[question] Handling Python library dependencies

[liarokapisv]

Lately I've been trying to package https://github.com/nanopb/nanopb. The problem is that it requires that the "protobuf" python library be installed. Is this something that conan can reasonably handle without resorting to system_requirements? If I have to go the system_requirements route is there any support for controlling the behaviour using say python virtual environments? Ideally I was thinking that I could add the library as a system_requirements, and activate a python virtualenv in which I could install the requirements but conan does not provide any suppotr of changing the system_requirements environment at this moment. Is there any good way forward or should I just bite the bullet and go with system_requirements and instead sandbox the whole conan environment ?

[Croydon]

See also

• Add the packaging and mako Python modules conan-docker-tools#554
• [mesa] Install python mesa on-the-fly jwillikers/conan-center-index#15
• python-mako: Add recipe #23098
• python-packaging 24.0 #23091

@uilianries The decisions and explanations of the Conan team are currently shattered all over the place. Could this please be documented more officially?