Revert "pip version"

This reverts commit c26853987c9245a4a9fd61413f5fed5ec9178fb4.
Revert "2.6test"

This reverts commit 7e6f75d68bc7453a680a97eb5da5ed0b441d7bbd.
Revert "2.6 test"

This reverts commit 202393cdd6c68eded689b97a0f40dc9cf09436fd.