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pythonstringlisttrailing

return trailing set of nums from string python

How can I return the trailing set of numbers from a list of strings?

mylist = ['kys_q1a2','kys_q3a20','kys_q2889b244','sonyps3_q92c288888']

expected result: 

[2, 20, 244, 288888]

My failed attempt:

for item in mylist:
    print item[-1]

Context:

Each item in the list represents question name and consist of 2 parts:

  1. question name and number: "kys_q1"
  2. question element name and number: "a2"

I've tried to show the various ways they can be shown.

Solution

  • You can use regex:

    >>> import re
>>> r = re.compile(r'\d+$')
>>> [int(m.group()) for m in (r.search(item) for item in mylist) if m]
[2, 20, 244, 288888]