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Mention warnings about defining None.

This commit is contained in:
Guido van Rossum 2002-08-16 03:38:10 +00:00
parent b7164621fa
commit f808b891d6
1 changed files with 3 additions and 0 deletions
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@ -57,6 +57,9 @@ Type/class unification and new-style classes
Core and builtins
- Use of 'None' as a variable, argument or attribute name now
issues a SyntaxWarning. In the future, None may become a keyword.
- SET_LINENO is gone. co_lnotab is now consulted to determine when to
call the trace function. C code that accessed f_lineno should call
PyCode_Addr2Line instead (f_lineno is still there, but not kept up