Revert "Test gevent"

This reverts commit 5a0b3dda0426b9740bcae3207a136b0184e226c4.
Revert "Test gevent"

This reverts commit 4e79067fff9ea7b6ffc1dd1f76fff5a2e3647e4e.
Revert "Test gevent"

This reverts commit 18717680d9fe57ece43c5f66141b0f197b2f2d19.
Revert "Test gevent"

This reverts commit 7bbc0e71da1d409674b776da10801401378ab798.
Revert "Test gevent"

This reverts commit c9612a02fabd55ed44bdb65eaa69172ea511bbf1.
Revert "Test with gevent"

This reverts commit 7b4edc0abb41ecb7952013f7577c10f578c49ed8.