Question: ```
import numpy as np
from scipy.integrate import odeint
from scipy.signal import find_peaks

```

The third line triggers the following error:

```
ImportError: cannot import name find_peaks

```

What is going on here? I haven't made any changes to the scipy package that I am aware of. Also it is worth noting that just importing scipy.signal does not produce an error.

Answer: 
Check your `scipy` version:

```
import scipy
print(scipy.__version__)

```

`find_peaks` is new in version 1.1.0. 

If you want to update:

```
pip install scipy --upgrade

```
I just had to reinstall scipy and it worked on Mac OS with M1 and Python 3.9

`pip uninstall scipy`

and then

`pip install scipy`