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filename clean up
import os.path
import string
VALID_CHARS = "_%s%s" % (string.ascii_letters, string.digits)
def clean_filename_part(part):
return ''.join(c for c in part if c in VALID_CHARS)
def clean_filename(fname):
root, ext = os.path.splitext(fname)
root = clean_filename_part(root)
ext = clean_filename_part(ext)
fmt = '{root}.{ext}'
if not ext:
fmt = '{root}'
if not root:
root = 'noroot'
return fmt.format(root=root, ext=ext)
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