On Mon, Nov 27, 2017 at 10:00:01AM -0500, Adam Van Ymeren wrote: > Leo Famulari writes: > There is also a pull request pending from someone else that updates > pyton-axolotl to use a newer python cryptography library rather than the > deprecated python-pycrypto library. That would also fix this issue and > is a much better long term fix but also a more intrusive change. I noticed that as well. Pycrypto is no longer maintained and has an extremely serious bug that was never fixed in a released version: https://github.com/dlitz/pycrypto/issues/176 And the author seems to implicitly agree that people should stop using it: https://github.com/dlitz/pycrypto/issues/173 So I added a TODO comment to the package, saying that we should remove it: https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/python-crypto.scm?id=12a130b0118c3f56e6337e011dc4a89f2671359a#n186 So, I recommend being careful how you use any package that depends on pycrypto.