Now, we’re ready to program! Leave the visualizer and go to OnlineGDB to write your program. Here is the pseudocode for your program:

Question

Define a function called “seven_checker” that will do the following things:

Iterate over a list.
Check to see whether the number 7 is in the list.
Print how many times the number 7 appears in the list.

Answer 1

Here is a possible implementation of the "seven_checker" function in Python:

```python
def seven_checker(lst):
count = lst.count(7)
print(f"The number 7 appears {count} time(s) in the list.")
```

This function takes a list as a parameter and uses the `count` method to count how many times the number 7 appears in the given list. Then, it prints the count using a formatted string.

You can call this function with your desired list to check the occurrences of the number 7, for example:

```python
my_list = [1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 7]
seven_checker(my_list)
```

Output:
```
The number 7 appears 3 time(s) in the list.
```