Documentation

The SyntaxWarning appears only once during the pyc compilation, but I can't find this information in the documentation.

This is quite confusing for anyone trying to fix a SyntaxWarning. I noticed other warnings have descriptions like "ignored by default." Adding this information could help reduce confusion.

Related PR: #122844

Linked PRs

• gh-123858: Improve Doc: SyntaxWarning is emitted during bytecode generation #122844