wdb This command shows or extends the namespace where an input command is searched in.
In this example, the namespace is extended:
% namespace path "tcl::mathfunc tcl::mathop" %
Now, you can input math-related commands as follows:
% hypot 3 [+ 2 2] 5.0 %
In This example, the namespace extension is shown.
% namespace path ::tcl::mathfunc ::tcl::mathop %
Note that the namespaces argument is one proper list. It is not possible to input namespaces as single arguments. (Is it a matter of discussion if that should be possible?)
Note that namespace path can be executed differently in a different namespace.