extracting numbers with decimal places from a string

Thomas 'PointedEars' Lahn PointedEars at web.de
Mon Jan 12 00:46:07 CET 2015

Joel Goldstick wrote:

> On Sun, Jan 11, 2015 at 6:12 PM, Thomas 'PointedEars' Lahn
> <PointedEars at web.de> wrote:
>> Joel Goldstick wrote:
>>> Am I missing something.
>>                        ^
>> […]
>> You are missing a leading space character because in the string the comma
>> was followed by one.
> I see that now.  Performing float on each element of the list will
> take care of that, or I guess .strip() on each first.

As I showed, .strip() is unnecessary.  But float() is always necessary for 
computing the sum and suffices indeed together with s.split() if s is just a 
comma-separated list of numeric strings with optional whitespace leading and 
trailing the comma:

  print(sum(map(lambda x: float(x), s.split(',')))

Please trim your quotes to the relevant minimum.


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