ValueError: Specified a sep and a delimiter; you can only specify one.

This error occurs when you try to use both "sep" and "delimiter" parameters together in a method that only allows one of them.

"sep" is used to specify the separator between the values in a string, while "delimiter" is used to specify the character used to separate the fields in a CSV file.

For example, if you use the "split()" method on a string and specify both "sep" and "delimiter", you will get this error. The correct way to use this method would be to use only one of these parameters.

Here is an example that will raise this error:

my_string = "apple,banana,grape"
my_string.split(sep=",", delimiter=":")

To fix this error, you can remove one of the parameters:

my_string.split(sep=",")

or

my_string.split(delimiter=":")