IndentationError: expected an indented block

Question

def hello():
... print("Hi")
File "(stdin)", line 2
print("Hi")
^
IndentationError: expected an indented block

Answer 1

If you're using python in a console/terminal, each new line in a code block begins with '...', but you still need to indent the lines manually. So indent the second line with a tab or a couple of spaces (usually 4).
The whole thing should look like this:
>>> def f():
... print('yay')
...
>>> f()
yay

Answer 2

Please link your code

Answer 3

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 .
http://net-informations.com/python/err/indentation.htm