Error Handling

### AttributeError
#### Error raised when using a method or property that doesn't exist for that data type
##### example
num = 42
num.append(5)
#AttributeError: 'int' object has no attribute 'append'

#### Interactive Debugging with the pdb Module
##### example with explanation
import pdb
def divide(a/b):
  pdb.set_trace()
  return a / b
print(divide(10,2))
#the output of this code will show the location of the file being run, the line where the .set_trace() was called and and interactive pdb prompt; entering help into the prompt a list of commands that can be used will be displayed