When I run my python program, unexpected "expected an indented block" errors keep popping up. I don't see anything wrong with the code, so please help.
def function
if mode == 1:
#code
elif mode == 2:
#code
else:
#code
while True:
while True:
#code here
Each time you type : at the end of the line, Python expects a statement or expression indented in the next block.
To create an "empty" loop, use pass:
def function():
if mode == 1:
pass
# code will go here
elif mode == 2:
pass
# code will go here
else:
pass
# code will go here
while True:
while True:
pass
# code here
the error occurs at the first "While True" loop
The reason it happens, is because after the else: Python is expecting a statement or an expression, and since the first one of those is the while True:, and its not indented to be under the else: block you get that exception.
First of all, after def function there must be parenthesis followed by parenthesis and a colon. I'm not sure, but are you indenting after the if statements. AIs there legit code where your commenting or is that just a comment? If there is no code, it will raise an error due to the fact that there must be an indented block after a control line. For example,
def Function(mode):
if mode == 0:
print "mode is 0"
elif mode == 1:
print "mode is 1"
else:
print "unknown mode"
while True:
while True:
Function(5)
#do What ever here
This will not raise an Exception
IMPORTANT: Make sure you break your code otherwise it will go forever.
I figured out the problem, but thanks anyway. Python needs you to put code in the if and else statements or else it will think that you forgot to indent in the rest of the code. But thanks!
#codecomments, when replaced with code, would need to be indented with respect to the precedingif,elif, orelse. If they are lined up with them, as they are now, then the bodies are empty and it's a syntax error.:afterdef function.#code- at leastpasscommand.if/elif/else/while/forcan't have empty blocks - comments are not treated as correct blocks.SyntaxError: invalid syntaxthen. So I think it's just a copy-paste issue.