folderCounter.py

import os, re

def filterdirs(folderpath):
  dirs = os.listdir(folderpath)
  pattern = re.compile('(.*)-(.*)--(.*)')
  dirlist = []
  for d in dirs:
    if d.startswith('0'):
      res = re.search(pattern, d)
      #if int(res.group(1)) > 9 and int(res.group(1)) < 160:
      if int(res.group(1)) < 160:
        dirlist.append(d)
  return sorted(dirlist)
  
folderpath = '/g/data/bio-it_centres_course/data/VSVG'
plates = filterdirs(folderpath)
print "plate number", len(plates)