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

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

Output

Below is one solution. The idea is to “fix” the broken JSON string by leveraging Python’s ability to parse Python‐style literals (even if they aren’t strictly JSON compliant) and then recursively converting any tuple values into lists. (When you later dump the result with Python’s json module, True/False become true/false, and keys are properly double‐quoted.) Here’s the code: ------------------------------------------------ def fix_json(json_str): """ Fixes a broken JSON string by: • Converting Python tuples to lists (e.g. (1, 2) -> [1,2]) • Replacing single quotes with double quotes (handled naturally by ast.literal_eval) • Interpreting Python booleans True/False (which json.dumps converts to true/false) Returns the parsed object. """ import ast import json # First, use ast.literal_eval to parse the string. # This handles single vs double quotes and Python booleans. try: data = ast.literal_eval(json_str) except Exception as e: raise ValueError("Input string is not a valid Python literal: " + str(e)) # Recursively convert tuples into lists def convert_tuples(obj): if isinstance(obj, tuple): return [convert_tuples(item) for item in obj] elif isinstance(obj, list): return [convert_tuples(item) for item in obj] elif isinstance(obj, dict): # For dictionaries, also process keys if needed return {convert_tuples(key): convert_tuples(value) for key, value in obj.items()} else: return obj fixed_data = convert_tuples(data) # At this point fixed_data holds only types that are valid JSON types. # For example, if you write: # json.dumps(fixed_data) # the output will have proper double-quotes and lowercase booleans. return fixed_data # Example usage: if __name__ == '__main__': broken_json1 = '{"a": (5, 4)}' broken_json2 = "{'a': 5, 'flag': True}" print(fix_json(broken_json1)) print(fix_json(broken_json2)) # If you want a valid JSON string, you can do: import json print(json.dumps(fix_json(broken_json1))) print(json.dumps(fix_json(broken_json2))) ------------------------------------------------ Explanation: 1. We import ast and use ast.literal_eval to convert the broken JSON string into a Python object. This step naturally handles: • Single quotes (since Python accepts them) • Python booleans (True/False) • Tuples for things like (5, 4) 2. The nested function convert_tuples walks the entire structure and turns any tuple into a list. This way the eventual object is “JSON‐compatible.” 3. Finally, if you dump the object via json.dumps, you see proper JSON syntax (double quotes for keys; booleans as true/false, etc.). This solution avoids using regular expressions to do "search‐and‐replace" inside the raw text (which is error prone for nested quotes) and relies on Python’s parser to do the heavy lifting.

Extract Code

I extracted the following code from that output: 

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import ast
import json

def fix_json(json_str):
    """
    Fixes a broken JSON string by:
      • Converting Python tuples to lists (e.g. (1, 2) -> [1,2])
      • Replacing single quotes with double quotes (handled naturally by ast.literal_eval)
      • Interpreting Python booleans True/False (which json.dumps converts to true/false)
    
    Returns the parsed object.
    """
    try:
        data = ast.literal_eval(json_str)
    except Exception as e:
        raise ValueError("Input string is not a valid Python literal: " + str(e))
    
    # Recursively convert tuples into lists
    def convert_tuples(obj):
        if isinstance(obj, tuple):
            return [convert_tuples(item) for item in obj]
        elif isinstance(obj, list):
            return [convert_tuples(item) for item in obj]
        elif isinstance(obj, dict):
            return {convert_tuples(key): convert_tuples(value) for key, value in obj.items()}
        else:
            return obj

    fixed_data = convert_tuples(data)
    return fixed_data

Run Code Interpreter

Running the following program: 

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import ast
import json

def fix_json(json_str):
    """
    Fixes a broken JSON string by:
      • Converting Python tuples to lists (e.g. (1, 2) -> [1,2])
      • Replacing single quotes with double quotes (handled naturally by ast.literal_eval)
      • Interpreting Python booleans True/False (which json.dumps converts to true/false)
    
    Returns the parsed object.
    """
    try:
        data = ast.literal_eval(json_str)
    except Exception as e:
        raise ValueError("Input string is not a valid Python literal: " + str(e))
    
