On 17/08/2016 17:49, Jon Ribbens wrote:
On 2016-08-17, Steve Simmons <square.st...@gmail.com> wrote:
I'm trying to write a small utility to find the closest railway station
to a given (UK) postcode but the result is in JSON and I'm not familiar
with it. I've got as far as extracting the JSON object and I can print
the first level elements ("success" and "result") but I've totally
confused myself about how to delve into the rest of the data structure.
Can anyone point me to a 'how-to' for tackling a fairly complex SJON
object or give me some pointers. ... or maybe point out if I'm taking an
unnecessarily complex approach. Initially, I'm Looking to extract
'stationname', 'distance' and one or two of the coordinate pairs. To be
honest, I'd rather have some hints rather than the whole solution
otherwise I'll not learn anything :-) SteveS
It's not clear what the problem is.
Yes, that was the problem! I wasn't sure if I was being stupid (yes!)
about the Python or the JSON. Turns out, it was a bit of both ;-)
Does this help:
print(p_json["result"][0]["stationname"])
print(p_json["result"][0]["latlong"]["coordinates"])
?
Yes, immensely.
(To extract an item from a JSON object you index it with a string,
e.g. ["foo"]; to extract an item from an array you use an integer,
e.g. [0].)
Thanks very much, hopefully that'll set me on my way.
SteveS
--
https://mail.python.org/mailman/listinfo/python-list
