greenlet 0.4.17 breaks gevent (which breaks bottle)

[CrimsonGlory]

Maybe this is not the best place to post it.
In python python:3.8.2-buster, the update from 0.4.16 to 0.4.17 broke gevent 20.5.0, which broke bottle 0.12.18.

2020-10-01T20:13:07+00:00 172.18.0.1 api[1217]: Bottle v0.12.18 server starting up (using GeventServer())...
2020-10-01T20:13:07+00:00 172.18.0.1 api[1217]: Listening on http://1ea1b9232cea:4670/
2020-10-01T20:13:07+00:00 172.18.0.1 api[1217]: Hit Ctrl-C to quit.
2020-10-01T20:13:07+00:00 172.18.0.1 api[1217]: 
2020-10-01T20:13:07+00:00 172.18.0.1 api[1217]: <frozen importlib._bootstrap>:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject

The fix is to hardcode greenlet version
greenlet==0.4.16

[jamadden]

Thanks for the report, it's a duplicate of #178, among others.

You can (should) also upgrade gevent to a version that supports 0.4.17.

[CrimsonGlory]

Thanks. Upgrading gevent fixed the issue.