build: fix/upgrade geoip2 requirements where possible

[dgw]

Split geoip2 requirement into ranges based on Python release.

Capped maxminddb version on old Pythons now that v2.0 dropped them.

Checklist

• I have read CONTRIBUTING.md
• I can and do license this contribution under the EFLv2
• No issues are reported by make qa (runs make quality and make test)
• I have tested the functionality of the things this change touches

Notes

I'm planning to cut a 7.0.5 release with this unless any @sopel-irc/rockstars strenuously object. We're still too far off from finishing 7.1 to wait for that release. This is going to cause issues with new installs of 7.0.4.

[dgw]

I'm aware that the build currently fails due to other test changes that need to be backported onto 7.0.x. I'll do those once people like @Exirel have a chance to weigh in on actually releasing this as a v7.0.5.

[Exirel]

Yeah let's do this, it's great!

[mascalzone]

Hello.
I don't know if this is the right place, but I didn't find anything on the net that could help me on geoip for sopel.
i installed sopel 7.0.4 on vps, ubuntu 18, everything works except the ip plugin.
I report the error here:

[2020-07-26 00:18:58,386] sopel.bot            ERROR    - Error loading ip: invalid
syntax (__init__.py, line 25)
Traceback (most recent call last):
  File "/home/server/.local/lib/python2.7/site-packages/sopel/bot.py", line 206,
  in setup_plugins
    plugin.load()
  File "/home/server/.local/lib/python2.7/site-packages/sopel/plugins/handlers.py",
  line 246, in load
    self._module = importlib.import_module(self.module_name)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/home/server/.local/lib/python2.7/site-packages/sopel/modules/ip.py",
  line 18, in <module>
    import geoip2.database
  File "/home/server/.local/lib/python2.7/site-packages/geoip2/database.py",
  line 9, in <module>
    import maxminddb
  File "/home/server/.local/lib/python2.7/site-packages/maxminddb/__init__.py",
  line 25
    database: Union[AnyStr, int, os.PathLike, IO], mode: int = MODE_AUTO
            ^
SyntaxError: invalid syntax

hoping that I can get help, on how to solve the problem, perhaps with a steep to steep explanation, because I'm not a lunux expert. Thank you so much.

[dgw]

@mascalzone Temporary workaround: use pip to downgrade to maxminddb<2.0.

Or await Sopel 7.0.5, which will include this patch (intended to fix the issue you're seeing) and should be out yet this weekend.

[mascalzone]

sorry, please, I'm completely ignorant on linux.
How do I do what you say?
Can you write me the complete command and the various steeps?
And I have another question: why does everything work perfectly on an ubuntu16 with sopel 6.0.9?

[mascalzone]

I gave pip install maxminddb

server@lubuntu:~/sopel-7.0.4$ pip install maxminddb
/home/server/.local/lib/python2.7/site-packages/cryptography/__init__.py:39:
CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core
team. Support for it is now deprecated in cryptography, and will be removed in a
future release.
  CryptographyDeprecationWarning,
Collecting maxminddb
Installing collected packages: maxminddb
Successfully installed maxminddb-2.0.0

but nothing has changed.

Sopel always starts with the ip module in error
[2020-07-26 01:14:34,135] sopel.bot INFO - Registered 41 plugins, 1 failed, 0 disabled

[dgw]

SO MANY things have changed in Sopel since 6.0.9, I couldn't even begin to list them here. The changes in library versions between Ubuntu 16 and 18 are even greater.

I must assume you've used pip to install sopel following the install instructions.

If so, run sudo pip install maxminddb<2.0 to get an older version that's still compatible with your release of Python.

---

Alternatively, Ubuntu 18 should have a new enough Python 3 release for you to use that instead and not get the error, with sudo pip3 install sopel. (Note that the next major version of Sopel, 8.0, will stop supporting Python 2 as well.)

[mascalzone]

I did: pip3 install -e.
and now everything works perfectly. Thank you.