+++ /dev/null
-#! python
-
-__all__ = ('parse_url', 'isImageURL', 'unique', 'removeDups', 'xRemoveDups')
-
-IMAGE_EXTENSIONS = ('PNG', 'JPG', 'JPEG', 'BMP', 'GIF', 'SWF', 'TIF', 'TIFF')
-
-def parse_url(url):
- """Parses a url into a tuple of (hostname, directory, filename)."""
- return ('hostname', 'directory', 'filename')
-
-def isImageURL(url):
- """Checks if an filename is an image"""
- try:
- _, extension = url.rsplit('.', 1)
- except ValueError:
- # There was no '.' in the url
- return False
- else:
- return extension.upper() in IMAGE_EXTENSIONS
-
-def unique(l):
- list_iter = iter(l)
- last_item = list_iter.next()
- yield last_item
- for item in list_iter:
- if last_item != item:
- yield item
- last_item = item
-
-def removeDups(l):
- """Removes duplicates from the list (Note: The ordering of the list may change)"""
- return list(unique(sorted(l)))
-
-def xRemoveDups(l):
- """Removes duplicates from the list.
- Requires O(n) memory, objects must be hashable"""
- yielded = set()
- for elem in l:
- if elem in yielded:
- continue
- yielded.add(elem)
- yield elem