Python: Do not use `is`/`is not` with literals
- This is now a
SyntaxWarning
in Python 3.8+.
https://adamj.eu/tech/2020/01/21/why-does-python-3-8-syntaxwarning-for-is-literal/
Backport: release
Edited by Lisandro Dalcin
SyntaxWarning
in Python 3.8+.https://adamj.eu/tech/2020/01/21/why-does-python-3-8-syntaxwarning-for-is-literal/
Backport: release