not enough values to unpack (expected 4, got 1)

The message "not enough values to unpack (expected 4, got 1)" typically occurs when you are trying to unpack an iterable object into multiple variables, but the number of values in the iterable doesn't match the number of variables you are trying to unpack into.

For example, if you have a tuple with four values and you try to unpack it into four variables, it should work fine. However, if you try to unpack it into fewer than four variables or more than four variables, you will get this error.

Here's an example to illustrate this:

t = (1, 2, 3, 4)
a, b, c, d = t  # Unpacking into four variables, no error

x, y = t  # Unpacking into two variables, error: not enough values to unpack

p, q, r, s, u = t  # Unpacking into five variables, error: too many values to unpack

To fix this error, make sure the number of variables matches the number of values in the iterable you are trying to unpack.