Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Martin =?UTF-8?Q?Sch=C3=B6=C3=B6n?= Newsgroups: comp.lang.python Subject: Re: Conda create with python version fails me Date: 17 Nov 2025 22:14:20 GMT Organization: @ Home Lines: 51 Message-ID: References: <87zf8qdxm5.fsf@zedat.fu-berlin.de> X-Trace: individual.net EJ3JnpKlaLYsd7SzkJGbgQgY7ZbRNF8N6S+XHUxgIfuqD5ZlWs Cancel-Lock: sha1:c0zt7RCPJVa3IFZ8zj+defrgzq8= sha256:z2yLkAW0wg5Zp+k1QpEQXKy/WxNsw/vie8FXYMQmuB8= User-Agent: slrn/1.0.3 (Linux) Xref: csiph.com comp.lang.python:197585 Den 2025-11-14 skrev Stefan Ram : > Martin =?UTF-8?Q?Sch=C3=B6=C3=B6n?= wrote or quoted: >>If I try to specify a python version I don't get a new environment. The >>error message I get is: >>"The following packages are missing from the target environment: >> - python=3.10" >> (if I asked for version 3.10) > > I'm not educated in Conda. But here are some wild and untested > guesses what could be done: > Your conda know-how is most likely superior to mine :-) > conda search python > > This might list the Python versions available. > Yields an error message very similar to the one cited above. > If the desired version does not appear, adding a channel known > to host older versions might help, like: > > conda create -n test python=3.10 -c conda-forge Bingo! This works for me. > > . It might help to update Conda: > > conda update conda > Was already up-to-date. Didn't bother testing the following. Later maybe. > . This should clear the Conda cache, but I don't know what you might > lose by doing it: > > conda clean --all > > . Check out your conda base and user PATH variables, and prioritize > Conda environments over system-wide Python installations. > > Check your system's networking/firewall configuration doesn't block > Conda's access to remote repositories. > > You could also try to require a more specific version you have, > like for example, "python=3.10.4", instead of, "python=3.10". > Many thanks. /Martin