Adding period to name argument of Experiment modifies function names.

[cwitkowitz]

I've stumbled across a weird issue that occurs if I simply change Experiment('hello_config') to Experiment('hello_config.') in the following example (from the quickstart guide):

from sacred import Experiment

ex = Experiment('hello_config')

@ex.config
def my_config():
    recipient = "world"
    message = "Hello %s!" % recipient

@ex.automain
def my_main(message):
    print(message)

This results in the following error:

Usage:
  test.py [(with UPDATE...)] [options]
  test.py help [COMMAND]
  test.py (-h | --help)
  test.py COMMAND [(with UPDATE...)] [options]
Error: Command "my_main" not found. Available commands are: rint_config, rint_dependencies, ave_config, rint_named_configs, y_main

[thequilo]

Hey @cwitkowitz! Thanks for bringing this up! I remember that this issue, or at least something related to periods in experiment or config names, came already up some time ago (before I became a collaborator), but I don't remember which issue it was...

This is clearly not the desired behavior. But, what is desired here? Should it "just work" or should this become an error?

[cwitkowitz]

I think either solution would be fine, however, from a user-pointing perspective the experiment name is just a string, so it seems one should be able to specify any arbitrary string. The main problem is that the behavior is completely unexpected and hard to trace back to having a period in the config name. As far as I am aware, there is also nothing in the docs that indicates this can happen.