Slugify function to use in Flask (Python)

app.py

_slugify_strip_re = re.compile(r'[^\w\s-]')
_slugify_hyphenate_re = re.compile(r'[-\s]+')
def slugify(value):
    """
    Normalizes string, converts to lowercase, removes non-alpha characters,
    and converts spaces to hyphens.
    
    From Django's "django/template/defaultfilters.py".
    """
    import unicodedata
    if not isinstance(value, unicode):
        value = unicode(value)
    value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore')
    value = unicode(_slugify_strip_re.sub('', value).strip().lower())
    return _slugify_hyphenate_re.sub('-', value)


@app.template_filter('slugify')
def _slugify(string):
    if not string:
        return ""
    return slugify(string)



# then in your template use: {{myname|slugify}}

font: http://code.activestate.com/recipes/577257-slugify-make-a-string-usable-in-a-url-or-filename/

https://github.com/django/django/blob/a6b3938afc0204093b5356ade2be30b461a698c5/django/utils/text.py#L394