Can't import custom activation function to choose from in optimization

[GadL]

Before filing an issue, please make sure to tick the following boxes.

• [x] Make sure your issue hasn't been filed already. Use GitHub search or manually check the existing issues, also the closed ones. Also, make sure to check the FAQ section of our readme.

• [x] Install latest hyperas from GitHub: pip install git+git://github.com/maxpumperla/hyperas.git

• [x] Install latest hyperopt from GitHub: pip install git+git://github.com/hyperopt/hyperopt.git

• [x] We have continuous integration running with Travis and make sure the build stays "green". If, after installing test utilities with pip install pytest pytest-cov pep8 pytest-pep8, you can't successfully run python -m pytest there's very likely a problem on your side that should be addressed before creating an issue.

• [x] Create a gist containing your complete script, or a minimal version of it, that can be used to reproduce your issue. Also, add your full stack trace to that gist. In many cases your error message is enough to at least give some guidance.

[GadL]

It either says can't find it or can't find string, and I tried defining it in data.