2 回答

TA貢獻1799條經驗 獲得超6個贊
然后,您可以遞歸地遍歷co_consts元組:
def x():
return {
"y": ("bla" + "ble", ("blo", ["blu", "blip"])),
("x", "z"): "blup",
True: False,
42: "hello" * 10,
None: 4 + 1j,
}
def get_consts(func):
def walk(cell):
if isinstance(cell, tuple):
for item in cell:
yield from walk(item)
else:
yield cell
yield from walk(func.__code__.co_consts)
for const in get_consts(x):
print(const)
印刷
None
blable
blo
blu
blip
blup
False
hellohellohellohellohellohellohellohellohellohello
(4+1j)
y
x
z
True
42
None
常量的順序可能與原始源中的不同;它們確實對應于反匯編中的順序:
5 0 LOAD_CONST 1 ('blable')
2 LOAD_CONST 2 ('blo')
4 LOAD_CONST 3 ('blu')
6 LOAD_CONST 4 ('blip')
8 BUILD_LIST 2
10 BUILD_TUPLE 2
12 BUILD_TUPLE 2
6 14 LOAD_CONST 5 ('blup')
7 16 LOAD_CONST 6 (False)
8 18 LOAD_CONST 7 ('hellohellohellohellohellohellohellohellohellohello')
9 20 LOAD_CONST 8 ((4+1j))
22 LOAD_CONST 9 (('y', ('x', 'z'), True, 42, None))
24 BUILD_CONST_KEY_MAP 5
26 RETURN_VALUE
編輯:如果您需要源中的原始字符串,則需要使用該ast模塊:
import ast
import inspect
class ConstantGatherer(ast.NodeVisitor):
def __init__(self):
super().__init__()
self.consts = []
def visit_Str(self, node):
self.consts.append(node.s)
def visit_Num(self, node):
self.consts.append(node.n)
cg = ConstantGatherer()
cg.visit(ast.parse(inspect.getsource(x)))
print(cg.consts)
輸出
['y', 'x', 'z', 42, 'bla', 'ble', 'blo', 'blu', 'blip', 'blup', 'hello', 10, 4, 1j]

TA貢獻1802條經驗 獲得超6個贊
如何使用以下代碼中3的函數從函數中獲取 const 參數值?finspect
def l2_norm(x, axis):
print("l2_norm", x, axis)
f = lambda x: l2_norm(x, axis=3)
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