Python dictionary escape double quotes

Question

I need to escape double quotes when converting a dict to json in Python, but I'm struggling to figure out how.

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So if I have a dict like {'foo': 'bar'}, I'd like to convert it to json and escape the double quotes - so it looks something like:

'{\"foo\":\"bar\"}'

json.dumps doesn't do this, and I have tried something like:

json.dumps({'foo': 'bar'}).replace('"', '\\"') which ends up formatting like so:

'{\\"foo\\": \\"bar\\"}'

This seems like such a simple problem to solve but I'm really struggling with it.

asked Jul 24, 2018 at 17:04

8

Your last attempt json.dumps({'foo': 'bar'}).replace('"', '\\"') is actually correct for what you think you want.

The reason you see this:

'{\\"foo\\": \\"bar\\"}'

Is because you're printing the representation of the string. The string itself will have only a single backslash for each quote. If you use print() on that result, you will see a single backslash

answered Jul 24, 2018 at 17:21

nosklonosklo

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What you have does work. Python is showing you the literal representation of it. If you save it to a variable and print it shows you what you're looking for.

>>> a = json.dumps({'foo': 'bar'}).replace('"', '\\"')
>>> print a
{\"foo\": \"bar\"}
>>> a
'{\\"foo\\": \\"bar\\"}'

answered Jul 24, 2018 at 17:23

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Given dictionary with string keys, remove double quotes from it.

Input : test_dict = {‘”Geeks”‘ : 3, ‘”g”eeks’ : 9}
Output : {‘Geeks’: 3, ‘geeks’: 9}
Explanation : Double quotes removed from keys.
Input : test_dict = {‘”Geeks”‘ : 3}
Output : {‘Geeks’: 3}
Explanation : Double quotes removed from keys.

Method #1 : Using dictionary comprehension + replace()

The combination of above functionalities can be used to solve this problem. In this, we perform removal of double quotes using replace() with empty string. The dictionary comprehension is used for remaking dictionary.

Python3

test_dict = {'"Geeks"' : 3, '"is" for' : 5, '"g"eeks' : 9}

print("The original dictionary is : " + str(test_dict))

res = {key.replace('"', ''):val for key, val in test_dict.items()}

print("The dictionary after removal of double quotes : " + str(res))

Output

The original dictionary is : {'"Geeks"': 3, '"is" for': 5, '"g"eeks': 9}
The dictionary after removal of double quotes : {'Geeks': 3, 'is for': 5, 'geeks': 9}

Method #2 : Using re.sub() + dictionary comprehension

The combination of above functions is also an alternative to solve this task. In this, we employ regex to solve the problem.

Python3

import re

test_dict = {'"Geeks"' : 3, '"is" for' : 5, '"g"eeks' : 9}

print("The original dictionary is : " + str(test_dict))

res = {re.sub(r'"', '', key): val for key, val in test_dict.items()}

print("The dictionary after removal of double quotes : " + str(res))

Output

The original dictionary is : {'"Geeks"': 3, '"is" for': 5, '"g"eeks': 9}
The dictionary after removal of double quotes : {'Geeks': 3, 'is for': 5, 'geeks': 9}

programming python JSON double quotes