EOF while scanning triple-quoted string literal

This error occurs when Python reaches the end of a triple-quoted string block without finding the closing quotes for it. It can happen in multi-line strings or docstrings when the closing quotes are accidentally missing, or when there is a syntax error within the string block that prevents Python from recognizing the end of the string.

For example, consider the following code:

my_string = """This is a
multi-line string that
has no closing quotes

In this case, Python will raise an "EOF while scanning triple-quoted string literal" error because it reaches the end of the file before finding the closing quotes for the string.

To fix this error, make sure that all triple-quoted string blocks have matching opening and closing quotes, and check for any syntax errors within the string block that could be preventing Python from recognizing the end of the string.