PEP 8: E225 missing whitespace around operator

PEP 8 is a style guide for Python code. The specific error message you mentioned, "E225 missing whitespace around operator," indicates that there should be whitespace before and after an operator in your code. This helps improve code readability and maintain consistency.

For example, instead of writing:

x=y+2

You should write:

x = y + 2

By following the PEP 8 guidelines, your code will be more consistent and easier to read by other developers.