remove n characters from string python

1line = line.strip('\n')
2line = line.strip('\t')

1a_string = a_string.rstrip("\n")

1mylist = []
2# Assuming that you have loaded data into a lines variable. 
3for line in lines:
4    mylist.append(line.strip().split('\t')

1example_string = "Hello there"
2
3def remove_chars(n, string):
4    list_of_chars_in_string = [char for char in string] 
5    
6    for num in range(n):
7        list_of_chars_in_string.pop() # Removes last n characters in string
8    
9    new_string = ''.join(list_of_chars_in_string)
10    return new_string