Host a MultiStairCase Experiment online

[Ashwani270292]

While trying to convert an existing MultiStairCase experiment into online version, psychopy is showing error.
AttributeError: ‘MultiStairHandler’ object has no attribute ‘writeLoopStartCodeJS’

When I searched more I was able to find a file, loops.py, which is having the conversion logic, but it is missing writeLoopStartCodeJS inside MultiStairHandler.

[jamesferwerda]

Hi, I'm having the same problem. Did you ever figure out a solution?

[alexeijoel]

Similar error here - anyone found a fix?

[m-macaskill]

Staircase-based loops only became available for online use in the 2022 releases of PsychoPy. Have you tried with the latest version of PsychoPy (currently 2022.1.2)?

[alexeijoel]

I am seeing the same error with StairHandler (rather thanMultiStairHandler) using PsychoPy 2022.1.2 (just upgraded)

Error content:

Traceback (most recent call last):
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/app/builder/builder.py”, line 808, in fileExport
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/scripts/psyexpCompile.py”, line 71, in generateScript
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/scripts/psyexpCompile.py”, line 245, in compileScript
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/scripts/psyexpCompile.py”, line 217, in _makeTarget
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/_experiment.py”, line 336, in writeScript
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/flow.py”, line 343, in writeLoopHandlerJS
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/loops.py”, line 773, in writeMainCodeJS
AttributeError: ‘StairHandler’ object has no attribute ‘writeLoopStartCodeJS’