url 和图像类型的 Python 测试 [英] Python test for a url and image type

问题描述

在下面的代码中如何测试类型是url还是图像

In the following code how to test for if the type is url or if the type is an image

for dictionaries in d_dict:
  type  = dictionaries.get('type')
  if (type starts with http or https):
    logging.debug("type is url")
  else if type ends with .jpg or .png or .gif
    logging.debug("type is image")
  else:
     logging.debug("invalid type") 

推荐答案

使用正则表达式.

import re

r_url = re.compile(r"^https?:")
r_image = re.compile(r".*\.(jpg|png|gif)$")

for dictionaries in d_dict:
  type  = dictionaries.get('type')
  if r_url.match(type):
    logging.debug("type is url")
  else if r_image.match(type)
    logging.debug("type is image")
  else:
     logging.debug("invalid type") 

两点说明:type 是内置的，图片也可以从 URL 加载.

Two remarks: type is a builtin, and images could be loaded from an URL too.

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