How to Convert JSON Data to String Objects in Python 2?

How to Get String Objects from JSON in Python 2

Accessing JSON data using Python can yield Unicode objects despite ASCII-encoded text sources. Certain libraries demand string objects, causing compatibility issues.

To resolve this in Python 2, consider using PyYAML as an alternative JSON parser:

<code class="python">import yaml

json_str = '["a", "b"]'
data = yaml.safe_load(json_str)</code>

Results:

['a', 'b']  # String objects

Notes:

• PyYAML returns string objects for ASCII-encoded data, but Unicode objects for Unicode-encoded data.
• Use yaml.safe_load() for JSON files.
• For more support with YAML 1.2 and low number parsing, use Ruamel YAML.

Conversion:

If you can't guarantee ASCII values, use a conversion function to ensure string objects:

<code class="python">def to_str(obj):
    if isinstance(obj, unicode):
        return str(obj)
    elif isinstance(obj, list):
        return [to_str(item) for item in obj]
    elif isinstance(obj, dict):
        return {to_str(key): to_str(value) for key, value in obj.items()}
    else:
        return obj

data = json.loads(json_str, object_hook=to_str)</code>

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