Strip() function 与 readlines()

Question

With the strip() function the \n does not strip and instead changes the string (I don't know how to describe it, test for yourself)

lines = []
line = str(pw.readlines())
print(line)
x = line.strip("\n")
x = line.strip("\t")
lines.append(x)
print(lines)enter code here

edit:

here is the output I get from debugging:

here is the original string: ['pqrm \n', 'google \n', '8'] After I try to strip it I get: ["['pqrm \n', 'google \n', '8']"] Sorry not the best with python or stackoverflow

Answer 1

You are sending the list of values as a string, instead of each value one by one. So try this...

lines = []
for line in pw.readlines():
    x = line.strip("\n").strip("\t")
    lines.append(x)

print(lines)

Answer 2

One can use re.sub, to get rid of newlines, tabs, spaces.

import re

st = "['pqrm \n', 'google \n', '8']"

print(re.sub(r'[\n\t\s]+','', st))

['pqrm','google','8']