Python sync: build from source fails on missing README file

[liorsve]

Describe the bug

Description

When building from the sdist, the build fails because setup.py tries to read README.md at module-level import time, but the file isn't present in the expected location during isolated builds.

This is probably a sub issue of - #4884

Expected Behavior

build success

Current Behavior

Build fails with error:

FileNotFoundError: [Errno 2] No such file or directory: '/tmp/build-via-sdist-xxxxx/README.md'

Reproduction Steps

python3 dev.py build --client sync --wheel

Possible Solution

No response

Additional Information/Context

No response

Client version used

2.1.0+

Engine type and version

all

OS

all

Language

Python

Language Version

all

Cluster information

No response

Logs

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Other information

No response