Django filter to convert Arabic numbers to Eastern Arabic numbers

convert_to_eastern_arabic_numerals.py

# -*- coding: utf-8 -*-
from django import template

register = template.Library()

@register.filter
def convert_to_eastern_arabic(value):
    """ Converts an arabic numeral (ex. 5817) to Eastern Arabic (ex. ٥٨١٧) """
    
    for c in value:
        try:
            eastern_arabic_number = "\u066%s" % int(c)
            value = value.replace(c, eastern_arabic_number.decode('unicode_escape'))
        except:
            pass
    return value

# ِExample
# print convert_to_eastern_arabic(u'123 اياد')

That's even better.

def convert_to_eastern_arabic(value):
    arabic_num = ''
    for c in value:
        if 0 <= int(c) < 10:
            eastern_arabic_number = "\u066%s" % c
            arabic_num += eastern_arabic_number
    return arabic_num.decode('unicode_escape')

Thanks!
I updated the gist to use your way but to also leave other characters in the string if they're not numbers.

I see, but it's not efficient to decode in every iteration especially on a large number. Also, never loop and edit value, some issues might happen, better keep it on the safe side. Try this:

def convert_to_eastern_arabic(value):
    arabic_num = ''
    for c in value:
        try:
            eastern_arabic_number = "\u066%s" % int(c)
            arabic_num += eastern_arabic_number
        except:
            arabic_num += c
    return arabic_num.decode('unicode_escape')

hey guys! when i try to add this filter i see this error :
eastern_arabic_number = "\u066%s" % int(c)
^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 0-4: truncated \uXXXX escape

any idea?