Fix Python – How to hash a string into 8 digits?


Asked By – Bob Fang

Is there anyway that I can hash a random string into a 8 digit number without implementing any algorithms myself?

Now we will see solution for issue: How to hash a string into 8 digits?


Yes, you can use the built-in hashlib module or the built-in hash function. Then, chop-off the last eight digits using modulo operations or string slicing operations on the integer form of the hash:

>>> s = 'she sells sea shells by the sea shore'

>>> # Use hashlib
>>> import hashlib
>>> int(hashlib.sha1(s.encode("utf-8")).hexdigest(), 16) % (10 ** 8)

>>> # Use hash()
>>> abs(hash(s)) % (10 ** 8)

This question is answered By – Raymond Hettinger

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