python - 将单个装饰器应用于多个函数

Question

我搜索过这个，但我看到的结果恰恰相反:将多个装饰器应用于单个函数。

我想简化这个模式。有没有办法将这个单个装饰器应用于多个函数？如果没有，我如何重写上面的内容以减少重复？

from mock import patch

@patch('somelongmodulename.somelongmodulefunction')
def test_a(patched):
    pass  # test one behavior using the above function

@patch('somelongmodulename.somelongmodulefunction')
def test_b(patched):
    pass  # test another behavior

@patch('somelongmodulename.somelongmodulefunction')
def test_c(patched):
    pass  # test a third behavior

from mock import patch

patched_name = 'somelongmodulename.somelongmodulefunction'

@patch(patched_name)
def test_a(patched):
    pass  # test one behavior using the above function

@patch(patched_name)
def test_b(patched):
    pass  # test another behavior

@patch(patched_name)
def test_c(patched):
    pass  # test a third behavior

Answer 1

如果你只想让“long”函数调用一次并用结果修饰所有三个函数，就这样做吧。

my_patch = patch('somelongmodulename.somelongmodulefunction')

@my_patch
def test_a(patched):
    pass

@my_patch
def test_b(patched):
    pass