[issue20692] Tutorial section 9.4 and FAQ: how to call a method on an int

[R. David Murray]

R. David Murray added the comment:

I might tweak a couple words for flow, but it looks good.  I do wonder about the repetition of the bit about parenthesis or whitespace that now exists.  I wonder if the first occurrence of it should now be dropped.

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<http://bugs.python.org/issue20692>
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