python magic

magic.py

# flaten a list of lists
[y for x in list for y in x]

# transform month to int
['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Oct', 'Sep', 'Nov', 'Dec'].index(m) + 1

# generate part of a slug from a name
slug = re.sub('[^\w\d]+', '-', name).strip('-').lower()

# check if it's a sequence (of numbers)
l[1:] == [i + 1 for i in l[:-1]]

# list inversion
 l[::-1]