Known Issues

Limitations and quirks:

1. References to all return values of Tcl commands are maintained in Tcl, purposefully preventing garbage collection in Tcl. This is not a big concern for Tcl tools that perform a limited sequence of tasks and then terminate, but can be seen as a problematic memory leak in other cases.

2. Be careful when passing bools to Tcl commands using the Python-style interface: t.myfunc(myflag=True) leads to the Tcl command myfunc -myflag and t.myfunc(myflag=False) leads to the Tcl command myfunc, omitting myflag entirely. If you need Tcl commands like myfunc -myflag true and myfunc -myflag false, pass “true” / “false” as strings.