How to Correctly Read JSON Data from a File in Python?

Reading JSON from a File

Reading JSON from a file can seem like a simple task, but you may encounter errors if not done correctly. Let's address two common errors you may have encountered.

Error: json.loads() with File Content

You used json.loads(), which expects a string argument. However, you passed the file object json_data, which contains byte data. To read the file directly, use json.load() instead:

import json

with open('strings.json') as f:
    d = json.load(f)
    print(d)

Error: json.load() with Invalid JSON

If you see errors like "Extra data," there may be invalid JSON content in the file. Validate your JSON using a tool like JSONLint or consult documentation on JSON formatting.

Additional Notes:

• Remember to use json.load() for reading files and json.loads() for parsing strings.
• Validate JSON before processing it to avoid errors caused by invalid formatting.

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