PyYAML as a runtime requirement or not?

[brunobord]

Hi,

I was looking to test severus as an alternative to gettext in a tiny pet project, and I simply installed it on a virtualenv via:

pip install severus

Then I've followed the readme and created a hello.py file with the following code:

from severus import Severus, language

T = Severus()

with language("fr"):
    print(T("Hello world!"))

but it raised the following exception: ModuleNotFoundError: No module named 'yaml'

In the pyproject.toml file, I see that pyyaml is a "dev" requirement: https://github.com/emmett-framework/severus/blob/master/pyproject.toml#L108

But it looks like it's... not.

So, either:

• pyyaml is a runtime requirement, so the pyproject.toml file should reflect this
• pyyaml should not be required to run a severus-based i18n, and importing severus objects should be possible without triggering an exception (I admit that this one involves a lot of work to handle conditional imports, etc)

[gi0baro]

So, either:

• pyyaml is a runtime requirement, so the pyproject.toml file should reflect this
• pyyaml should not be required to run a severus-based i18n, and importing severus objects should be possible without triggering an exception (I admit that this one involves a lot of work to handle conditional imports, etc)

Thank you for reporting this, and sorry for the mess, I probably should've checked this properly once I took this out of Emmett. As of today, the requirement is actually needed at runtime, so pyproject.toml should be fixed accordingly. Gonna release a patch version asap.

Probably that requirement can be made optional with some minor effort, and make the yaml loader optional. Gonna probably tackle that in the next minor release.

[brunobord]

that's great! many thanks!