[Python-ideas] Boolean parameters guidelines

[Joseph Martinot-Lagarde]

Serhiy Storchaka <storchaka at ...> writes:

> 1. It is preferable to pass boolean arguments as keyword arguments (if 
> this is not the only argument).
> 
> 2. It is preferable to declare boolean parameters as keyword-only 
> parameters.
> 

It is true for literal keywords arguments, but passing a named variable with
a boolean value can be fine.

    # Bad
    my_func(True)

    # Good
    my_func(enable=True)

    # Good
    enable=True
    my_func(enable)

    # Meh
    enable=True
    my_func(enable=enable)

    # Bad
    w=True
    my_func(w)