AttributeError: Failed to get attribute TPyDispatcher from ROOT

ROOT
1

I’m trying this code here:
https://root.cern/doc/master/gui__ex_8py_source.html
and I get the following error message:

Traceback (most recent call last):
  File "test.py", line 35, in <module>
    m = ROOT.TPyDispatcher( MyDraw )
  File "/Users/dinardo/root/myBuild/lib/ROOT/_facade.py", line 163, in _fallback_getattr
    raise AttributeError("Failed to get attribute {} from ROOT".format(name))
AttributeError: Failed to get attribute TPyDispatcher from ROOT

I compiled root from source with the following options:
cmake -D roofit=ON -D minuit2=ON -D gsl_shared=ON -D Python3_ROOT_DIR=/Users/dinardo/Homebrew/Cellar/python@3.8/3.8.5/Frameworks/Python.framework/Versions/3.8 ../

Do you know how can I fix this?
Many thanks,

  • Mauro.

_ROOT Version: 6.22.0
_Platform: Mac OS 10.15.6
_Compiler: Apple clang version 11.0.3 (clang-1103.0.32.62)

2

Dear Mauro,

6.22 has a couple of issues with creating GUIs from Python, we are about to make a patch release 6.22/02 that will fix this problem that you report, so I’d ask you try that release when it is out. Sorry for the inconveniences!

Enric

3

Hi Enric,
ok, sounds good.
Many thanks.

  • Mauro.
4

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.