[Tutor] Parsing JSON with Python

[Alan Gauld]

On 11/12/14 20:25, Galen Seilis wrote:
> To whom it may concern,
>
> I am having difficulty interacting with JSON. The example below if a
> typical input and output:
>
>
> *import json*
> *array = json.load( { "name": "Joe", "address": "111 Street" } )*
>
> *Traceback (most recent call last): File "<stdin>" , line 1, in <module>
> File "C:\Python27\lib\json\__init__.py" , line 286, in load return
> loads(fp.read(), AttributeError: 'dict' object has no attribute 'read' >>>*

The documentation for json.load() says:

######################
json.load(fp, cls=None, object_hook=None, parse_float=None, 
parse_int=None, parse_constant=None, object_pairs_hook=None, **kw)

Deserialize fp (a .read()-supporting file-like object containing a JSON 
document) to a Python object using this conversion table.
...
#####################

So it expects a file-like object as its first argument but you are 
passing a dictionary.

It's not clear whether you are trying to convert your dictionary into a 
json data stream or whether you are trying to read a json string and 
convert it to a Python dictionary. Whichever way round you won't get
an array back.

dumps() will turn a Python data structure into a JSON string.
loads() will turn a JSON string into a Python object. I'm guessing
this is what you wanted?

Just remember that the 's' at the end signifies string not a plural.
And the non-s versions use files not strings.

HTH
-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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