fix 3.6 support

[thehesiod]

pipenv was "upgrading" the python version :( Tons of test related stuff was actually broken in 3.6. Next major release we should drop 3.6 support

[codecov]

Codecov Report

Merging #936 (267072d) into master (d9e1438) will increase coverage by 0.13%.
The diff coverage is 92.68%.

@@            Coverage Diff             @@
##           master     #936      +/-   ##
==========================================
+ Coverage   86.64%   86.77%   +0.13%     
==========================================
  Files          52       55       +3     
  Lines        5272     5295      +23     
==========================================
+ Hits         4568     4595      +27     
+ Misses        704      700       -4     

Flag	Coverage Δ
unittests	86.77% <92.68%> (+0.13%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
tests/test_eventstreams.py	100.00% <ø> (+35.00%)	⬆️
tests/python3.8/test_eventstreams.py	17.64% <17.64%> (ø)
tests/boto_tests/test_credentials.py	97.28% <93.33%> (ø)
tests/boto_tests/test_utils.py	95.23% <95.23%> (ø)
aiobotocore/_helpers.py	100.00% <100.00%> (ø)
aiobotocore/utils.py	76.02% <100.00%> (-0.29%)	⬇️
aiobotocore/waiter.py	90.56% <100.00%> (+0.18%)	⬆️
tests/boto_tests/helpers.py	85.71% <100.00%> (ø)
tests/boto_tests/test_signers.py	100.00% <100.00%> (ø)
tests/conftest.py	91.87% <100.00%> (+0.14%)	⬆️
... and 11 more

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[lgtm-com]

This pull request introduces 2 alerts when merging f88d8eb into d9e1438 - view on LGTM.com

new alerts:

• 2 for Unused import

[lgtm-com]

This pull request introduces 2 alerts when merging c8a65ae into d9e1438 - view on LGTM.com

new alerts:

• 2 for Unused import

[thehesiod]

ok biting the bullet and installing py3.6 ;)

[lgtm-com]

This pull request introduces 2 alerts when merging 0d1b6db into d9e1438 - view on LGTM.com

new alerts:

• 2 for Unused import

[lgtm-com]

This pull request introduces 2 alerts when merging 267072d into d9e1438 - view on LGTM.com

new alerts:

• 2 for Unused import