Solve the programming task below in a Python markdown code block.
```if-not:racket
Write a function called `repeat_str` which repeats the given string `src` exactly `count` times.
```
```if:racket
Write a function called `repeat-string` which repeats the given string `str` exactly `count` times.
```
Also feel free to reuse/extend the following starter code:
```python
def repeat_str(repeat, string):
```