On Mon, Apr 13, 2009 at 2:29 AM, Mart Sõmermaa <mrts.py...@gmail.com> wrote:
>
>
> On Mon, Apr 13, 2009 at 12:56 AM, Antoine Pitrou <solip...@pitrou.net>
> wrote:
>>
>> Mart Sõmermaa <mrts.pydev <at> gmail.com> writes:
>> >
>> > Proposal: add add_query_params() for appending query parameters to an
>> > URL to
>> urllib.parse and urlparse.
>>
>> Is there anything to /remove/ a query parameter?
>
> I'd say this is outside the scope of add_query_params().
>
> As for the duplicate handling, I've implemented a threefold strategy that
> should address all use cases raised before:
>
> def add_query_params(*args, **kwargs):
> """
> add_query_parms(url, [allow_dups, [args_dict, [separator]]], **kwargs)
>
> Appends query parameters to an URL and returns the result.
>
> :param url: the URL to update, a string.
> :param allow_dups: if
> * True: plainly append new parameters, allowing all duplicates
> (default),
> * False: disallow duplicates in values and regroup keys so that
> different values for the same key are adjacent,
> * None: disallow duplicates in keys -- each key can have a single
> value and later values override the value (like dict.update()).
Unnamed flag parameters are unfriendly to the reader. If I see something like:
add_query_params(url, True, dict(a=b, c=d))
I can pretty much guess what the first and third arguments are, but I
have no clue for the second. Even if I have read the documentation
before, I may not remember whether the middle argument is "allow_dups"
or "keep_dups".
Steve
> :param args_dict: optional dictionary of parameters, default is {}.
> :param separator: either ';' or '&', the separator between key-value
> pairs, default is '&'.
> :param kwargs: parameters as keyword arguments.
>
> :return: original URL with updated query parameters or the original URL
> unchanged if no parameters given.
> """
>
> The commit is
>
> http://github.com/mrts/qparams/blob/b9bdbec46bf919d142ff63e6b2b822b5d57b6f89/qparams.py
>
> extensive description of the behaviour is in the doctests.
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