingof/pyasn1-modules
</details>





### Update [pytest-django](https://pypi.org/project/pytest-django) from **3.4.5** to **3.4.7**.


<details>
  <summary>Changelog</summary>
  
  
   ### 3.4.7
   ```
   ------------------

Bugfixes
^^^^^^^^

* Fix disabling/handling of unittest methods with pytest 4.2+ (700)
   ```
   
  
  
   ### 3.4.6
   ```
   ------------------

Bugfixes
^^^^^^^^

* django_find_project: add cwd as fallback always (690)

Misc
^^^^

* Enable tests for Django 2.2 and add classifier (693)
* Disallow pytest 4.2.0 in ``install_requires`` (697)
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pytest-django
  - Changelog: https://pyup.io/changelogs/pytest-django/
  - Docs: https://pytest-django.readthedocs.io/
</details>





### Update [pytest](https://pypi.org/project/pytest) from **4.1.1** to **4.2.0**.


<details>
  <summary>Changelog</summary>
  
  
   ### 4.2.0
   ```
   =========================

Features
--------

- `3094 &lt;https://github.com/pytest-dev/pytest/issues/3094&gt;`_: `Class xunit-style &lt;https://docs.pytest.org/en/latest/xunit_setup.html&gt;`__ functions and methods
  now obey the scope of *autouse* fixtures.

  This fixes a number of surprising issues like ``setup_method`` being called before session-scoped
  autouse fixtures (see `517 &lt;https://github.com/pytest-dev/pytest/issues/517&gt;`__ for an example).


- `4627 &lt;https://github.com/pytest-dev/pytest/issues/4627&gt;`_: Display a message at the end of the test session when running under Python 2.7 and 3.4 that pytest 5.0 will no longer
  support those Python versions.


- `4660 &lt;https://github.com/pytest-dev/pytest/issues/4660&gt;`_: The number of *selected* tests now are also displayed when the ``-k`` or ``-m`` flags are used.


- `4688 &lt;https://github.com/pytest-dev/pytest/issues/4688&gt;`_: ``pytest_report_teststatus`` hook now can also receive a ``config`` parameter.


- `4691 &lt;https://github.com/pytest-dev/pytest/issues/4691&gt;`_: ``pytest_terminal_summary`` hook now can also receive a ``config`` parameter.



Bug Fixes
---------

- `3547 &lt;https://github.com/pytest-dev/pytest/issues/3547&gt;`_: ``--junitxml`` can emit XML compatible with Jenkins xUnit.
  ``junit_family`` INI option accepts ``legacy|xunit1``, which produces old style output, and ``xunit2`` that conforms more strictly to https://github.com/jenkinsci/xunit-plugin/blob/xunit-2.3.2/src/main/resources/org/jenkinsci/plugins/xunit/types/model/xsd/junit-10.xsd


- `4280 &lt;https://github.com/pytest-dev/pytest/issues/4280&gt;`_: Improve quitting from pdb, especially with ``--trace``.

  Using ``q[quit]`` after ``pdb.set_trace()`` will quit pytest also.


- `4402 &lt;https://github.com/pytest-dev/pytest/issues/4402&gt;`_: Warning summary now groups warnings by message instead of by test id.

  This makes the output more compact and better conveys the general idea of how much code is
  actually generating warnings, instead of how many tests call that code.


- `4536 &lt;https://github.com/pytest-dev/pytest/issues/4536&gt;`_: ``monkeypatch.delattr`` handles class descriptors like ``staticmethod``/``classmethod``.


- `4649 &lt;https://github.com/pytest-dev/pytest/issues/4649&gt;`_: Restore marks being considered keywords for keyword expressions.


- `4653 &lt;https://github.com/pytest-dev/pytest/issues/4653&gt;`_: ``tmp_path`` fixture and other related ones provides resolved path (a.k.a real path)


- `4667 &lt;https://github.com/pytest-dev/pytest/issues/4667&gt;`_: ``pytest_terminal_summary`` uses result from ``pytest_report_teststatus`` hook, rather than hardcoded strings.


- `4669 &lt;https://github.com/pytest-dev/pytest/issues/4669&gt;`_: Correctly handle ``unittest.SkipTest`` exception containing non-ascii characters on Python 2.


- `4680 &lt;https://github.com/pytest-dev/pytest/issues/4680&gt;`_: Ensure the ``tmpdir`` and the ``tmp_path`` fixtures are the same folder.


- `4681 &lt;https://github.com/pytest-dev/pytest/issues/4681&gt;`_: Ensure ``tmp_path`` is always a real path.



Trivial/Internal Changes
------------------------

- `4643 &lt;https://github.com/pytest-dev/pytest/issues/4643&gt;`_: Use ``a.item()`` instead of the deprecated ``np.asscalar(a)`` in ``pytest.approx``.

