Mailing List Archived Message #42

From: "Dave Yeo" <> Full Headers
Undecoded message
Subject: Re: [GNU Ports] Assertion error with pip building
Date: Fri, 30 Sep 2022 19:45:17 -0700
To: GNU Ports for eCS Mailing List <>

On 09/30/22 07:18 PM, Lewis G Rosenthal wrote:

For a project (Privoxy), I got involved in building Mbed TLS
( Mbed TLS seems to
require the Jinja2 Pyhthon module (

Unfortunately, pip (well, gcc, more likely) is having a hard time
building wheel, as a prereq for MarkupCode, which itself is a prereq for

I've hackishly worked around the problem by removing line 91 from

assert preserve_mode and preserve_times and not preserve_symlinks

What I'm failing to understand, however, is why the assertion fails in
the first place. It seems perfectly reasonable, unless I'm missing
something. Before I open a ticket for bww about this, I thought I might
mention it here, in case anyone has any ideas.


Here's a bit of the output (mind the wrapping):

Wonder about it not wanting to write to your $HOME directory, seems to fail with copy_tree

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