# image must be gif, jpeg, png, webp
if not file_type:
- if f is None:
- file_type = imghdr.what(filename) or mimetypes.guess_type(filename)[0]
- else:
- file_type = imghdr.what(filename, h=f.read()) or mimetypes.guess_type(filename)[0]
- f.seek(0) # Reset to beginning of file
-
+ h = None
+ if f is not None:
+ h = f.read(32)
+ f.seek(0)
+ file_type = imghdr.what(filename, h=h) or mimetypes.guess_type(filename)[0]
if file_type is None:
raise TweepError('Could not determine file type')
if file_type in ['gif', 'jpeg', 'png', 'webp']: