Python in json learning

Python library has simplejson in json and json two of them simplejson updated more frequently speed, speed in the case of C libraries much faster, json library after Python 2.6 has been built can be referenced directly.

A transcoding introduced Practice:

try:  

    import simplejson as json

except ImportError: 

    import json

simplejson和json的性能：For dumping, json is faster than simplejson. For loading, simplejson is faster.  

json a lightweight data interchange format, wherein, the python json.dumps json string into object coded, decoded string json.loads the Python object json

python original type of the conversion table json type:

Python	JSON
dict {u'a': 1, u'c': 3, u'b': 2, u'e': 5, u'd': 4}	object '{"a":1,"b":2,"c":3,"d":4,"e":5}'
list, tuple [ { 'a' : 1, 'b' : 2, 'c' : 3, 'd' : 4, 'e' : 5 } ]	array  [{"a": 1, "c": 3, "b": 2, "e": 5, "d": 4}]
str , unicode	string
int, long, float	number
True	true
False	false
None	null