Certbot crashes after update of python installed

Evilham contact at evilham.com
Mon Feb 22 07:20:43 UTC 2021

On dg., febr. 21 2021, John Levine wrote:

> It's telling you what the problem is:
>>    raise VersionConflict(dist, req).with_context(dependent_req)
>>pkg_resources.ContextualVersionConflict: (cryptography 2.9.2
>>Requirement.parse('cryptography>=3.2'), {'PyOpenSSL'})
> It now requires version 3.2 or newer of the python cryptography 
> package
> but the version in the ports and packages is only 2.9.2.
> You might drop a note to the person who maintains the 
> py-cryptography
> port to see if he wants help updating it, or if you're feeling 
> brave,
> you can use the python pip package manager to update it locally.
> (as root)
> # pkg install rust    # the crypto bits are written in rust
> # pip install -U cryptography
> # pkg lock py37-cryptography # tell freebsd package manager not 
> to downgrade it
> # pkg delete rust    # if you don't otherwise need rust, get 
> back 500MB
> I did this on FBSD 12.2 and it worked, leaving me with version 
> 3.4.6 of cryptography.

Not 100% sure if following would have a positive effect on the 
ports system, but it certainly would be useful for FreeBSD+pip 
users if someone has the bandwidth to get involved upstream (the 
Python cryptography project: https://github.com/pyca/cryptography) 
and help them publish wheels for FreeBSD.
That would mean, e.g. that pulling rust is not necessary for pip 
install cryptography.

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