Python/Django: How to remove extra white spaces & tabs from a string?

Question

I'm building a website with Python/Django. Users submit tags. Each tag can contain multiple words. Each tag has an ID number. I want to make sure tags that are formatted slightly differently are still being recognized as the same tag.

For example, if one user submitted the tag "electric guitar" and the other submitted "electric guitar" (2 white spaces between the 2 words) I want to be able to recognize they are the same tag.

How to I remove all the extra white spaces and tabs in this case? Thanks.

Answer 1

在任何空格上拆分，然后在单个空间上连接。

' '.join(s.split())

Answer 2

>>> import re
>>> re.sub(r'\s+', ' ', 'some   test with     ugly  whitespace')
'some test with ugly whitespace'

Answer 3

我会使用Django的slugify方法，它将空间压缩成一个短划线和其他有用的功能：

from django.template.defaultfilters import slugify

Answer 4

"electric guitar".split() will give you ['electric', 'guitar'] . So will "electric \\tguitar" .

Answer 5

This function removes everything which is not digit in a string. I use it all over the place.

def parseInt(string):
    if isinstance(string, (str, int, unicode)):
        try:
            digit = int(''.join([x for x in string if x.isdigit() ]))
        except ValueError:
            return False
        else:
            return digit
    else:
        return False   

Answer 6

There could be many white spaces like below:

var = "         This      is the example  of how to remove spaces   "

Just do simple task like, use replace function:

realVar = var.replace(" ",'')

Now the outpur would be:

Thisistheexampleofhowtoremovespaces 

Just Chill......... :-)