Python - Bulk rename a directory of files

 
# I found myself with the need to rename my video 
# collection.  For some reason I decided that using 
# spaces in a file name is lame....underscores should 
# always be used.  After two or three files of manually 
# renaming I decided that python could do all the 
# work for me. 
 
import os
import glob
 
# My video collection is all matroska files.  So 
# the extension of them all is *.mkv format. 
files_to_change = '*.mkv' 
 
# new and old versions of a space 
lame_space = ' ';
cool_space = '_';
 
# use glob to gather a list of matching files 
for f in glob.glob(files_to_change):
        f2 = f
        f2 = f2.replace(lame_space, cool_space)
        # add a little status for instant gratification 
        print 'renaming: ', f, ' -> ', f2
        os.rename(f, f2)
 
print 'All Done' 
 
 
## my output: 
# 
# renaming:  Me at home.mkv  ->  Me_at_home.mkv 
# renaming:  Max in kid pool.mkv  ->  Max_in_kid_pool.mkv 
# ........ < and so on > 
# All Done 
 
 

Python - string stripping

# string manipulations
# striping characters out of strings

aUrl = "http://www.example.com"

# strip, lstrip, rstrip only remove characters
#   on the either edge (strip), the left edge (lstrip),
#   and the right edge(rstrip)
print aUrl.strip("htp:/w.com")

#outputs:
#   example

print aUrl.lstrip("htp:/")

#outputs:
#   www.example.com

print aUrl.rstrip(".com")

#outputs:
#   http://www.example

# to strip out all occurances
#   of a character use replace()
print aUrl.replace('m', "")

#outputs:
#   http://www.exaple.co

Python remove vowels from a sentence

# create a tuple with vowels....yes I include y as a vowel
vowels = 'a', 'e', 'i', 'o', 'u', 'y'

# movie quote for our sentence
sentence = "My name is Werner Brandes, my voice is my password, verify me."


# iterate through the tuple of vowels
for vowel in vowels:
    # replace the vowel with nothing

    sentence = sentence.replace(vowel, '')

# display the vowel-less sentence!
print sentence

'M nm s Wrnr Brnds, m vc s m psswrd, vrf m.'


# additional string functions: http://docs.python.org/library/stdtypes.html

# manipulate vowels to create pig latin or double dutch