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aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=bqalqq2j; dmarc=pass (policy=none) header.from=posteo.net; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -4.76 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=bqalqq2j; dmarc=pass (policy=none) header.from=posteo.net; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 316882D333 X-Spam-Score: -4.76 X-Migadu-Scanner: scn0.migadu.com X-TUID: UZxyuW+qkYcB Hello, I've been using a guix shell with a couple of python packages and it works fine, however I'd also like to keep the option of using a virtualenv if possible, the thing is I'm having problem running modules like numpy, that depend on non python dependencies. The error I get when I try to load numpy in a venv is: Importing the numpy C-extensions failed. This error can happen for many reasons, often due to issues with your setup or how NumPy was installed. and in the end: Original error was: libz.so.1: cannot open shared object file: No such file or directory I have tried installing zlib directly, also tried to add my default profile libs path to the venv PATH, but to no avail until now. How can I solve this? Or maybe someone can point me in the direction that I have to take to properly debug this. Best regards, Mateus Rodrigues