Initial Query

Write me a python function called fix_json that fixes broken JSON objects, and returns the parsed object. I'll pass the JSON object as a string and it should fix: - Incorect parenthesis, e.g., {"a": (5, 4)} -> {"a": [5, 4]} - Incorrect single quotes, e.g., {'a': 5} -> {"a": 5} - False/True -> false/true

LLM Generation

Query

Output

Hereâ€™s a Python function called `fix_json` that addresses the issues you mentioned. It uses regular expressions to fix incorrect parentheses, single quotes, and boolean values in the JSON string before parsing it into a Python object.

import re
import json

def fix_json(json_str):
    # Replace single quotes with double quotes
    json_str = re.sub(r"'", '"', json_str)
    
    # Replace tuples (e.g., (5, 4)) with lists (e.g., [5, 4])
    json_str = re.sub(r'\(([^)]+)\)', r'[\1]', json_str)
    
    # Replace Python's True/False with JSON's true/false
    json_str = re.sub(r'\bTrue\b', 'true', json_str)
    json_str = re.sub(r'\bFalse\b', 'false', json_str)
    
    # Parse the corrected JSON string
    try:
        return json.loads(json_str)
    except json.JSONDecodeError as e:
        raise ValueError(f"Invalid JSON after fixing: {e}")

# Example usage
broken_json = "{'a': (5, 4), 'b': True, 'c': False}"
fixed_json = fix_json(broken_json)
print(fixed_json)  # Output: {'a': [5, 4], 'b': true, 'c': false}

### Explanation: 1. **Single Quotes to Double Quotes**: The `re.sub(r"'", '"', json_str)` replaces all single quotes (`'`) with double quotes (`"`), which is the standard for JSON. 2. **Tuples to Lists**: The `re.sub(r'\(([^)]+)\)', r'[\1]', json_str)` finds all tuples (e.g., `(5, 4)`) and replaces them with lists (e.g., `[5, 4]`). 3. **Boolean Values**: The `re.sub(r'\bTrue\b', 'true', json_str)` and `re.sub(r'\bFalse\b', 'false', json_str)` replace Python's `True` and `False` with JSON's `true` and `false`. 4. **Parsing**: The corrected JSON string is parsed using `json.loads()`. ### Notes: - This function assumes the input string is mostly correct JSON with the specific issues mentioned. It may not handle all edge cases. - If the JSON string is still invalid after fixing, a `ValueError` is raised with details about the parsing error. Let me know if you need further enhancements!

Extract Code

I extracted the following code from that output:

import re
import json

def fix_json(json_str):
    # Replace single quotes with double quotes
    json_str = re.sub(r"'", '"', json_str)
    
    # Replace tuples (e.g., (5, 4)) with lists (e.g., [5, 4])
    json_str = re.sub(r'\(([^)]+)\)', r'[\1]', json_str)
    
    # Replace Python's True/False with JSON's true/false
    json_str = re.sub(r'\bTrue\b', 'true', json_str)
    json_str = re.sub(r'\bFalse\b', 'false', json_str)
    
    # Parse the corrected JSON string
    try:
        return json.loads(json_str)
    except json.JSONDecodeError as e:
        raise ValueError(f"Invalid JSON after fixing: {e}")

# Example usage
broken_json = "{'a': (5, 4), 'b': True, 'c': False}"
fixed_json = fix_json(broken_json)
print(fixed_json)  # Output: {'a': [5, 4], 'b': true, 'c': false}

Run Code Interpreter

Running the following program:

import re
import json

def fix_json(json_str):
    # Replace single quotes with double quotes
    json_str = re.sub(r"'", '"', json_str)
    
    # Replace tuples (e.g., (5, 4)) with lists (e.g., [5, 4])
    json_str = re.sub(r'\(([^)]+)\)', r'[\1]', json_str)
    
    # Replace Python's True/False with JSON's true/false
    json_str = re.sub(r'\bTrue\b', 'true', json_str)
    json_str = re.sub(r'\bFalse\b', 'false', json_str)
    
    # Parse the corrected JSON string
    try:
        return json.loads(json_str)
    except json.JSONDecodeError as e:
        raise ValueError(f"Invalid JSON after fixing: {e}")

# Example usage
broken_json = "{'a': (5, 4), 'b': True, 'c': False}"
fixed_json = fix_json(broken_json)
print(fixed_json)  # Output: {'a': [5, 4], 'b': true, 'c': false}





answer = fix_json('''{"a": 5, "b": [3, 4]}''')
expected = {"a": 5, "b": [3, 4]}
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'

answer = fix_json('''{'a': 5.0, 'b': (True, 4)}''')
expected = {"a": 5.0, "b": [True, 4]}
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'

answer = fix_json('''{'True': False, 'b()': (3, 4), "c'": []}''')
expected = {"True": False, "b()": [3, 4], "c'": []}
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'
print('All tests passed')

And got the output:

{'a': [5, 4], 'b': True, 'c': False}
Traceback (most recent call last):
  File "/usr/src/app/main.py", line 18, in fix_json
    return json.loads(json_str)
           ^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/json/decoder.py", line 353, in raw_decode
    obj, end = self.scan_once(s, idx)
               ^^^^^^^^^^^^^^^^^^^^^^
json.decoder.JSONDecodeError: Expecting ':' delimiter: line 1 column 35 (char 34)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/src/app/main.py", line 39, in <module>
    answer = fix_json('''{'True': False, 'b()': (3, 4), "c'": []}''')
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/app/main.py", line 20, in fix_json
    raise ValueError(f"Invalid JSON after fixing: {e}")
ValueError: Invalid JSON after fixing: Expecting ':' delimiter: line 1 column 35 (char 34)

Substring Evaluation

Testing if the previous output contains the string All tests passed: False