Re: Coding style

From: "tac-tics" <tactics40@xxxxxxxxx>
Date: 17 Jul 2006 17:42:19 -0700

dwelch91 wrote:

tac-tics wrote:

I'd say the second one. Empty lists are not false. They are empty. Long
live dedicated boolean data types.

Uh, no, empty lists are False in a boolean context:

http://docs.python.org/lib/truth.html

-Don

Perhaps I should have specified it like this:

empty_list = []
empty_list is not False

True

I'm well aware that both of these snippets does the same thing. I'm
just spouting my opinion that lists and integers are not tests, and in
an ideal world (Java??? X-) if statements support only boolean types.

DISCLAIMER: I do not promote the use of Java.

.

Follow-Ups:
- Re: Coding style
  - From: Erik Max Francis

References:
- Coding style
  - From: PTY
- Re: Coding style
  - From: Simon Brunning
- Re: Coding style
  - From: tac-tics
- Re: Coding style
  - From: dwelch91

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Relevant Pages

Re: Coding style
... Long live dedicated boolean data types. ... Tac-tics is right, an empty list is not False. ...
(comp.lang.python)
Re: Coding style
... Empty lists are not false. ... live dedicated boolean data types. ...
(comp.lang.python)
Re: Coding style
... Empty lists are not false. ... live dedicated boolean data types. ...
(comp.lang.python)
Re: Coding style
... tac-tics wrote: ... live dedicated boolean data types. ...
(comp.lang.python)