brettfreer

def remove_trailing_zeros(s):
    while s[-1] == '0':
        s = s[:-1]
    return s

brettfreer

def remove_leading_zeros(s):
    while s[0] == '0':
        s = s[1:]
    return s

brettfreer

def remove_spaces(s):
    return s.replace(' ', '')

brettfreer

import itertools

def remove_duplicate(s):
    return ''.join(ch for ch, _ in itertools.groupby(s))

brettfreer

def swap(s, i, j):
    return ''.join((s[:i], s[j], s[i+1:j], s[i], s[j+1:]))

brettfreer

from fractions import gcd

def eulers_totient(n):
    p = 0
    for k in range(1, n+1):
        if gcd(n,k) == 1:
            p += 1
    return p

brettfreer

import operator

def max_value(m):
    return  max(m.iteritems(), key=operator.itemgetter(1))[0] 

brettfreer

def GCD(a, b):
    if b == 0:
        return a
    else:
        return GCD(b, a%b)

gcd = reduce(lambda x, y: GCD(x, y), A)

brettfreer

from itertools import combinations

def f(A):
    for p in combinations(A, 2):
            return p[0], p[1]

brettfreer

#!/bin/sh
#
# Expire and delete inactive linux users
#

# check this before running!
exclude_users="keepme|metoo|daemon|adm|lp|sync|shutdown|halt|mail|news|uucp|operator|man|postmaster|smmsp|portage|nobody|sshd|cron|ntp|messagebus|mysql|apache|haldaemon|ftp|postfix|dhcp|ntop|fetchmail|squid|hsqldb|tomcat"

remove_period="548" # 18 months