使用 rstrip("\\n") 从 readlines 中删除 \\n

Question

im reading 2 files per lines that contains strings and grouping per other one here in my code im grooping 1 line from proxyfile with 3 lines from websitefiles major problem when i try to print the lines from 2nd file i cant remove the \\n

i have tried to use rstrip("\\n") but i got this exception

AttributeError: 'tuple' object has no attribute 'rstrip'

this is my code :

proxy = open("proxy.txt",'r')
readproxy = proxy.readlines()

sites = open("websites.txt",'r')
readsites = sites.readlines()

for i,j in zip(readproxy, zip(*(iter(readsites),) * 3)):

    try:
        i = i.rstrip("\n")
        #j = j.rstrip("\n")
        print(i,j)
    except ValueError:
        print 'whatever'

i removed the \\n from "i" successfully , but coudent remove it from "j"

this screenshot can explain all i think

Answer 1

A tuple doesn't have a method that magically propagates to all string elements.

To do that you have to apply rstrip for all items in a list comprehension to create a list .

j = [x.rstrip("\n") for x in j]

that rebuilds a list with items stripped. Convert to tuple if really needed:

j = tuple(x.rstrip("\n") for x in j)

note that you could avoid this post processing by doing:

readsites = sites.read().splitlines()

instead of sites.readlines() since splitlines splits into lines while removing the termination character if no argument is specified. The only drawback is in the case when the file is huge. In that case, you could encounter a memory issue (memory needed by read + split is doubled). In which case, you could do:

with open("websites.txt",'r') as sites:
    readsites = [line.rstrip("\n") for line in sites]