Release variables when close()

[miurahr]

Improve #88

Signed-off-by: Hiroshi Miura miurahr@linux.com

[coveralls]

Coverage increased (+0.04%) to 83.702% when pulling ae5b440 on patch-close-variables into b882294 on master.

[codecov]

Codecov Report

Merging #129 into master will increase coverage by 2.71%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #129      +/-   ##
==========================================
+ Coverage   80.75%   83.46%   +2.71%     
==========================================
  Files          11       11              
  Lines        2499     2782     +283     
  Branches      411      569     +158     
==========================================
+ Hits         2018     2322     +304     
+ Misses        346      338       -8     
+ Partials      135      122      -13     

Flag	Coverage Δ
#linux	83.46% <100.00%> (+2.71%)	⬆️
#mac	83.17% <100.00%> (+2.78%)	⬆️
#py36	83.13% <100.00%> (+2.79%)	⬆️
#py37	83.13% <100.00%> (+2.79%)	⬆️
#py38	83.16% <100.00%> (+2.79%)	⬆️
#pypy3	82.41% <100.00%> (+2.79%)	⬆️

Impacted Files	Coverage Δ
py7zr/py7zr.py	87.29% <100.00%> (+5.66%)	⬆️
py7zr/compression.py	95.88% <0.00%> (+3.40%)	⬆️
py7zr/extra.py	71.42% <0.00%> (+6.28%)	⬆️
py7zr/__init__.py	77.77% <0.00%> (+8.54%)	⬆️