[Backport maintenance/3.3.x] Fixed conditional import x.y causing possibly-used-before-assignment (#10240)

[jacobtylerwalls]

(cherry picked from commit 7b28cf4)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.84%. Comparing base (c28580b) to head (852d3cc).
Report is 38 commits behind head on maintenance/3.3.x.

Additional details and impacted files

@@                  Coverage Diff                  @@
##           maintenance/3.3.x   #10241      +/-   ##
=====================================================
+ Coverage              95.81%   95.84%   +0.03%     
=====================================================
  Files                    174      174              
  Lines                  18954    18980      +26     
=====================================================
+ Hits                   18160    18191      +31     
+ Misses                   794      789       -5     

Files with missing lines	Coverage Δ
pylint/checkers/variables.py	97.26% <ø> (ø)

... and 7 files with indirect coverage changes

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