  ``np.asscalar`` has been `deprecated &lt;https://github.com/numpy/numpy/blob/master/doc/release/1.16.0-notes.rstnew-deprecations&gt;`__ in ``numpy 1.16.``.


- `4657 &lt;https://github.com/pytest-dev/pytest/issues/4657&gt;`_: Copy saferepr from pylib
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pytest
  - Changelog: https://pyup.io/changelogs/pytest/
  - Homepage: https://docs.pytest.org/en/latest/
</details>





### Update [pytest-mock](https://pypi.org/project/pytest-mock) from **1.10.0** to **1.10.1**.


*The bot wasn't able to find a changelog for this release. [Got an idea?](https://github.com/pyupio/changelogs/issues/new)*

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pytest-mock
  - Changelog: https://pyup.io/changelogs/pytest-mock/
  - Repo: https://github.com/pytest-dev/pytest-mock/
</details>





### Update [Sphinx](https://pypi.org/project/Sphinx) from **1.8.3** to **1.8.4**.


<details>
  <summary>Changelog</summary>
  
  
   ### 1.8.4
   ```
   =====================================

Bugs fixed
----------

* 3707: latex: no bold checkmark (✔) available.
* 5605: with the documentation language set to Chinese, English words could not
  be searched.
* 5889: LaTeX: user ``numfig_format`` is stripped of spaces and may cause
  build failure
* C++, fix hyperlinks for declarations involving east cv-qualifiers.
* 5755: C++, fix duplicate declaration error on function templates with constraints
  in the return type.
* C++, parse unary right fold expressions and binary fold expressions.
* pycode could not handle egg files on windows
* 5928: KeyError: &#39;DOCUTILSCONFIG&#39; when running build
* 5936: LaTeX: PDF build broken by inclusion of image taller than page height
  in an admonition
* 5231: &quot;make html&quot; does not read and build &quot;po&quot; files in &quot;locale&quot; dir
* 5954: ``:scale:`` image option may break PDF build if image in an admonition
* 5966: mathjax has not been loaded on incremental build
* 5960: LaTeX: modified PDF layout since September 2018 TeXLive update of
  :file:`parskip.sty`
* 5948: LaTeX: duplicated labels are generated for sections
* 5958: versionadded directive causes crash with Python 3.5.0
* 5995: autodoc: autodoc_mock_imports conflict with metaclass on Python 3.7
* 5871: texinfo: a section title ``.`` is not allowed
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/sphinx
  - Changelog: https://pyup.io/changelogs/sphinx/
  - Homepage: http://sphinx-doc.org/
</details>





### Update [pip](https://pypi.org/project/pip) from **18.1** to **19.0.1**.


<details>
  <summary>Changelog</summary>
  
  
   ### 19.0
   ```
   =================

Deprecations and Removals
-------------------------

- Deprecate support for Python 3.4 (`6106 &lt;https://github.com/pypa/pip/issues/6106&gt;`_)
- Start printing a warning for Python 2.7 to warn of impending Python 2.7 End-of-life and
  prompt users to start migrating to Python 3. (`6148 &lt;https://github.com/pypa/pip/issues/6148&gt;`_)
- Remove the deprecated ``--process-dependency-links`` option. (`6060 &lt;https://github.com/pypa/pip/issues/6060&gt;`_)
- Remove the deprecated SVN editable detection based on dependency links
  during freeze. (`5866 &lt;https://github.com/pypa/pip/issues/5866&gt;`_)

Features
--------

- Implement PEP 517 (allow projects to specify a build backend via pyproject.toml). (`5743 &lt;https://github.com/pypa/pip/issues/5743&gt;`_)
- Implement manylinux2010 platform tag support.  manylinux2010 is the successor
  to manylinux1.  It allows carefully compiled binary wheels to be installed
  on compatible Linux platforms. (`5008 &lt;https://github.com/pypa/pip/issues/5008&gt;`_)
- Improve build isolation: handle ``.pth`` files, so namespace packages are correctly supported under Python 3.2 and earlier. (`5656 &lt;https://github.com/pypa/pip/issues/5656&gt;`_)
- Include the package name in a freeze warning if the package is not installed. (`5943 &lt;https://github.com/pypa/pip/issues/5943&gt;`_)
- Warn when dropping an ``--[extra-]index-url`` value that points to an existing local directory. (`5827 &lt;https://github.com/pypa/pip/issues/5827&gt;`_)
- Prefix pip&#39;s ``--log`` file lines with their timestamp. (`6141 &lt;https://github.com/pypa/pip/issues/6141&gt;`_)

