Closed issue by zenny on void-packages repository

https://github.com/void-linux/void-packages/issues/24239

Description:
Hi,

I just tried to `vpm upgrade` and got the following syntax error:

```
"is" with a literal. Did you mean "=="?
```

Details:

```
...
python3-3.8.5_1: configuring ...
Byte-compiling python code in usr/lib/python3.8...
usr/lib/python3.8/site-packages/enchant/checker/CmdLineChecker.py:163: SyntaxWarning:
"is" with a literal. Did you mean "=="?
  if index is 0:
usr/lib/python3.8/site-packages/tzlocal/unix.py:141: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  while start is not 0:
usr/lib/python3.8/site-packages/enchant/checker/CmdLineChecker.py:163: SyntaxWarning:
"is" with a literal. Did you mean "=="?
  if index is 0:
usr/lib/python3.8/site-packages/tzlocal/unix.py:141: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  while start is not 0:
Byte-compiling python3.8 code for module README.txt...
Updating ldconfig(8) cache...
python3-3.8.5_1: updated successfully.
python3-devel-3.8.5_1: configuring ...
python3-devel-3.8.5_1: updated successfully.
...
```