How to get MD5 sum of a string using python?

You can do the following:

Python 2.x

import hashlib
print hashlib.md5("whatever your string is").hexdigest()

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Python 3.x

import hashlib
print(hashlib.md5("whatever your string is".encode('utf-8')).hexdigest())

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However in this case you’re probably better off using this helpful Python module for interacting with the Flickr API:

• http://stuvel.eu/flickrapi

… which will deal with the authentication for you.

Official documentation of hashlib