String slugification in Python

Question

I am in search of the best way to "slugify" string what "slug" is, and my current solution is based on this recipe

I have changed it a little bit to:

s = 'String to slugify'

slug = unicodedata.normalize('NFKD', s)
slug = slug.encode('ascii', 'ignore').lower()
slug = re.sub(r'[^a-z0-9]+', '-', slug).strip('-')
slug = re.sub(r'[-]+', '-', slug)

Anyone see any problems with this code? It is working fine, but maybe I am missing something or you know a better way?

Answer 1

You might consider changing the last line to

slug=re.sub(r'--+',r'-',slug)

since the pattern [-]+ is no different than -+, and you don't really care about matching just one hyphen, only two or more.

But, of course, this is quite minor.

Answer 2

def slugify(value):
    """
    Converts to lowercase, removes non-word characters (alphanumerics and
    underscores) and converts spaces to hyphens. Also strips leading and
    trailing whitespace.
    """
    value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore').decode('ascii')
    value = re.sub('[^\w\s-]', '', value).strip().lower()
    return mark_safe(re.sub('[-\s]+', '-', value))
slugify = allow_lazy(slugify, six.text_type)

This is the slugify function present in django.utils.text This should suffice your requirement.

Answer 3

There is python package named awesome-slugify:

pip install awesome-slugify

Works like this:

from slugify import slugify

slugify('one kožušček')  # one-kozuscek

awesome-slugify github page

Answer 4

Unidecode is good; however, be careful: unidecode is GPL. If this license doesn't fit then use this one