Split string with sublist in python

Question

I've this string:

"{'osFreeMem': 286494720, 'osUpTime': 19230718, 'sysload': [0.24609375, 0.62109375, 0.734375], 'nodeUpTime': 1831, 'osTotMem': 536870912, 'nodeMemory': {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760}}"

I want to have a dictionary with these values:

'osFreeMem': 286494720
'osUpTime': 19230718
'sysload': [0.24609375, 0.62109375, 0.734375]    
'nodeUpTime': 1831
'osTotMem': 536870912    
'nodeMemory': {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760}

How i can get this list?

Where did you get that string from? You could probably get the data directly. If you can't get the data directly, I would switch the single quotes to double and parse it as JSON. — Waleed Khan
– Waleed Khan, Commented Mar 12, 2013 at 12:24
I get it from a server, by a websocket. How can i parse it with JSON PARSER? — David R
– David R, Commented Mar 12, 2013 at 12:26

root · Accepted Answer · 2013-03-12 12:30:53Z

5

In [37]: s = "{'osFreeMem': 286494720, 'osUpTime': 19230718, 'sysload': [0.24609375, 0.62109375, 0.734375], 'nodeUpTime': 1831, 'osTotMem': 536870912, 'nodeMemory': {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760}}"

In [38]: import ast

In [39]: d = ast.literal_eval(s)

In [40]: d
Out[40]: 
{'nodeMemory': {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760},
 'nodeUpTime': 1831,
 'osFreeMem': 286494720,
 'osTotMem': 536870912,
 'osUpTime': 19230718,
 'sysload': [0.24609375, 0.62109375, 0.734375]}

In [41]: d.items()
Out[41]: 
[('osFreeMem', 286494720),
 ('osUpTime', 19230718),
 ('sysload', [0.24609375, 0.62109375, 0.734375]),
 ('nodeUpTime', 1831),
 ('osTotMem', 536870912),
 ('nodeMemory', {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760})]

or

In [44]: import json

In [45]: json.loads(s.replace("'",'"')).items()
Out[45]: 
[(u'osFreeMem', 286494720),
 (u'osUpTime', 19230718),
 (u'sysload', [0.24609375, 0.62109375, 0.734375]),
 (u'nodeUpTime', 1831),
 (u'osTotMem', 536870912),
 (u'nodeMemory', {u'heapTotal': 8766304, u'heapUsed': 7789588, u'rss': 22773760})]

edited Mar 12, 2013 at 12:30

answered Mar 12, 2013 at 12:25

root

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1 Comment

Jon Clements Over a year ago

+1 for literal_eval - not convinced about replacing quotes and using json though

Omer Dagan · Accepted Answer · 2013-03-12 12:51:40Z

-1

You can also use the built in function eval

>>>d = eval("{'osFreeMem': 286494720, 'osUpTime': 19230718, 'sysload': [0.24609375, 0.62109375, 0.734375], 'nodeUpTime': 1831, 'osTotMem': 536870912, 'nodeMemory': {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760}}")
>>>d
{'osFreeMem': 286494720, 'osUpTime': 19230718, 'sysload': [0.24609375, 0.62109375, 0.734375], nodeUpTime': 1831, 'osTotMem': 536870912, 'nodeMemory': {'heapTotal': 8766304, 'heapUsed': 7789588, 'rss': 22773760}}

answered Mar 12, 2013 at 12:51

Omer Dagan

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3 Comments

root Over a year ago

You can, but you should not, because eval is dangerous

Omer Dagan Over a year ago

It is dangerous only in case you allow users to hand input to it. Otherwise, it is as dangerous as any other command that might be used to execute commands (such as the commands module)

David R Over a year ago

thanks. it works! i just had to do this: x = ast.literal_eval(message) result = map(lambda item: item[0] + ': ' + str(item[1]), x.items())

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