Remove Python 2 classifier

[rayluo]

This change should have been included in Portalocker 2.0.0 release. If we removed it at that time, it might have prevented Python 2.x environments from incorrectly pulling in an incompatible Portalocker 2.x and causing failure. (The MSAL Extensions' build pipeline currently runs into such a problem, I'll find a workaround for it, but it would still be good to make the following change here.)

[coveralls]

Coverage remained the same at 100.0% when pulling 5a23e40 on rayluo:patch-1 into 0f420c8 on WoLpH:develop.

[codecov]

Codecov Report

Merging #67 (5a23e40) into develop (0f420c8) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           develop       #67   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          209       209           
  Branches        16        16           
=========================================
  Hits           209       209           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0f420c8...5a23e40. Read the comment docs.

[wolph]

That is indeed silly, thanks for the patch!

[wolph]

I've released a new version by the way, so it shouldn't be an issue if you use 2.3.1 or above

[rayluo]

Hi Rick, thanks for your quick response and releasing a new version. It turns out, my changes in this PR was only good enough. Sorry for my inexperience on this situation (quoted from here):

Although the list of classifiers is often used to declare what Python versions a project supports, this information is only used for searching & browsing projects on PyPI, not for installing projects. To actually restrict what Python versions a project can be installed on, use the python_requires argument.

Let me know if you want me to send out a new PR for that. I created #69 for that.