Error during hit creation about JSON object

[tree-pi]

I am running psiturk 2.3.5 under python 3.5 (somehow python 3.6 or 3.7 won't work at all). When doing hit create it returns:

Error during hit creation.
Response(Operation: create_hit | Status: error | Exception: the JSON object must be str, not 'bytes')

I traced back to create_hit() in aws_services_wrapper.py but don't see anything related with JSON...

[deargle]

More info on error messages with 3.6 or 3.7 please?

On Wed, Oct 9, 2019, 5:39 PM zhiweili notifications@github.com wrote:

I am running psiturk 2.3.5 under python 3.5 (somehow python 3.6 or 3.7 won't work at all). When doing hit create it returns:

Error during hit creation. Response(Operation: create_hit | Status: error | Exception: the JSON object must be str, not 'bytes')

I traced back to create_hit() in aws_services_wrapper.py but don't see anything related with JSON...

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/NYUCCL/psiTurk/issues/383?email_source=notifications&email_token=AAI6Y7MXPUNUEXBQSC637ODQNZTUZA5CNFSM4I7F7PK2YY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4HQY5VUQ, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAI6Y7MTTNIQY2XOQDHOBYDQNZTUZANCNFSM4I7F7PKQ .

[tree-pi]

Sure! The error is same in 3.6 / 3.7 (anaconda). After start psiturk, whatever the first command I put in (e.g. server on or mode), the following error returns and the psiturk quits.

python(27645,0x7fff8a614380) malloc: *** error for object 0x10b70a120: pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
Abort trap: 6

[deargle]

I'm pretty sure that's a gnureadline error, see https://github.com/NYUCCL/psiTurk/issues/371 , because gnureadline is compiled C and that is a C error message. I am going to guess that at some point, gnureadline got installed into your conda env, and is messing things up. You should remove it and let anaconda handle its own readline.

And I just realized that I forgot to make a new pip release with that fix. Hold on, I'll release 2.3.6

[deargle]

Okay, try 2.3.6 in a clean environment.

[tree-pi]

ok great! pip uninstall gnureadline then installed psiturk 2.3.6 in conda python 3.7. Everything works now

[deargle]

Hooray!