'generator' object is not callable

The error message "'generator' object is not callable" typically occurs when you try to call a generator object as if it were a function. In Python, a generator is an iterator that generates a sequence of values on the fly, using the yield keyword.

To resolve this issue, you need to iterate over the generator object using a loop or a specific method like `next()` to retrieve its values. Here's an example:

def my_generator():
    yield 1
    yield 2
    yield 3

gen = my_generator()  # create a generator object

# Iterate over the generator using a loop
for value in gen:
    print(value)

# or use the next() function
print(next(gen))
print(next(gen))
print(next(gen))

In this example, `my_generator()` is a generator function that yields three values. The `gen` object is created by calling `my_generator()`, and then you can iterate over it using a loop or call `next()` on it to retrieve each value.

Make sure you're not treating a generator object as a regular function by mistakenly using parentheses to call it.