PyCharm: "Simplify Chained Comparison"

I have an integer value x, and I need to check if it is between a start and end values, so I write the following statements:

    if x >= start and x <= end:
        # do stuff

This statement gets underlined, and the tooltip tells me that I must

simplify chained comparison

As far as I can tell, that comparison is about as simple as they come. What have I missed here?

In Python you can "chain" comparison operations which just means they are "and"ed together. In your case, it'd be like this:

    if start <= x <= end:

Reference: https://docs.python.org/3/reference/expressions.html#comparisons

From: stackoverflow.com/q/26502775

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