The Three-Headed Dragon Of Nothingness

The Python developer's existential crisis in one image. Three heads of the same dragon representing different ways to express nothingness in Python: the menacing "NIL" (which doesn't exist in Python but haunts refugees from Ruby/Lisp), the intimidating "NULL" (a SQL/C++ concept that Python smugly rejects), and the derpy "None" (Python's actual singleton object for representing absence of value). Every Python newbie eventually learns that only the silly-looking one works, while the other two cause NameErrors that make you question your life choices at 2AM.