There is more work to do though, as many imports are still incorrect.
Also, there are still print statements

autopep8 -v -j 8 --max-line-length 120 --in-place --recursive

... and be able to run performance tests independently of the chosen performance test repo
Now all tests run fine locally

* travis configuration adjusted to hopefully work better than before

Performance traversal still fails when using git-python as standard repository.
It naturally wants a larger one. On travis these tests are skipped though.

Commandline was
autopep8 -j 8 --max-line-length 120 --in-place --recursive --exclude "*gitdb*,*async*" git/

W291 trailing whitespace

E301 expected 1 blank line, found 0
E302 expected 2 blank lines, found 1
E303 too many blank lines (n)

W191 indentation contains tabs
E221 multiple spaces before operator
E222 multiple spaces after operator
E225 missing whitespace around operator
E271 multiple spaces after keyword
W292 no newline at end of file
W293 blank line contains whitespace
W391 blank line at end of file

Two tests are failing in the latest git version, would have to dig into it