Putting in an extra space or leaving one out where it is needed will surely generate an error message . Some common causes of this error include:
- Forgetting to indent the statements within a compound statement
- Forgetting to indent the statements of a user-defined function.
The error message IndentationError: expected an indented block would seem to indicate that you have an indentation error. It is probably caused by a mix of tabs and spaces. The indentation can be any consistent white space . It is recommended to use 4 spaces for indentation in Python, tabulation or a different number of spaces may work, but it is also known to cause trouble at times. Tabs are a bad idea because they may create different amount if spacing in different editors .