[docs] [issue19953] __iadd__() doc not strictly correct

[R. David Murray]

R. David Murray added the comment:

I wonder if it would be worth adding a sentence that says, "In certain situations, augmented assignment can result in unexpected errors (see http://docs.python.org/3/faq/programming.html#id44)."

----------
nosy: +r.david.murray

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19953>
_______________________________________