With Python 3.10 eventlet==0.31.0 breaking the application (RM #7006)

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Issue migrated from Redmine: https://redmine.postgresql.org/issues/7006
Originally created by Rahul Shirsat at 2021-11-17 08:28:51 UTC.

When trying with Python 3.10 with eventlet 0.31.0, it breaks with -

Traceback (most recent call last):
  File "", line 1, in 
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/__init__.py", line 17, in 
    from eventlet import convenience
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/convenience.py", line 7, in 
    from eventlet.green import socket
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/green/socket.py", line 4, in 
    __import__('eventlet.green._socket_nodns')
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/green/_socket_nodns.py", line 11, in 
    from eventlet import greenio
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/greenio/__init__.py", line 3, in 
    from eventlet.greenio.base import *  # noqa
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/greenio/base.py", line 32, in 
    socket_timeout = eventlet.timeout.wrap_is_timeout(socket.timeout)
  File "/data/data/com.termux/files/usr/lib/python3.10/site-packages/eventlet/timeout.py", line 166, in wrap_is_timeout
    base.is_timeout = property(lambda _: True)
TypeError: cannot set 'is_timeout' attribute of immutable type 'TimeoutError'

Above issue is fixed in the eventlet/eventlet#715.

Work around was done trying with eventlet master dependency -

• https://github.com/eventlet/eventlet/archive/master.zip

And then with -

• git+git://github.com/eventlet/eventlet.git@15d3c24

With the latest commit id 15d3c24 pgAdmin wheel is failing.

Approaches to solve -

1. Need to find a way to apply commit id appropriately for pgadmin wheel to generate successfully.
2. Directly use the latest release version of eventlet (not yet released)

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-1
Originally created by Rahul Shirsat at 2021-11-17 08:33:18 UTC.

Redmine ticket header update:

Name	Old Value	New Value
Status changed	New	In Progress

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-2
Originally created by Rahul Shirsat at 2021-11-17 13:24:01 UTC.

New eventlet dependency is out (v0.33.0) and used to resolve the issue.

PIP wheel build is resolved for Python 3.10 when using eventlet v0.33.0

• PIP wheel created with no issues on Python 3.10

Overall other basic testing includes -

1. PSQL
2. Query tool
3. Server mode internal login

Tested on various python versions -

1. 3.10.0
2. 3.7.12
3. 3.8.12
4. 3.9.7

OS involved in testing -
MacOS Big Sur v11.0.1

No issues found so far with above scenarios.

Patch sent!

Redmine ticket header update:

Name	Old Value	New Value
Start Date changed	2021-11-17	2021-11-15

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-3
Originally created by Rahul Shirsat at 2021-11-18 07:07:14 UTC.

Applied in changeset commit:5b99646798a58be2c5edbc7ad5440498e6c01efa.

Redmine ticket header update:

Name	Old Value	New Value
Done Ratio changed	0	90
Status changed	In Progress	In Testing

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-4
Originally created by Akshay Joshi at 2021-11-18 07:08:29 UTC.

Redmine ticket header update:

Name	Old Value	New Value
Fixed Version changed		6.3

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-5
Originally created by Akshay Joshi at 2021-11-24 10:35:22 UTC.

Redmine ticket header update:

Name	Old Value	New Value
Sprint changed	EDB Sprint 104	EDB Sprint 105

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-6
Originally created by Fahar Abbas at 2021-12-01 06:45:07 UTC.

Redmine ticket header update:

Name	Old Value	New Value
Assigned To changed	Rahul Shirsat	Fahar Abbas

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-7
Originally created by Akshay Joshi at 2021-12-08 10:34:40 UTC.

Redmine ticket header update:

Name	Old Value	New Value
Sprint changed	EDB Sprint 105	EDB Sprint 106

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Comment migrated from Redmine: https://redmine.postgresql.org/issues/7006#note-8
Originally created by Fahar Abbas at 2021-12-16 11:01:38 UTC.

This is resolved in the candidate build for 6.3 Release.

Redmine ticket header update:

Name	Old Value	New Value
Done Ratio changed	90	100
Status changed	In Testing	Resolved

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Issue closed on Redmine.