    # Recursively convert tuples into lists
    def convert_tuples(obj):
        if isinstance(obj, tuple):
            return [convert_tuples(item) for item in obj]
        elif isinstance(obj, list):
            return [convert_tuples(item) for item in obj]
        elif isinstance(obj, dict):
            return {convert_tuples(key): convert_tuples(value) for key, value in obj.items()}
        else:
            return obj

    fixed_data = convert_tuples(data)
    return fixed_data




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: All tests passed

Substring Evaluation

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

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

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

Output

Below is one way to do it. One idea is to “massage” the input string so that it becomes valid Python literal syntax (which is close enough to JSON) and then use ast.literal_eval to get a Python object. (Remember, valid JSON requires arrays to use square‐brackets, keys and string values to use double quotes, and booleans to be lower-case—but our “fixed” object is meant to be a Python object, so we can later reformat tuples as lists.) For example, consider this implementation: ------------------------------------------------ def fix_json(broken_json_str): """ Fix a broken JSON string and return the parsed Python object. The "broken" JSON fixes include: • replacing any tuple-like parenthesis with square brackets, • converting single quotes to double quotes for keys/strings, • normalizing booleans from JSON style (true/false) or Python style (True/False) so that ast.literal_eval can parse it. Note: This function assumes that the broken JSON is not too complicated. """ import ast import re # Step 1. Fix booleans. # If the broken JSON uses lowercase true/false (valid JSON) but we want to use ast.literal_eval, # then we need to capitalize them (but be careful not to change content inside a string). # For a simple approach, we assume boolean words are not used inside string values. safe_str = re.sub(r'\btrue\b', 'True', broken_json_str, flags=re.IGNORECASE) safe_str = re.sub(r'\bfalse\b', 'False', safe_str, flags=re.IGNORECASE) # Step 2. Convert single quotes to double quotes. # This regex looks for single quotes that are not escaped. # (For more complicated cases inside strings, a full parser would be needed.) safe_str = re.sub(r"(?<!\\)'", '"', safe_str) # Step 3. Replace parentheses used in place of square brackets. # This simple version replaces any ( with [ and ) with ] # This can be made more precise if necessary. safe_str = safe_str.replace('(', '[').replace(')', ']') # At this point, safe_str should be valid as a Python literal. try: parsed = ast.literal_eval(safe_str) except Exception as e: raise ValueError("Unable to parse the fixed JSON string. Original error: " + str(e)) # Step 4. In case any tuples still remain (if for some reason a tuple got through), # recursively convert all tuples to lists. def tuple_to_list(item): if isinstance(item, tuple): return [tuple_to_list(elem) for elem in item] elif isinstance(item, list): return [tuple_to_list(elem) for elem in item] elif isinstance(item, dict): return {key: tuple_to_list(val) for key, val in item.items()} else: return item return tuple_to_list(parsed) # Example usage: if __name__ == "__main__": # Example 1: tuple fixed to list. broken = '{"a": (5, 4)}' fixed = fix_json(broken) print("Input:", broken) print("Fixed output:", fixed) # prints: {'a': [5, 4]} # Example 2: single quotes fixed. broken2 = "{'a': 5, 'b': (1,2)}" fixed2 = fix_json(broken2) print("\nInput:", broken2) print("Fixed output:", fixed2) # prints: {'a': 5, 'b': [1, 2]} # Example 3: booleans fixed. broken3 = '{"active": True, "deleted": False}' fixed3 = fix_json(broken3) print("\nInput:", broken3) print("Fixed output:", fixed3) # prints: {'active': True, 'deleted': False} ------------------------------------------------ How it works: 1. The code uses regex substitutions to make three kinds of replacements: • Booleans: any bare "true" or "false" (word‐boundaries) are replaced by "True" or "False" so that they can be recognized by Python’s literal_eval. • Single quotes are replaced by double quotes. • Parentheses “( … )” are replaced with square brackets “[ … ]”. This simple approach works for our examples. 2. The safe string is then passed to ast.literal_eval which returns a corresponding Python object. 3. Finally, the helper function tuple_to_list recursively converts any tuples (even if they occur nested) into lists. This solution makes some assumptions about the structure of the broken JSON (for example, that the boolean words or single quotes aren’t part of string values) but should serve as a good starting point.

Extract Code

I extracted the following code from that output: 

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import ast
import re

def fix_json(broken_json_str):
    """
    Fix a broken JSON string and return the parsed Python object.
    The "broken" JSON fixes include:
      • replacing any tuple-like parenthesis with square brackets,
      • converting single quotes to double quotes for keys/strings,
      • normalizing booleans from JSON style (true/false) or Python style (True/False)
        so that ast.literal_eval can parse it.
      
