Usar endswith con múltiples extensiones

Estoy tratando de detectar archivos con una lista de extensiones.

ext = [".3g2", ".3gp", ".asf", ".asx", ".avi", ".flv", \
                        ".m2ts", ".mkv", ".mov", ".mp4", ".mpg", ".mpeg", \
                        ".rm", ".swf", ".vob", ".wmv"]
if file.endswith(ext): # how to use the list ?
   command 1
elif file.endswith(""): # it should be a folder
   command 2
elif file.endswith(".other"): # not a video, not a folder
   command 3
Author: Trilarion, 2014-04-02
Source

2 answers

Use una tupla para ello.

>>> ext = [".3g2", ".3gp", ".asf", ".asx", ".avi", ".flv", \
                        ".m2ts", ".mkv", ".mov", ".mp4", ".mpg", ".mpeg", \
                        ".rm", ".swf", ".vob", ".wmv"]

>>> ".wmv".endswith(tuple(ext))
True
>>> ".rand".endswith(tuple(ext))
False

En lugar de convertir cada vez, simplemente conviértalo a tupla una vez.

 60
Author: Sukrit Kalra,
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2014-04-02 13:20:40

¿No podrías haberlo convertido en una tupla en primer lugar? ¿Por qué tienes que hacer:

>>> ".wmv".endswith(tuple(ext))

¿No podrías simplemente hacer: 

>>> ext = (".3g2", ".3gp", ".asf", ".asx", ".avi", ".flv", \
                        ".m2ts", ".mkv", ".mov", ".mp4", ".mpg", ".mpeg", \
                        ".rm", ".swf", ".vob", ".wmv")
 6
Author: Patrick,
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2016-12-02 15:00:41