Is Using eval In Python A Bad Practice?

Answer

Yes, using eval is a bad practice. Just to name a few reasons:

1. There is almost always a better way to do it
2. Very dangerous and insecure
3. Makes debugging difficult
4. Slow

In your case you can use setattr instead:

classSong:"""The class to store the details of each song"""
    attsToStore=('Name','Artist','Album','Genre','Location')def __init__(self):for att in self.attsToStore:
            setattr(self, att.lower(),None)def setDetail(self, key, val):if key in self.attsToStore:
            setattr(self, key.lower(), val)