A little script that attempts to fix the awful naming scheme of the Brains On! podcast.

renamebrains.py

'''A little script that attempts to fix the awful naming scheme of the Brains
On! podcast.'''

import os
import glob
import eyed3
import re

def new_name(filename, mp3_date, title):
    """Gives a new filename starting with the eyed3 date and then the title
    (if there is one)."""
    reserved = '<>::"/\|?*'
    if title:
        title = re.sub('[{}]'.format(reserved), '', title)
    if not title:
        return '{}_no_title.mp3'.format(mp3_date)
    else:
        return '{}_{}.mp3'.format(mp3_date,title)

def rename_files(filenames, new_names):
    for f, n in zip(filenames, new_names):
        os.rename(f, n)

def redun_name_check(name2check, names):
    """Returns an int of the number of occurences of the name within
    names"""
    i = 0
    for n in names:
        if n == name2check:
            i += 1
    return i        

d = r'I:\Podcasts\[brains]brains on! science podcast for kid\temp'
os.chdir(d)
r = re.compile(r'(?<=[^0-9][_|~])[0-9]{8}')
fs = glob.glob('*.mp3')
dates = [m.group(0) for l in fs for m in [r.search(l)] if m]
titles = []
for f, m in zip(fs, dates):
    titles.append(eyed3.load(f).tag.title)
newnames = []
for i, (f, d, t) in enumerate(zip(fs, dates, titles)):
    newname = new_name(f, d, t)
    occurances = redun_name_check(newname, newnames)
    if occurances:
        newname = newname[:8] + '_{}'.format(occurances) + newname[8:]
    newnames.append(newname)
#with open('names.csv', 'w') as myfile:
#    for f, n in zip(fs, newnames):
#        myfile.write('{},{}\n'.format(f, n))
rename_files(fs, newnames)