Error messages

For the previous example, if we enter 100/(1+0.1)^2 instead of 100/(1+0.1), we will see the following error message, which tells us that ^ is not supported:

>>>100/(1+0.1)^2
Traceback (most recent call last):
File "<psyhell#1>, line 1, in <module>
100/(1+0.1)^2
TypeError: unsupported operand type(s) for ^: 'float' and 'int'
>>>

Tip

Downloading the example code

You can download the example code files for all Packt books you have purchased from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

At this stage, a new user needs to pay attention to the last sentence of the error message. Obviously, the last line tells us that ^ is not supported. Again, for a power function, we should use double multiplications, **, instead of a karat, ^. In Chapter 2, Using Python as an Ordinary Calculator, we will show that a true power function, pow(), is available.