[allura:tickets] #8386 review licenses of python dependencies

[Dave Brondsema <da...@brondsema.net>]

- **labels**: asf --> asf, licensing



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** [tickets:#8386] review licenses of python dependencies**

**Status:** closed
**Milestone:** v1.13.0
**Labels:** asf licensing 
**Created:** Fri Mar 26, 2021 03:45 PM UTC by Dave Brondsema
**Last Updated:** Mon May 17, 2021 03:07 PM UTC
**Owner:** Dave Brondsema


I came across https://pypi.org/project/liccheck/ and thought we should see what it reports for Allura.  With a .ini file like
```
[Licenses]
authorized_licenses:
        bsd
        new bsd
        bsd license
        new bsd license
        simplified bsd
        apache
        apache 2.0
        apache software license
        Apache Software
        mit
        mit license
        python software foundation license
```

output is:
```
$ liccheck -r requirements.txt -s lic.ini
gathering licenses...
94 packages and dependencies.
check authorized packages...
81 packages.
check unknown packages...
13 packages.
    certifi (2019.6.16): ['MPL-2.0', 'Mozilla Public License 2.0 (MPL 2.0)']
      dependencies:
          certifi << requests << pysolr
          certifi << requests << requests-oauthlib
    chardet (3.0.4): ['GNU Library or Lesser General Public License (LGPL)', 'LGPL']
      dependencies:
          chardet << requests << pysolr
          chardet << requests << requests-oauthlib
    colander (1.7.0): ['BSD-derived (http://www.repoze.org/LICENSE.txt)']
      dependency:
          colander
    feedparser (5.2.1): UNKNOWN
      dependency:
          feedparser
    ipaddress (1.0.22): ['Python Software Foundation']
      dependency:
          ipaddress
    nose (1.3.7): ['GNU LGPL', 'GNU Library or Lesser General Public License (LGPL)']
      dependency:
          nose
    pexpect (4.7.0): ['ISC', 'ISC License (ISCL)']
      dependency:
          pexpect << ipython
    Pillow (6.2.2): ['Historical Permission Notice and Disclaimer (HPND)', 'HPND']
      dependency:
          Pillow
    ptyprocess (0.6.0): ['ISC License (ISCL)']
      dependency:
          ptyprocess << pexpect << ipython
    repoze.lru (0.7): ['BSD-derived (http://www.repoze.org/LICENSE.txt)']
      dependency:
          repoze.lru << TurboGears2
    simplegeneric (0.8.1): ['ZPL 2.1', 'Zope Public']
      dependency:
          simplegeneric << ipython
    translationstring (1.3): ['BSD-like (http://repoze.org/license.html)']
      dependency:
          translationstring << colander
    waitress (1.4.3): ['ZPL 2.1', 'Zope Public']
      dependency:
          waitress << WebTest
```

- MPL is ok according to https://apache.org/legal/resolved.html#category-b but should be labelled (in NOTICE or LICENSE)
- `chardet` LGPL is not good.  
    - we use it directly and requests lib uses it and doesn't intend to change https://github.com/psf/requests/issues/3389
    - chardet won't change their license: https://github.com/chardet/chardet/issues/36
    - alternatives: https://github.com/Ousret/charset_normalizer or https://github.com/PyYoshi/cChardet (MPL multi licensed? https://github.com/PyYoshi/cChardet/issues/54)
    - another ASF project has discussed a bit at https://github.com/apache/airflow/issues/10667
    - latest: https://github.com/psf/requests/pull/5797
- `nose` LGPL is not good
    - it is mostly a test runner, but we do import 'nose' modules within our tests
    - should switch to `pytest` anyway since nose isn't maintained
- BSD-derived, BSD-like, ZPL, ISC, HPND are a like BSD/MIT and should be fine
- `feedparser` is BSD 2-clause https://github.com/kurtmckee/feedparser/blob/develop/LICENSE



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