Bug Fixes
---------

- Avoid creating excessively long temporary paths when uninstalling packages. (`3055 &lt;https://github.com/pypa/pip/issues/3055&gt;`_)
- Redact the password from the URL in various log messages. (`4746 &lt;https://github.com/pypa/pip/issues/4746&gt;`_, `6124 &lt;https://github.com/pypa/pip/issues/6124&gt;`_)
- Avoid creating excessively long temporary paths when uninstalling packages. (`3055 &lt;https://github.com/pypa/pip/issues/3055&gt;`_)
- Avoid printing a stack trace when given an invalid requirement. (`5147 &lt;https://github.com/pypa/pip/issues/5147&gt;`_)
- Present 401 warning if username/password do not work for URL (`4833 &lt;https://github.com/pypa/pip/issues/4833&gt;`_)
- Handle ``requests.exceptions.RetryError`` raised in ``PackageFinder`` that was causing pip to fail silently when some indexes were unreachable. (`5270 &lt;https://github.com/pypa/pip/issues/5270&gt;`_, `5483 &lt;https://github.com/pypa/pip/issues/5483&gt;`_)
- Handle a broken stdout pipe more gracefully (e.g. when running ``pip list | head``). (`4170 &lt;https://github.com/pypa/pip/issues/4170&gt;`_)
- Fix crash from setting ``PIP_NO_CACHE_DIR=yes``. (`5385 &lt;https://github.com/pypa/pip/issues/5385&gt;`_)
- Fix crash from unparseable requirements when checking installed packages. (`5839 &lt;https://github.com/pypa/pip/issues/5839&gt;`_)
- Fix content type detection if a directory named like an archive is used as a package source. (`5838 &lt;https://github.com/pypa/pip/issues/5838&gt;`_)
- Fix listing of outdated packages that are not dependencies of installed packages in ``pip list --outdated --not-required`` (`5737 &lt;https://github.com/pypa/pip/issues/5737&gt;`_)
- Fix sorting ``TypeError`` in ``move_wheel_files()`` when installing some packages. (`5868 &lt;https://github.com/pypa/pip/issues/5868&gt;`_)
- Fix support for invoking pip using ``python src/pip ...``. (`5841 &lt;https://github.com/pypa/pip/issues/5841&gt;`_)
- Greatly reduce memory usage when installing wheels containing large files. (`5848 &lt;https://github.com/pypa/pip/issues/5848&gt;`_)
- Editable non-VCS installs now freeze as editable. (`5031 &lt;https://github.com/pypa/pip/issues/5031&gt;`_)
- Editable Git installs without a remote now freeze as editable. (`4759 &lt;https://github.com/pypa/pip/issues/4759&gt;`_)
- Canonicalize sdist file names so they can be matched to a canonicalized package name passed to ``pip install``. (`5870 &lt;https://github.com/pypa/pip/issues/5870&gt;`_)
- Properly decode special characters in SVN URL credentials. (`5968 &lt;https://github.com/pypa/pip/issues/5968&gt;`_)
- Make ``PIP_NO_CACHE_DIR`` disable the cache also for truthy values like ``&quot;true&quot;``, ``&quot;yes&quot;``, ``&quot;1&quot;``, etc. (`5735 &lt;https://github.com/pypa/pip/issues/5735&gt;`_)

Vendored Libraries
------------------

- Include license text of vendored 3rd party libraries. (`5213 &lt;https://github.com/pypa/pip/issues/5213&gt;`_)
- Update certifi to 2018.11.29
- Update colorama to 0.4.1
- Update distlib to 0.2.8
- Update idna to 2.8
- Update packaging to 19.0
- Update pep517 to 0.5.0
- Update pkg_resources to 40.6.3 (via setuptools)
- Update pyparsing to 2.3.1
- Update pytoml to 0.1.20
- Update requests to 2.21.0
- Update six to 1.12.0
- Update urllib3 to 1.24.1

Improved Documentation
----------------------

- Include the Vendoring Policy in the documentation. (`5958 &lt;https://github.com/pypa/pip/issues/5958&gt;`_)
- Add instructions for running pip from source to Development documentation. (`5949 &lt;https://github.com/pypa/pip/issues/5949&gt;`_)
- Remove references to removed ``egg=&lt;name&gt;-&lt;version&gt;`` functionality (`5888 &lt;https://github.com/pypa/pip/issues/5888&gt;`_)
- Fix omission of command name in HTML usage documentation (`5984 &lt;https://github.com/pypa/pip/issues/5984&gt;`_)
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pip
  - Changelog: https://pyup.io/changelogs/pip/
  - Homepage: https://pip.pypa.io/
</details>







Co-authored-by: pyup-bot <github-bot@pyup.io>
Co-authored-by: Peter Bengtsson <mail@peterbe.com>
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