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from the zip:
>>> dis.dis(mod.test)
 3 0 LOAD_GLOBAL 0 (print)
 2 LOAD_FAST 0 (val)
 4 CALL_FUNCTION 1
 6 POP_TOP
 8 LOAD_CONST 0 (None)
 10 RETURN_VALUE
from the filesystem:
>>> dis.dis(mod.test)
 2 0 LOAD_FAST 0 (val)
 2 POP_JUMP_IF_TRUE 8
 4 LOAD_GLOBAL 0 (AssertionError)
 6 RAISE_VARARGS 1
 3 >> 8 LOAD_GLOBAL 1 (print)
 10 LOAD_FAST 0 (val)
 12 CALL_FUNCTION 1
 14 POP_TOP
 16 LOAD_CONST 0 (None)
 18 RETURN_VALUE