CODEWITHSUNDEEP
pythonregex
user483144
user483144

Reputation: 1441

Python regular expression problem

I need to do something in regex but I'm really not good at it, long time didn't do that .

/a/c/a.doc

I need to change it to 

\\a\\c\\a.doc

Please trying to do it by using regular expression in Python.

Upvotes: 1

Views: 681

Answers (5)

theReverseFlick
theReverseFlick

Reputation: 6044

'\\\'.join(r'/a/c/a.doc'.split("/"))

Upvotes: 0

Graeme Perrow
Graeme Perrow

Reputation: 57248

You can do it without regular expressions:

x = '/a/c/a.doc'
x = x.replace('/',r'\\')

But if you really want to use re:

x = re.sub('/', r'\\', x )

Upvotes: 1

guilin 桂林
guilin 桂林

Reputation: 17422

\\ is means "\\" or r"\\" ?

re.sub(r'/', r'\\', 'a/b/c')

use r'....' alwayse when you use regular expression.

Upvotes: 0

Cameron Laird
Cameron Laird

Reputation: 1075

I'm entirely in favor of helping user483144 distinguish "solution" from "regular expression", as the previous two answerers have already done. It occurs to me, moreover, that os.path.normpath() http://docs.python.org/library/os.path.html might be what he's really after.

Upvotes: 5

ghostdog74
ghostdog74

Reputation: 342373

why do you think you every solution to your problem needs regular expression??

>>> s="/a/c/a.doc"
>>> '\\'.join(s.split("/"))
'\\a\\c\\a.doc'

By the way, if you are going to change path separators, you may just as well use os.path.join

eg

mypath = os.path.join("C:\\","dir","dir1")

Python will choose the correct slash for you. Also, check out os.sep if you are interested.

Upvotes: 2

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