**Tell us what’s happening:**

Describe your issue in detail here.

while i run this simple code in replit.com with the start code given by freeCodeCamp. it says …importError: attempted relative import with no known parent package. even I tried to run the test_model.py, the same thing happened. please let me know how to resolve this problem. is it because I did not install Python in locate system?

**Your code so far**

```
import numpy as np
def calculate(list):
ls = np.array(list)
print(ls)
```

**Your browser information:**

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36`

**Challenge:** Data Analysis with Python Projects - Mean-Variance-Standard Deviation Calculator

**Link to the challenge:**