Nick Coghlan added the comment:
Those are easy enough to check with strncmp() even in C, so we could make them
manageable by just including "<expr>" in the error message, rather than the
full text of the original statement.
That is:
Did you mean 'print(<expr>)'? # Default
Did you mean 'print(<expr>, file=<stream>)'? # starts with '>>'
Did you mean 'print(<expr>, end=' ')'? # ends with ','
That's basically correct even when printing multiple arguments, so I'd avoid
the temptation to detect commas within the line (particularly since they might
be inside a string).
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<http://bugs.python.org/issue30597>
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