SyntaxError: positional argument follows keyword argument
Rhodri James
rhodri at kynesim.co.uk
Fri Jun 7 14:50:39 EDT 2019
On 07/06/2019 19:43, Rich Shepard wrote:
> I understand positional and keyword arguments and the syntax for the
> ttk.Checkbutton as described on
> <https://www.tcl.tk/man/tcl/TkCmd/ttk_checkbutton.htm>.
>
> $ python3 geochem.py
> File "geochem.py", line 60
> ttk.Checkbutton(text='Censored?', variable=input_var),
> ^
> SyntaxError: positional argument follows keyword argument
>
> I've provided only keyword arguments to the call to the ttk.Checkbutton
> widget and am not seeing the positional argument that follows. Please show
> me what I miss seeing here:
Context is everything!
> self.inputs['nondetect'] = LabelInput(
> self, 'Censored?',
> #input_var = tk.BooleanVar(),
> input_var = tk.IntVar,
> ttk.Checkbutton(text='Censored?', variable=input_var),
> )
Now we can see that Python isn't complaining about the arguments to
tth.Checkbutton. The call to ttk.Checkbutton() is itself a positional
argument in the call to LabelInput, coming after the keyword argument
"input_var = tk.IntVar".
--
Rhodri James *-* Kynesim Ltd
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