So I got this dictionary from a csv file and I would like to look for a specific key inside this dictionary (actually the og idea was to search for said key in the csv file and then make a dictionary from that key down) but I don't really know how to do it.

So far I got:

```
    df = pd.read_csv('data.csv')
    dict = df.to_dict(orient='dict')
    for index, line in enumerate(dict):
        if "Wavelength [nm]" in line:
         print(index)

```

The idea is to know the index of "Wavelength".