File hash calculator in Python3, mainly useful for win32.
Runs in Python 3.4 and up.
I decided that I really should verify downloads and not trust them blindly anymore. I didn’t have a win32 hash calculator installed, and without one, I couldn’t verify any of them.
Luckily, I had Python already and its standard library has hash functions.
I still haven’t downloaded a ‘real’ hash verifier.
Abstract:
[python.exe] hashsum.py [-a ALGO] FILENAME
Examples for Windows:
py -3 hashsum.py hashsum.py
py -3 hashsum.py -a sha256 README.md
py -3 hashsum.py -a md5 LICENSE
Examples for Linux/OS X:
python3 hashsum.py hashsum.py
python3 hashsum.py -a sha256 README.md
python3 hashsum.py -a md5 LICENSE
The -a option indicates the hash algorithm to use, such as “sha1”, “sha256”, or “sha384”.
Technically, it takes any of the hashlib hash constructors.
“md5” is possible, but considered weak.
If you’re on Linux/OS X you may have sha1sum/sha256sum (or just shasum) already.
Some examples for those commands:
sha1sum hashsum.py
sha256sum README.md
shasum -a 256 LICENSE
Since this is barely even a thing: MIT.