Why can't I access globals in AWS Lambda

Question

I am trying to set up a AWS Lambda function and as always, I am keeping my constants in global variables. But for some reason, I am getting the error shown below. I do this all the time and never have issues. I've typed this myself and retyped it a bunch of times so no weird unicode characters. I think I'm going crazy.

Answer 1

This is because you set b = False in the same function. By setting it in the function it redefines the variable as a local variable rather than a global variable.

To use it like this you need to define b as a global variable such as

def lambda_handler(event, context):
    global b
    print(b[0])
    b = False