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Asked: 2026-06-11T23:55:27+00:00

I want to serialize/deserialize md5 context. But I don’t know how to do it

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I want to serialize/deserialize md5 context. But I don’t know how to do it in Python.
Pseudocode of what I want to do.

import md5
# Start hash generation
m = md5.new()
m.update("Content")

# Serialize m
serialized_m = serialize(m)

# In another function/machine, deserialize m
# and continue hash generation
m2 = deserialize(serialized_m)
m2.update("More content")
m2.digest()

There are C++ libraries for this. Is there one for Python? Why doesn’t the md5 library support it? Are there security concerns? Thanks.

Edited:
I want to do this because for example, an HTTP server wants to accept streaming data in different HTTP requests. It would be convenient to serialize md5 context somehow between requests.

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1 Answer

  1. Editorial Team

    I asked Mr Guido V Rossum. He replied that “I don’t think there’s a way. However it might make a decent feature request. You could submit one to bugs.python.org.” So I did.

    http://bugs.python.org/issue16059

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