[Python-ideas] Efficient debug logging

Giampaolo Rodola' g.rodola at gmail.com
Thu Feb 16 09:24:54 EST 2017

On Thu, Feb 16, 2017 at 1:55 PM, M.-A. Lemburg <mal at egenix.com> wrote:

> Some comments:
>  1. you don't need a preprocessor for this: simply put your
>     logging code into an "if __debug__:" block:
> https://docs.python.org/3.6/reference/simple_stmts.html?
> the-assert-statement#grammar-token-assert_stmt
>     and then run your production code with "python -O"
>     (the trick here is that the Python byte code compiler will
>     not even generate code for such ifs)

I didn't know about if __debug__ + -O:.
Unbelievable after so many years.
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