Converting String to Python Dictionary

Question

This code returns a str as the type. Given the format of tasks, how do I convert it into a python dictionary?

import json

tasks = '''{'key1': 'val1', 'key2': None}'''

new_tasks = tasks.replace("'", "\"")
new_tasks = new_tasks.replace('None', 'null')

new_tasks = json.dumps(new_tasks)
new_tasks = json.loads(new_tasks)
print(type(new_tasks))

Note: I would prefer to not use ast.literal_eval or ast.eval.

Why don't you want to use ast.literal_eval()? This is precisely what it's intended for. — Barmar
– Barmar, Commented Jul 7, 2021 at 23:57
Your code will do the wrong thing for {'None': 'val1'} or {'key1': 'None of us are coming'} — Barmar
– Barmar, Commented Jul 7, 2021 at 23:57
Please work through the documentation and/or tutorials for the json package. You have the right idea, but you need to learn the usage idioms. — Prune
– Prune, Commented Jul 7, 2021 at 23:59

user16401871 · Accepted Answer · 2021-07-08 00:00:56Z

1

import json

tasks = '''{'key1': 'val1', 'key2': None}'''

new_tasks = tasks.replace("'", "\"")
new_tasks = new_tasks.replace('None', 'null')

# new_tasks = json.dumps(new_tasks)
new_tasks = json.loads(new_tasks)
print(type(new_tasks))

As Barmar said, the dumps double wraps it in quotation marks

output:

<class 'dict'>

answered Jul 8, 2021 at 0:00

user16401871

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