WARNING: pytables package not found. ioHub functionality will be disabled.

[JensBoelte]

Hello,

after upgrading to PsychoPy version 2023.2.1 I keep receiving the following warning when running an experiment:

WARNING: pytables package not found. ioHub functionality will be disabled.

However, the tables library seems to be installed

C:\Program Files\PsychoPy>python -m pip install tables
Requirement already satisfied: tables in c:\program files\psychopy\lib\site-packages (3.6.1)
Requirement already satisfied: numpy>=1.9.3 in c:\program files\psychopy\lib\site-packages (from tables) (1.24.4)
Requirement already satisfied: numexpr>=2.6.2 in c:\program files\psychopy\lib\site-packages (from tables) (2.7.3)

How do I get PsychoPy to recognize that the library tables is installed?

Best wishes Jens

[peircej]

I wonder if it's installed but failing to import. Could you try
c:\program files\psychopy\python -c 'import tables; print(tables.__version__)'

[revatis2]

I ran into the same issue after updating to v2023.2.2. When I run c:\program files\psychopy\python -c 'import tables; print(tables.__version__)', I get this:

ImportError: cannot import name typeDict

However when I ran C:\Program Files\PsychoPy>python -m pip install tables, it says the requirement was already satisfied, like in the OP's question.

[JensBoelte]

Hello

c:\program files\psychopy\python -c 'import tables; print(tables.__version__)' gives an error

C:\Program Files\PsychoPy>python -c 'import tables' File "<string>", line 1 'import ^ SyntaxError: EOL while scanning string literal

python -c "import tables" runs (?) but also throws an error
Traceback (most recent call last): File "<string>", line 1, in <module> File "C:\Program Files\PsychoPy\lib\site-packages\tables\__init__.py", line 99, in <module> from .utilsextension import ( File "tables\utilsextension.pyx", line 169, in init tables.utilsextension ImportError: cannot import name typeDict

Best wishes Jens

[JensBoelte]

Hello,

I think I could solve this problem. PsychoPy "complains" that the installed numpy-version (1.24.4) is too new and that it needs a numpy version 1.22 or older. Downgrading to this numpy-version gets rid of the warning and pytables are loaded. Notice that pip complains about some dependency conflicts afterwards:

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
psychopy 2023.2.2 requires pyparallel; platform_system != "Darwin", which is not installed.
psychopy 2023.2.2 requires websockets, which is not installed.
psychopy 2023.2.2 requires xmlschema, which is not installed.
psychopy 2023.2.2 requires javascripthon>=0.12, but you have javascripthon 0.11 which is incompatible.
psychopy 2023.2.2 requires pandas>=1.5.3, but you have pandas 1.3.4 which is incompatible.
psychopy 2023.2.2 requires pillow>=9.4.0, but you have pillow 8.4.0 which is incompatible.
psychopy 2023.2.2 requires questplus>=2023.1, but you have questplus 2019.4 which is incompatible.

Should I upgrade this libraries as well?

Best wishes Jens

[peircej]

We shouldn't need to send numpy all the way back to 1.22 but if I update tables to 3.8 that also seems to fix it so I'm guessing the tables team has spotted the issue and handled it too

[peircej]

Regarding the others, yes, I think that's a good idea 👍
Will have these in place for 2023.2.3