Question

I want to extract all the elements of a list from the first non-numeric element:

input = [u'12', u'23', u'hello', u'15', u'guys']

I want:

output = [u'hello', u'15', u'guys']

A non-pythonic version would be:

input_list = [u'12', u'23', u'hello', u'15', u'guys']

non_numeric_found=False
res = []
for e in input_list:
    if not non_numeric_found and e.isnumeric():
        continue
    non_numeric_found=True
    res.append(e)

Any suggestion for a better implementation of this?

Answer 1

You can use itertools.dropwhile:

import itertools
input_list = [u'12', u'23', u'hello', u'15', u'guys']
res = list(itertools.dropwhile(lambda s: s.isdigit(), input_list))