how to remove special characters from list in python

Question

i have a list like

['hold',  'summit',  'septemb',  '8',  '9',  '.',  "'s",  'nancy-amelia',   'sydney',  '.',  'energy',  ',']

I want to remove all integers, 'dot' , quotes in "s", 'Comma', 'double quote' from such list in one go Or I want to only keep the string entries only i.e hold, summit etc. in the list and remove all other things

Thank in advance

Answer 1

>>> lst=['hold',  'summit',  'septemb',  '8',  '9',  '.',  "'s",  'nancy-amelia',   'sydney',  '.',  'energy',  ',']
>>> import re
>>> list(filter(lambda x:x, map(lambda x:re.sub(r'[^A-Za-z]', '', x), lst)))
['hold', 'summit', 'septemb', 's', 'nancyamelia', 'sydney', 'energy']
>>>