Is string to dict conversion possible in python?

Question

We can convert a dict into string but can we convert string back to dict ??

code

c={'a':3,'b':445}
d=str(c)

here can i replace d to type dict.

I want to take dict in form of string and encrypt all numeric digits at once using a key and retain back the dictionary with encrypted numbers.

You really don't need to convert the `dict` to a string to do that. — roippi, May 17 '14 at 22:31

score 4 · Accepted Answer · answered May 17 '14 at 22:26

4

If I get your question right, you can achieve it this way:

>>> import ast
>>> ast.literal_eval(d)
{'a': 3, 'b': 445}

answered May 17 '14 at 22:26

ovgolovin

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This works fine but it does automatic round up in case of float elements which is creating difficulty now – ceasif May 18 '14 at 10:26
@ceasif I don't see any roundup: http://ideone.com/GAI2bJ – ovgolovin May 18 '14 at 10:45
`mapping = df.to_dict() d=str(mapping) e= ast.literal_eval(d) print d print e ` – ceasif May 18 '14 at 12:07

score 0 · Answer 2 · answered May 17 '14 at 22:35

0

You can use json tool.

Usage of it is easy.

import json
test = {"a": 1}

# Change dict to string
json_str = json.dumps(test)
print "json_str:= ", json_str

# Change string to dict
json_obj = json.loads(json_str)
print "json_obj:= ", json_obj

answered May 17 '14 at 22:35

umut

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this doesnot work when the values associated to keys are tuple :( – ceasif May 18 '14 at 10:27
@ceasif you are right. It cast tuple object to list. ast.literal_eval is right way for string to dict. Thanks for the warning :). – umut May 18 '14 at 10:44

Is string to dict conversion possible in python?

2 Answers2