file_elements = video_element.findall(compat_xpath('./file'))
one = len(file_elements) == 1
for file_num, file_element in enumerate(file_elements, start=1):
file_elements = video_element.findall(compat_xpath('./file'))
one = len(file_elements) == 1
for file_num, file_element in enumerate(file_elements, start=1):