How to skip import in dry mode?

[djasa]

I would like to be able to run behave --dry -f steps.usage on machines that aren't expected to run the actual scenarios and thus don't need all the runtime dependencies. What's the cleanest way to find out behave's dry_run value from within features/environment.py or a module that the environment.py loads, so I could do something like this?

from behave import some_behave_submodule

if not some_behave_submodule.dry_run:
    import wet_only_dependency

[jenisys]

Such a functionality is currently not supported (on module level) while loading the environment-file and the step-modules.
In addition, I do not think that this is not such a good idea. It is a HACK in my opinion (using the dry-run mode and having a partially usable workspace are two different things).

If you need such a functionality, you can easily support your use case by using a special environment variable, like:

# -- EXAMPLE bash-like shell is used
$ BEHAVE_SLIM_MODE=ON behave --dry -f steps.usage
...

# -- FILE: features/environment.py
import os
BEHAVE_SLIM_MODE_ENABLED = os.environ.get("BEHAVE_SLIM_MODE", "OFF") == "ON"
if not BEHAVE_SLIM_MODE_ENABLED:
    # -- NORMAL CASE: Import all needed modules and parts.
    ...
else:
    ...  # Whatever