[solved] OpenSesame with Pygaze has a circular import in Mac.

rrr

Hello,

I have some suggestion about using OpenSeasame with Pygaze in MacOS.
Probably, I found some critical problem.

When using OpenSesame in Mac, it seems that Pygaze is imported from '/usr/local/lib/python2.7/site-packages/' even if the path of python is made to other directories.
So, there is no error (e.g., OSError: [Errno 2] No such file or directory: 'resources/fonts') after copying Pygaze into it.

Almost problem can be solved, but it may still has a different bug as below .

Traceback:
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libopensesame/inline_script.py", line 102, in run
    self.experiment.python_workspace._exec(self.crun)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libopensesame/python_workspace.py", line 160, in _exec
    exec(bytecode, self._globals)
  File "<string>", line 6, in <module>
  File "/usr/local/lib/python2.7/site-packages/pygaze/__init__.py", line 22, in <module>
    from pygaze.settings import settings
  File "/usr/local/lib/python2.7/site-packages/pygaze/settings.py", line 59, in <module>
    settings = Settings()
  File "/usr/local/lib/python2.7/site-packages/pygaze/settings.py", line 27, in __init__
    from pygaze import defaults
ImportError: cannot import name defaults

It shows that Pygaze includes a circular import.

sebastiaan

Hi,

I'm not familiar with your Python environment, but as a general tip: Python just takes the first matching thing from the Python path. In your case, this is apparently pygaze from site-packages. If you want to use a different pygaze, you can either remove the one from site-packages, or adjust the PYTHON_PATH. There's a neat (hidden) trick in OpenSesame to do this. If you create a file called environment.yaml (in the working direction of OpenSesame) you can specify where OpenSesame looks for Python modules and plugins. (The custom Python path will be prepended, so it will take precedence over the existing Python path.)

PYTHON_PATH: /my/path/to/pygaze
OPENSESAME_PLUGIN_PATH: /my/path/to/plugins
OPENSESAME_EXTENSION_PATH: /my/path/to/extensions

It shows that Pygaze includes a circular import.

Where do you see a circular import?

Just as a disclaimer: You are in pretty rough territory here: PyGaze 0.6.0 is under active development, and neither Edwin nor me uses Mac OS. But it's great that you're using it, because it will help us catch bugs. But

Cheers,
Sebastiaan

rrr

Hello,

Thank you for your reply, and sorry for my many questions.

I am trying to make a 'environment.yaml'.
Which the 'plugins' should I use? Where should I put 'opensesame_plugins'?
There are several plugins folder; plugins in Pygaze and in OpenSesame.

Best,

sebastiaan

The plugins that are bundled with PyGaze (in the folder opensesame_plugins) need to be somewhere OpenSesame can find them. To do so, you can add that folder (the full path to opensesame_plugins to the OPENSESAME_PLUGIN_PATH). Something like:

OPENSESAME_PLUGIN_PATH: /my/path/to/pygaze/opensesame_plugins

Does that make sense?

rrr

Hello sebastiaan,

I added the path to OPENSESAME_PLUGIN_PATH, but I was not able to open Pygaze eye-tracking template in OpenSeasame because the error occurred when I tried to open it.

File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libqtopensesame/qtopensesame.py", line 677, in open_file
    experiment_path=os.path.dirname(path))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libqtopensesame/items/experiment.py", line 80, in __init__
    fullscreen=None)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libopensesame/experiment.py", line 168, in __init__
    item.item.__init__(self, name, self, string)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libopensesame/item.py", line 68, in __init__
    self.from_string(string)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libopensesame/experiment.py", line 325, in from_string
    self.items.new(item_type, item_name, def_str)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libqtopensesame/misc/qtitem_store.py", line 83, in new
    item = super(qtitem_store, self).new(_type, name=name, script=script)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSesame-release-3.0.2/libopensesame/item_store.py", line 176, in new
    fromlist=[u'dummy'])
ImportError: No module named pygaze_drift_correct

I already changed the codes of 'pygaze_init.py'; from dummy to Eyelink.

Should I change any other setting?

Best

rrr

Hello sebastiaan,

I succeeded to use OpenSeasame with Pygaze in MacOS!
I needed to move the plugins ('pygaze_init', 'pygaze_log'...) to '/opensesame/plugins'.
It doesn't work when I moved it to other plugins directories.

Next, I try to use Pygaze in Expyriment script.
How can I do that?
Is it possible to add pygaze functions to my script of Expyriment, and copy it in the 'inline_script'?

Best,

rrr

Hello,

I was able to do the eye tracking!
Pygaze functions (e.g., eyetracker....()) on 'inline_script' worked fine.

Thank you very much for your kind advice.
I hope this helps for all user of MacOS.

Best,

sebastiaan

Good to hear!