I'm new to Python and I'm trying to use ternary opertor which has this format (I think so)
value_true if <test> else value_false
Here's a snippet of code:
expanded = set()
while not someExpression:
continue if currentState in expanded else expanded.push(currentState)
# some code here
But Python doesn't like it and says:
SyntaxError: invalid syntax (pointed to if)
How to fix it?
Ternary operation in python using for expression, not statements. Expression is something that has value.
Example:
result = foo() if condition else (2 + 4)
# ^^^^^ ^^^^^^^
# expression expression
For statements (code blocks such as continue, for, etc) use if:
if condition:
...do something...
else:
...do something else...
What you want to do:
expanded = set()
while not someExpression:
if currentState not in expanded: # you use set, so this condition is not really need
expanded.add(currentState)
# some code here
print should not work in ternary operations.
one if condition else two. For statements: if condition: do_something().