#1 build fails with python 3.7

[Anthon van der Neut]

I am in the process of upgrading python to 3.7 for Alpine Linux, but get into an error when running.python3 setup.py build:

sys.argv ['setup.py', 'build']
Warning: 'keywords' should be a list, got type 'NoneType'
Traceback (most recent call last):
  File "setup.py", line 922, in <module>
    main()
  File "setup.py", line 910, in main
    setup(**kw)
  File "/usr/lib/python3.7/site-packages/setuptools/__init__.py", line 145, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.7/distutils/core.py", line 108, in setup
    _setup_distribution = dist = klass(attrs)
  File "/usr/lib/python3.7/site-packages/setuptools/dist.py", line 447, in __init__
    k: v for k, v in attrs.items()
  File "/usr/lib/python3.7/distutils/dist.py", line 267, in __init__
    getattr(self.metadata, "set_" + key)(val)
  File "/usr/lib/python3.7/distutils/dist.py", line 1203, in set_keywords
    self.keywords = _ensure_list(value, 'keywords')
  File "/usr/lib/python3.7/distutils/dist.py", line 40, in _ensure_list
    value = list(value)
TypeError: 'NoneType' object is not iterable

(originally posted on 2019-04-15 at 08:21:19 by ncopa <ncopa@bitbucket>)

[Anthon van der Neut]

None
(originally posted on 2019-04-15 at 08:21:48 by ncopa <ncopa@bitbucket>)

[Anthon van der Neut]

• status set to on hold

I cannot reproduce this:

$ /opt/python/3.7/bin/python -m venv /tmp/pathlib_issue1
$ source /tmp/pathlib_issue1/bin/activate
(pathlib_issue1) $ pip install -U pip
Looking in indexes: https://pypi.org/simple, http://localhost:4040/anthon/dev/+simple/
Requirement already up-to-date: pip in /tmp/pathlib_issue1/lib/python3.7/site-packages (19.0.3)
(pathlib_issue1) $ python --version
Python 3.7.3
(pathlib_issue1) $ pip install -U ruamel.std.pathlib
Looking in indexes: https://pypi.org/simple, http://localhost:4040/anthon/dev/+simple/
Collecting ruamel.std.pathlib
  Using cached https://files.pythonhosted.org/packages/8c/44/cbe416a864949348b63fc944278bf97905e8edf6a0323e350f05ce87b24e/ruamel.std.pathlib-0.6.3-py2.py3-none-any.whl
Installing collected packages: ruamel.std.pathlib
Successfully installed ruamel.std.pathlib-0.6.3
(pathlib_issue1) $ deactivate
$ rm -rf /tmp/pathlib_issue1/

Make sure the pip and setuptools in your (virtual) environment are up-to-date. Retry this in a clean virtualenv as above and include the output of pip list ran after you get the error (assuming it persists), and the output of python --version

(originally posted on 2019-04-15 at 08:47:24)

[Anthon van der Neut]

Using cached https://files.pythonhosted.org/packages/8c/44/cbe416a864949348b63fc944278bf97905e8edf6a0323e350f05ce87b24e/ruamel.std.pathlib-0.6.3-py2.py3-none-any.whl

Does this use the setup.py?

What happens if you do python3 setup.py build?

I was not able to reproduce with pip either.

(originally posted on 2019-04-15 at 10:25:24 by ncopa <ncopa@bitbucket>)

[Anthon van der Neut]

I am now using this as a workaround:

diff --git a/__init__.py b/__init__.py
index 3f4ace5..9e71492 100644
--- a/__init__.py
+++ b/__init__.py
@@ -14,6 +14,7 @@ _package_data = dict(
     extras_require={
         ':python_version<="3.4"': ['pathlib2', ],
     },
+    keywords='',
     license='MIT License',
     universal=True,
     tox=dict(

(originally posted on 2019-04-15 at 10:26:21 by ncopa <ncopa@bitbucket>)