Resolving json.decoder.JSONDecodeError: Understanding Common JSON Issues in Python

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The Problem

[[See Video to Reveal this Text or Code Snippet]]

This indicates that Python expects a valid JSON structure but encounters an unexpected character early in the data. In this case, the issue stems from the formatting of the JSON file itself.

The Code

Let’s take a look at the code responsible for writing the data to the JSON file and when reading it back:

[[See Video to Reveal this Text or Code Snippet]]

The JSON File Format

The JSON file being created has the following format:

[[See Video to Reveal this Text or Code Snippet]]

Identifying the Issue

The problematic aspect of the current format is evident. In the JSON data:

The second character is a comma, which is not valid in JSON syntax.

There is a missing opening brace { before the first key-value pair.

Due to these errors, Python fails to decode the JSON content correctly.

The Solution

1. Correct the JSON Formatting

To resolve the issue, ensure your JSON data complies with proper JSON standards. A correctly formatted JSON structure looks like this:

[[See Video to Reveal this Text or Code Snippet]]

2. Update Your Code

Make sure that your write operation constructs a valid JSON output:

[[See Video to Reveal this Text or Code Snippet]]

3. Test Your Changes

Conclusion