Why Use Double Quotes Instead of Single Quotes for JSON Strings in Python?

Single vs Double Quotes in JSON: A Syntax Distinction

JSON (JavaScript Object Notation) is a text-based data format that uses key-value pairs to represent data. When defining JSON strings in Python, a common question arises: whether to use single or double quotes.

As the provided code snippet illustrates, using single quotes (') for JSON strings is incorrect (line 1), while using double quotes (") is correct (line 2). This is because JSON syntax strictly mandates the usage of double quotes for its strings.

While Python generally allows interchangeability between single and double quotes in string literals, this is not the case with JSON. JSON's syntax is strictly defined and requires the use of double quotes to enclose strings.

Therefore, when defining JSON strings in Python, it is essential to adhere to the proper syntax and use double quotes. Failure to do so, as in the case of line 1 in the code snippet, will result in a JSON syntax error.

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