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Python Python Basics (2015) Logic in Python If This Then That

Posted by john larson
john larson
16,594 Points

error w/ if not comparison

on the 3rd line of code I'm not getting the three >>> and I think that is messing up the code. It looks to me like I'm following along, but obviously Keneth is doing something I'm missing cause he has the three >>>

>>> age = 22
>>> if age > 20:
... if not age > 25:
  File "<stdin>", line 2
    if not age > 25:
     ^
IndentationError: expected an indented block
>>>

3 Answers

Chris Adamson
Chris Adamson
132,143 Points
Chris Adamson
Chris Adamson
132,143 Points

It's not clear how Ken got the additional prompt (>>>) but Python requires that 2nd if statement to be indented:

age = 22
if age > 20:
  if not age > 25:
Steven Parker
Steven Parker
229,783 Points
Steven Parker
Steven Parker
229,783 Points

In the video, the line that shows if age > 20000: is left over from the previous demonstration, and not freshly entered. He erased the rest of the previous demonstration leaving only the >>> prompt.

A freshly entered if statement will cause the prompt to change to ... as a reminder that the next line should probably be indented.

john larson
john larson
16,594 Points

Thank you for the info that ... means to indent. It is bizarre though, I watched closely again and Kenneth does update that 20000 to 25000 but never indents that 2nd if.

Jose Then
Jose Then
2,747 Points
Jose Then
Jose Then
2,747 Points

I know this is older information from previous posts but I had to watch this again as well. As Steven Parker started he does erase some of the information as he goes and if you do not do the same like him in the Treehouse workspace you will get the same errors you are possibly getting now.

I started the workspace completely over and I was now able to get the exact information you were supposed to by following EXACTLY how he does it and where he erases lines at. It will then work for you.