Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #33740

Re: Constructing JSON data structures from non-string key python dictionaries

Date 2012-11-21 15:48 +0000
From MRAB <python@mrabarnett.plus.com>
Subject Re: Constructing JSON data structures from non-string key python dictionaries
References <737ef2a9-f2e0-43fe-86a0-199940be2b69@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.157.1353512886.29569.python-list@python.org> (permalink)

Show all headers | View raw


On 2012-11-21 14:59, saikari78 wrote:
> Hi,
>
> I'm using the json module to  create a JSON string, then inserting that string into a html template containing a javascript function (from the highcharts library: http://www.highcharts.com/)
> The json string I'm trying to create is to initialize a data variable in the javascript function, that has the following example format.
>
>
>
>              data = [{
>                      y: 55.11,
>                      color: colors[0],
>                      drilldown: {
>                          name: 'MSIE versions',
>                          categories: ['MSIE 6.0', 'MSIE 7.0', 'MSIE 8.0', 'MSIE 9.0'],
>                          data: [10.85, 7.35, 33.06, 2.81],
>                          color: colors[0]
>                      }
>                  }]
>
> However, I don't know how to do that because dictionary keys in python need to be strings. If I try to do the following, Python,of course, complains that y,color,drilldown, etc are not defined.
>
>
> import json
>
> data = [ { y:55.11, color:colors[0], drilldown:{name: 'MSIE versions',categories: ['MSIE 6.0', 'MSIE 7.0', 'MSIE 8.0', 'MSIE 9.0'],data: [10.85, 7.35, 33.06, 2.81],color: colors[0] }} ]
>
> data_string = json.dumps(data)
>
>
> Many thanks for any suggestions on how to do this.
>
Just quote them:

data = [ { 'y':55.11, 'color':colors[0], 'drilldown':{'name': 'MSIE 
versions','categories': ['MSIE 6.0', 'MSIE 7.0', 'MSIE 8.0', 'MSIE 
9.0'],'data': [10.85, 7.35, 33.06, 2.81],'color': colors[0] }} ]

Incidentally, dictionary keys in Python don't have to be strings, but
merely 'hashable', which includes integers, floats and tuples amongst
others.

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Constructing JSON data structures from non-string key python dictionaries saikari78 <saikari78@gmail.com> - 2012-11-21 06:59 -0800
  Re: Constructing JSON data structures from non-string key python dictionaries MRAB <python@mrabarnett.plus.com> - 2012-11-21 15:48 +0000
    Re: Constructing JSON data structures from non-string key python dictionaries Grant Edwards <invalid@invalid.invalid> - 2012-11-21 16:04 +0000
    Re: Constructing JSON data structures from non-string key python dictionaries hfolch@gmail.com - 2012-11-21 08:04 -0800
      Re: Constructing JSON data structures from non-string key python dictionaries MRAB <python@mrabarnett.plus.com> - 2012-11-21 16:27 +0000
      Re: Constructing JSON data structures from non-string key python dictionaries MRAB <python@mrabarnett.plus.com> - 2012-11-21 16:43 +0000
      Re: Constructing JSON data structures from non-string key python dictionaries Chris Rebert <clp2@rebertia.com> - 2012-11-21 11:04 -0800
        Re: Constructing JSON data structures from non-string key python dictionaries saikari78 <saikari78@gmail.com> - 2012-11-22 09:05 -0800
        Re: Constructing JSON data structures from non-string key python dictionaries saikari78 <saikari78@gmail.com> - 2012-11-22 09:05 -0800
      Re: Constructing JSON data structures from non-string key python dictionaries Paul Kölle <paul@subsignal.org> - 2012-11-22 09:53 +0100
    Re: Constructing JSON data structures from non-string key python dictionaries hfolch@gmail.com - 2012-11-21 08:04 -0800

csiph-web