use eventlet server, werkzeug 2.1 compat #430
Merged
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CHANGELOG.md
, or an entry is not needed for this changeSummary of changes
Add a dependency on eventlet. Flask-SocketIO uses this instead of the Werkzeug development server if it is installed. Flask-SocketIO recommends eventlet for performance as well.
Remove a line (now unneeded) that caused the Werkzeug development server to crash with Werkzeug 2.1.
fixes #425
Test plan
Run the develop command, observe that the server starts as expected.