Remove a pattern in all strings in a list

Question

For example, if I have a list of strings

alist=['a_name1_1', 'a_name1_2', 'a_name1_3']

How do I get this:

alist_changed = ['a_n1_1', 'a_n1_2', 'a_n1_3']

Answer 1

If you are looking for something that actually needs to be "pattern" based then you can use python's re module and sub the regular expression pattern for what you want.

import re


alist=['a_name1_1', 'a_name1_2', 'a_name1_3']
alist_changed = []

pattern = r'_\w*_'

for x in alist:
    y = re.sub(pattern, '_n1_', x, 1)
    #print(y)
    alist_changed.append(y)


print(alist_changed)

Answer 2

alist_changed = [s.replace("ame", "") for s in alist]