    Note: This function assumes that the broken JSON is not too complicated.
    """
    # Step 1. Fix booleans.
    # If the broken JSON uses lowercase true/false (valid JSON) but we want to use ast.literal_eval,
    # then we need to capitalize them (but be careful not to change content inside a string).
    # For a simple approach, we assume boolean words are not used inside string values.
    safe_str = re.sub(r'\btrue\b', 'True', broken_json_str, flags=re.IGNORECASE)
    safe_str = re.sub(r'\bfalse\b', 'False', safe_str,  flags=re.IGNORECASE)

    # Step 2. Convert single quotes to double quotes.
    # This regex looks for single quotes that are not escaped.
    # (For more complicated cases inside strings, a full parser would be needed.)
    safe_str = re.sub(r"(?<!\\)'", '"', safe_str)

    # Step 3. Replace parentheses used in place of square brackets.
    # This simple version replaces any ( with [ and ) with ]
    # This can be made more precise if necessary.
    safe_str = safe_str.replace('(', '[').replace(')', ']')

    # At this point, safe_str should be valid as a Python literal.
    try:
        parsed = ast.literal_eval(safe_str)
    except Exception as e:
        raise ValueError("Unable to parse the fixed JSON string. Original error: " + str(e))

    # Step 4. In case any tuples still remain (if for some reason a tuple got through),
    # recursively convert all tuples to lists.
    def tuple_to_list(item):
        if isinstance(item, tuple):
            return [tuple_to_list(elem) for elem in item]
        elif isinstance(item, list):
            return [tuple_to_list(elem) for elem in item]
        elif isinstance(item, dict):
            return {key: tuple_to_list(val) for key, val in item.items()}
        else:
            return item

    return tuple_to_list(parsed)

Run Code Interpreter

Running the following program: 

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import ast
import re

def fix_json(broken_json_str):
    """
    Fix a broken JSON string and return the parsed Python object.
    The "broken" JSON fixes include:
      • replacing any tuple-like parenthesis with square brackets,
      • converting single quotes to double quotes for keys/strings,
      • normalizing booleans from JSON style (true/false) or Python style (True/False)
        so that ast.literal_eval can parse it.
      
    Note: This function assumes that the broken JSON is not too complicated.
    """
    # Step 1. Fix booleans.
    # If the broken JSON uses lowercase true/false (valid JSON) but we want to use ast.literal_eval,
    # then we need to capitalize them (but be careful not to change content inside a string).
    # For a simple approach, we assume boolean words are not used inside string values.
    safe_str = re.sub(r'\btrue\b', 'True', broken_json_str, flags=re.IGNORECASE)
    safe_str = re.sub(r'\bfalse\b', 'False', safe_str,  flags=re.IGNORECASE)

    # Step 2. Convert single quotes to double quotes.
    # This regex looks for single quotes that are not escaped.
    # (For more complicated cases inside strings, a full parser would be needed.)
    safe_str = re.sub(r"(?<!\\)'", '"', safe_str)

    # Step 3. Replace parentheses used in place of square brackets.
    # This simple version replaces any ( with [ and ) with ]
    # This can be made more precise if necessary.
    safe_str = safe_str.replace('(', '[').replace(')', ']')

    # At this point, safe_str should be valid as a Python literal.
    try:
        parsed = ast.literal_eval(safe_str)
    except Exception as e:
        raise ValueError("Unable to parse the fixed JSON string. Original error: " + str(e))

    # Step 4. In case any tuples still remain (if for some reason a tuple got through),
    # recursively convert all tuples to lists.
    def tuple_to_list(item):
        if isinstance(item, tuple):
            return [tuple_to_list(elem) for elem in item]
        elif isinstance(item, list):
            return [tuple_to_list(elem) for elem in item]
        elif isinstance(item, dict):
            return {key: tuple_to_list(val) for key, val in item.items()}
        else:
            return item

    return tuple_to_list(parsed)




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: Traceback (most recent call last): File "/usr/src/app/main.py", line 34, in fix_json parsed = ast.literal_eval(safe_str) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.12/ast.py", line 66, in literal_eval node_or_string = parse(node_or_string.lstrip(" \t"), mode='eval') ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.12/ast.py", line 52, in parse return compile(source, filename, mode, flags, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "<unknown>", line 1 {"True": False, "b[]": [3, 4], "c"": []} ^ SyntaxError: unterminated string literal (detected at line 1) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/src/app/main.py", line 63, in <module> answer = fix_json('''{'True': False, 'b()': (3, 4), "c'": []}''') ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/src/app/main.py", line 36, in fix_json raise ValueError("Unable to parse the fixed JSON string. Original error: " + str(e)) ValueError: Unable to parse the fixed JSON string. Original error: unterminated string literal (detected at line 1) (<unknown>, line 1)

Substring Evaluation

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