When a constant is used as a condition, either it has no effect on the execution flow and it can be removed, or some code will never be executed
and it is a bug.
Code examples
Noncompliant code example
def foo():
    a = True
    if a: # Noncompliant: the condition is always true
      return 1
    else:
      return 2
Compliant solution
def foo():
    a = bar()
    if a:
      return 1
    else:
      return 2