Makes 10 digit phone number (US) pretty

phone_format_filter.py

### app.templatetags.default_filters.py

from django import template
register = template.Library()
 
@register.filter("phone_format")
def phone_format(value):
    """
    Returns pretty formatted 10 digit US phone number as string
    
    >>> phone_format('5558761234')
    (555) 876-12345
    
    In the Template:
    {{ object.phone|phone_format }}
    
    """
    
    find = ['(',')','-','+','']
    p = ''
    
    for n in find:
        p = value.replace(n,'')
    
    try:
        phone = "(%s) %s-%s" % (p[0:3], p[3:6], p[6:10])
    except:
        phone = value
    
    return phone