TypeError: Dot.__init__() got an unexpected keyword argument 'log'

[v.jean.vittor@…]

How to Reproduce

While doing a GET operation on /depgraph/ticket/10, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'id': '10', 'realm': 'ticket'}

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:94.0) Gecko/20100101 Firefox/94.0

System Information

Trac	1.5.3
Babel	2.9.1
Jinja2	N/A
pysqlite	2.6.0
Python	3.10.0 (default, Oct 4 2021, 00:00:00) [GCC 11.2.1 20210728 (Red Hat 11.2.1-1)]
pytz	2021.3
setuptools	57.4.0
SQLite	3.36.0
jQuery	1.12.4
jQuery UI	1.12.1
jQuery Timepicker	1.6.3

Enabled Plugins

TraceableMacro	0.0.1.dev0
TracMasterTickets	4.0.5.dev0

Interface Customization

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python3.10/site-packages/trac/web/main.py", line 610, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python3.10/site-packages/trac/web/main.py", line 302, in dispatch
    raise e
  File "/usr/lib/python3.10/site-packages/trac/web/main.py", line 248, in dispatch
    resp = chosen_handler.process_request(req)
  File "/home/jean/work/quintech/trac/plugins/TracMasterTickets-4.0.5.dev0-py3.10.egg/mastertickets/web_ui.py", line 244, in process_request
    g = self._build_graph(req, tkt_ids, label_summary=label_summary)
  File "/home/jean/work/quintech/trac/plugins/TracMasterTickets-4.0.5.dev0-py3.10.egg/mastertickets/web_ui.py", line 311, in _build_graph
    g = graphviz.Graph(log=self.log)
TypeError: Dot.__init__() got an unexpected keyword argument 'log'

[Ryan J Ollos]

The plugin isn't compatible with Python3. It will need to be migrated.