To create a Python combination generator, you can use the `combinations()`

function from the `itertools`

module in the Python standard library. Here’s an example:

```
from itertools import combinations
my_list = ['a', 'b', 'c', 'd']
my_gen = combinations(my_list, 2)
for val in my_gen:
print(val)
```

In this example, we import the `combinations()`

function from the `itertools`

module and define a list `my_list`

containing some values.

We then use the `combinations()`

function to create a new generator `my_gen`

that generates all possible combinations of two elements from `my_list`

.

We use a `for`

loop to iterate over the values generated by `my_gen`

and print them to the console.

The resulting output will be:

```
('a', 'b')
('a', 'c')
('a', 'd')
('b', 'c')
('b', 'd')
('c', 'd')
```

This example demonstrates how to use the `combinations()`

function to generate all possible combinations of a set of values. You can modify this example to generate combinations of different lengths or from different sets of values.

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