Problem with entering non-ascii characters in text input form with psychoPy backend

Leo · November 2019

Hi,

I have encountered what seems like a bug when creating custom text input forms using OpenSesame with psychoPy backend. When entering any special character in a text input field (e.g. äöüß), the program ends with

TypeError: unsupported operand type(s) for &: 'float' and 'int'

The program ends as soon as the character is entered and I cannot avoid this by defining key_filters. I also have not found a function to set text_input fields to UTF-8. This is with psychoPy backend, with xpyriment no errors occur. A working simple program recreating this problem on my computer is below.

Is this known or is there a solution (besides using another backend)?

---
API: 2.1
OpenSesame: 3.2.8
Platform: nt
---
set width 1024
set uniform_coordinates yes
set title "New experiment"
set subject_parity even
set subject_nr 0
set start experiment
set sound_sample_size -16
set sound_freq 48000
set sound_channels 2
set sound_buf_size 1024
set sampler_backend legacy
set round_decimals 2
set mouse_backend psycho
set keyboard_backend psycho
set height 768
set fullscreen no
set form_clicks no
set foreground white
set font_underline no
set font_size 18
set font_italic no
set font_family mono
set font_bold no
set experiment_path "c:\\Program Files (x86)\\OpenSesame\\share\\opensesame_resources\\templates"
set disable_garbage_collection yes
set description "The main experiment item"
set coordinates uniform
set compensation 0
set color_backend psycho
set clock_backend psycho
set canvas_backend psycho
set background black

define sequence experiment
   set flush_keyboard yes
   set description "Runs a number of items in sequence"
   run new_inline_script always

define inline_script new_inline_script
   set description "Executes Python code"
   ___run__
   #parameters
   thisQuestion=u'Please enter your answer'
   # Create a form
   form = Form(
      cols=[1], rows=[2,1],
      margins=(50,100,50,100), spacing=25
   )

   #add widgets
   form.set_widget(Label(text=thisQuestion, center=False), (0,0))
   textInput=TextInput(return_accepts=True, stub=u'Answer')
   form.set_widget(textInput, (0,1))   
   form._exec(textInput)
   __end__
   set _prepare ""

eduard · November 2019

Hi,

Yeah, these characters cause issues with the psycho backend. Not sure whether this issue is known. Do you care to open an issue on Github? That'd be helpful.

Eduard

Leo · November 2019

Hi,

I have opened this as a new issue in GitHub as #680 (https://github.com/smathot/OpenSesame/issues/680). I have also searched other issues and interestingly this issue seems both known and fixed in 3.2.7.

https://github.com/smathot/OpenSesame/issues/651

As it reoccured for me in 3.2.8 I opted to create the new issue.

Best

Leo

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Problem with entering non-ascii characters in text input form with psychoPy backend

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