S Murthy <[email protected]> added the comment:
@steven.daprano In this case, the method f was created by via def. And calling
dis.dis(s) where s is the source code of f (say s = inspect.getsource(f)) shows
the bytecode both for the header and the body, as is clear enough from the
example I first posted.
>>> dis.dis('def f(x): return x**2')
1 0 LOAD_CONST 0 (<code object f at 0x10b0f7f60, file "<dis>",
line 1>)
2 LOAD_CONST 1 ('f')
4 MAKE_FUNCTION 0
6 STORE_NAME 0 (f)
8 LOAD_CONST 2 (None)
10 RETURN_VALUE
Disassembly of <code object f at 0x10b0f7f60, file "<dis>", line 1>:
1 0 LOAD_FAST 0 (x)
2 LOAD_CONST 1 (2)
4 BINARY_POWER
6 RETURN_VALUE
The first block of instructions here are for the def statement, and the second
block for the return statement.
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<https://bugs.python.org/issue39800>
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