Cleanup

[elacuesta]

Several unrelated cleanups:

• Remove from future import print_function
• Always use importlib.metadata instead of pkg_resources
• Replace deprecated utcnow calls
• Remove object parent class
• Modernize super() calls
• Remove python2-only tests
• Always use argparse

[elacuesta]

Technically not exactly the same, the new version adds +00:00:

In [19]: dt.now(timezone.utc).isoformat()
Out[19]: '2026-02-25T16:09:38.206121+00:00'

In [20]: dt.utcnow().isoformat()
<ipython-input-20-cac1a3b575b4>:1: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
  dt.utcnow().isoformat()
Out[20]: '2026-02-25T16:09:39.256359'

It could easily be updated to remove that, however I don't think that's a big deal.

[Gallaecio]

I think removing deprecation warnings is kind of a big deal, I would go for it.

Going forward, I think we should eventually make tests running with the latest version of everything (deps and Python) fail in case of warnings.

[elacuesta]

I meant that having the additional +00:00 is not a big deal

[elacuesta]

Current minimum Python is 3.10, which always includes importlib.metadata

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.25%. Comparing base (7aa5711) to head (11412f8).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #104      +/-   ##
==========================================
+ Coverage   88.65%   89.25%   +0.59%     
==========================================
  Files          14       14              
  Lines         873      856      -17     
==========================================
- Hits          774      764      -10     
+ Misses         99       92       -7     

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[elacuesta]

Current minimum Scrapy is 2.7, which always uses argparse.

[Gallaecio]

I read somewhere, cannot find it now, a recommendation to import datetime as dt and datetime.datetime as datetime (or use dt.datetime, which would avoid confusion). What do you think?

[elacuesta]

Yeah I think I read the same thing and just implemented it wrong, import datetime as dt makes for better namespacing with dt.datetime 😄

[Gallaecio]

Some of these changes could have been addressed automatically by Ruff’s UP rules. Maybe we should do something like scrapinghub/spidermon#468 in this repository soon in the future.