[solved] Importing Python modules on Android?

Comments

• flo

  December 2015 edited 11:42PM

  I tried to work around this issue by saving the content of the .csv file as a .py file. The content of the .py file is something like this:

  coord = [['-514', '-352'], ['-335', '0'], ['-181', '-2'], ['-168', '102'], ['-67', '104'], ['0', '234'], ['2', '-284'], ['160', '0'], ['328', '-2'], ['444', '174'], ['486', '2']]
  

  Then I use:

  exec( exp.get_file('practice_0.py')  )
  

  This, I hope, should produce a list called coord that contains my coordinates.

  The file practice_0.py is in the experiment's file pool. This gives me the following error, though:

  ---

  Traceback (also in debug window):
  File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/libopensesame/inline_script.py", line 150, in prepare
  File "/Applications/OpenSesame.app/Contents/Resources/lib/python2.7/libopensesame/python_workspace.py", line 111, in _exec
  File "", line 26, in
  File "", line 1
  /var/folders/7x/q_9tsb610gzcb3_b52fr85gw0000gn/T/tmpj5NFSD.opensesame_pool/practice_0.py
  ^
  SyntaxError: invalid syntax

  ---

  Something along these lines should work, right? What am I missing?

  Thanks!

  • Florian
• sebastiaan

  December 2015 edited 11:42PM

  Hi Florian,

  There are two questions here: The first is whether and how you can use the csv module on Android; the second is how you can execute a .py script from the file pool.

  First, the csv module is part of the Python standard library, so you should just be able to use it on Android. No problem there.

  Second, with exec() you execute a string of text that contains Python code. For example ...

  exec('print("hi!")')
  

  ... will print 'hi!'. What you're trying to do is execute a filename. The contents of the file are a Python script, of course, but the filename itself is not. Do you see? So, if anything, you'll want to do this:

  exp.python_workspace.run_file(pool['practice_0.py'])
  

  This will run the contents of practice_0.py in the Python workspace that is used by OpenSesame. (exec() will normally use its own workspace.)

  Cheers!
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• flo

  December 2015 edited December 2015

  Hi Sebastiaan,

  thank you for your time. You are right, I am mixing up two issues in the same thread, sorry about the mess.

  Importing the csv module

  It does run without any issues on my computer but not on the tablet. Here's the crash report from my testing yesterday:

  Launching /sdcard/Experiments/mirror tracing coordinates.opensesame.tar.gz
  openexp.sampler._legacy.init_sound(): sampling freq = 48000, buffer size = 1024
  experiment.run(): experiment started at Tue Dec  8 07:50:08 2015
  Traceback (most recent call last):
    File "opensesame/main.py", line 122, in main
    File "opensesame/libopensesame/experiment.py", line 390, in run
    File "opensesame/libopensesame/item_store.py", line 95, in execute
    File "opensesame/libopensesame/item_store.py", line 110, in run
    File "opensesame/libopensesame/sequence.py", line 49, in run
    File "opensesame/libopensesame/item_store.py", line 110, in run
    File "opensesame/libopensesame/inline_script.py", line 107, in run
  osexception: 
  Error while executing inline script
  
  item-stack: experiment[run].setup_script[run]
  exception type: ImportError
  exception message: No module named csv
  item: setup_script
  time: Tue Dec  8 07:50:08 2015
  phase: run
  
  Traceback:
    File "opensesame/libopensesame/inline_script.py", line 102, in run
    File "opensesame/libopensesame/python_workspace.py", line 160, in _exec
    File "<string>", line 6, in <module>
  ImportError: No module named csv
  

  By the way, I am also using the line "from random import shuffle" in my script and that doesn't give me any trouble (neither on my computer nor on the tablet). Not sure whether that's relevant...

  Executing strings of text as code

  Ahh, I understand the difference. Thank you. I still wasn't able to get it to work, though. OpenSesame tells me:

  AttributeError: 'python_workspace' object has no attribute 'run_file'

  Again, thank you!

  • Florian
• flo

  December 2015 edited December 2015

  EDIT: Okay, I am an idiot. Your line of code works like a charm - on the tablet.

  (I deleted the post I wrote here before...)