Error when initilizing the application (non blocking)

[jjcampos]

What's wrong?
Upon starting up the application using python -m Orange.canvas it is showing the following error:

2023-02-10 10:09:41,193:ERROR:orangecanvas.registry.discovery: An ImportError occurred while loading entry point 'Associate = orangecontrib.associate.widgets'
Traceback (most recent call last):
  File "/home/jorge/.local/lib/python3.10/site-packages/orangecanvas/registry/discovery.py", line 122, in run
    point = entry_point.resolve()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2471, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/home/jorge/.local/lib/python3.10/site-packages/orangecontrib/associate/__init__.py", line 1, in <module>
    from .fpgrowth import \
  File "/home/jorge/.local/lib/python3.10/site-packages/orangecontrib/associate/fpgrowth.py", line 152, in <module>
    from collections import defaultdict, Iterator
ImportError: cannot import name 'Iterator' from 'collections' (/usr/lib/python3.10/collections/__init__.py)

It happens everytime the application starts. Note that the application still runs fine and works, this error is just being logged in the console.

How can we reproduce the problem?
Simply opening the application with the python command will throw this error

What's your environment?

• Operating system: Ubuntu 22.04.1 LTS, jammy
• Orange version: 3.34.1
• How you installed Orange: Using pip pip install orange3
• I followed the instructions on the download section of you website. Also installed the packages PyQt5 PyQtWebEngine
• Python version: Python 3.10.6
• pip version: pip 23.0

[markotoplak]

Thanks. This was fixed in #50.