Python extension methods

Question

OK, in C# we have something like:

public static string Destroy(this string s) { 
    return \"\";
}

So basically, when you have a string you ca

Answer 1

You can change the built-in classes by monkey-patching with the help of forbidden fruit

But installing forbidden fruit requires a C compiler and unrestricted environment so it probably will not work or needs hard effort to run on Google App Engine, Heroku, etc.

I changed the behaviour of unicode class in Python 2.7 for a Turkish i,I uppercase/lowercase problem by this library.

# -*- coding: utf8 -*-
# Redesigned by @guneysus

import __builtin__
from forbiddenfruit import curse

lcase_table = tuple(u'abcçdefgğhıijklmnoöprsştuüvyz')
ucase_table = tuple(u'ABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZ')


def upper(data):
    data = data.replace('i',u'İ')
    data = data.replace(u'ı',u'I')
    result = ''
    for char in data:
        try:
            char_index = lcase_table.index(char)
            ucase_char = ucase_table[char_index]
        except:
            ucase_char = char
        result += ucase_char
    return result

curse(__builtin__.unicode, 'upper', upper)
class unicode_tr(unicode):
    """For Backward compatibility"""
    def __init__(self, arg):
        super(unicode_tr, self).__init__(*args, **kwargs)

if __name__ == '__main__':
    print u'istanbul'.upper()