how to count the number of files in a directory using python

1import os
2len(os.listdir(directory))

1import os
2len([item for item in os.listdir(folderPath)])
3

1import os, os.path
2
3# simple version for working with CWD
4print len([name for name in os.listdir('.') if os.path.isfile(name)])
5
6# path joining version for other paths
7DIR = '/tmp'
8print len([name for name in os.listdir(DIR) if os.path.isfile(os.path.join(DIR, name))])
9