[Python-ideas] Allow filtered dir built in
desmoulinmichel at gmail.com
Fri Jun 15 04:10:19 EDT 2018
Le 14/06/2018 à 11:27, Steve Barnes a écrit :
> Currently when working with interactive sessions using the dir() or
> dir(module) built in is incredibly useful for exploring what
> functionality is available in a module. (Especially the regrettable
> libraries or modules that add really valuable functionality but have no
> or limited docstrings).
> However I often find that when a module adds a lot of functions I need
> to filter those entries to be able to find the one that I need, e.g.:
> >>> import mpmath
> >>> dir(mpmath) # This produces 390+ lines of output but
> >>> for name in dir(mpmath):
> ... if 'sin' in name:
> ... print(name) # gives me a mere 13 to consider as candidates
> What I would really like to do is:
> >>> dir(mpmath.*sin*)
> However, I know that the interpreter will hit problems with one or more
> operators being embedded in the module name.
> What I would like to suggest is extending the dir built-in to allow an
> optional filter parameter that takes fnmatch type wild card as an
> optional filter. Then I could use:
> >>> dir(mpmath, "*sin*")
> To narrow down the candidates.
> Ideally, this could have a recursive variant that would also include
> listing, (and filtering), any sub-packages.
Fantastic idea. Would this make sense on var() too ? It's not exactly
the same usage context.
More information about the Python-ideas