Replacing characters within a list

Question

I have to replace certain characters in each tuple in a list.I know how to do it with just a basic string.

import string
s = 'This:is:awesome'
ss = s.replace(':', '/')
print ss

However, how would I go about looping through a list?

import string
finalPathList = []
pathList = ['List of 10+ file path names']
for lines in pathList:
    ss = pathList.replace('\', '/')
    print ss
    finalPathList.append(ss)

All I need to do is go through each tuple of filenames, and replace all of the "\" 's with "/" 's.

Any help would be greatly appreciated!

As a side not you can't use `"\"`, use `"\\"` or better use raw strings. http://stackoverflow.com/questions/11168076/why-cant-i-end-a-raw-string-with-a — Ashwini Chaudhary, May 20 '13 at 18:23

Sukrit Kalra · Accepted Answer · 2013-05-20T18:20:58.743

3

Something like this?

>>> pathList = [r"C:\Users", r"C:\Documents", r"C:\Downloads\Test"]
>>> finalPathList = []
>>> for element in pathList:
          finalPathList.append(element.replace("\\", "/"))


>>> finalPathList
['C:/Users', 'C:/Documents', 'C:/Downloads/Test']

Or by using List Comprehension.

>>> finalPathList = [elem.replace("\\", "/") for elem in pathList]
>>> finalPathList
['C:/Users', 'C:/Documents', 'C:/Downloads/Test']

edited May 20 '13 at 18:20

answered May 20 '13 at 18:07

Sukrit Kalra

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+1 Use raw strings, else something like `"C:\test"` will result in unwanted results. – Ashwini Chaudhary May 20 '13 at 18:19

Ofiris · Answer 2 · 2013-05-20T18:16:03.187

2

finalPathList = map(lambda x: x.replace('\\', '/'), pathList)

map is a nice way to apply a function to each list item.

edited May 20 '13 at 18:16

answered May 20 '13 at 18:10

Ofiris

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Thanks for the comment! removed my mistake. – Ofiris May 20 '13 at 18:15

score 1 · Answer 3 · answered May 20 '13 at 18:16

1

Correcting your code...

finalPathList = []
pathList = ['List of 10+ file path names']
for lines in pathList:
    ss = lines.replace('\\', '/')
    print ss
    finalPathList.append(ss)

answered May 20 '13 at 18:16

cachorrocadi

29
2

Replacing characters within a list

3 Answers3