[英]fooling imported script so it can import module which does not exist
I'm writing foobaz python app which uses plugins (in rules/plugins/
directory) and tests to these plugins (in rules/tests/
) from project foobar . 我正在编写foobaz python应用程序,该应用程序使用插件(在
rules/plugins/
目录中)并从foobar项目对这些插件进行测试(在rules/tests/
)。 I do not control these (both plugins and their tests). 我不控制这些(插件及其测试)。
Because of import statements in the tests, I can not figure out how to run these. 由于测试中有import语句,因此我无法弄清楚如何运行这些语句。 Test looks like this:
测试看起来像这样:
$ cat rules/tests/test_something.py
import unittest
from foobar.rules.plugins import something
class TestSomething(unittest.TestCase):
def test_something_equals(self):
self.assertEqual(1, something.equals(1))
Plugin itself can look like this: 插件本身可以如下所示:
$ cat rules/plugins/something.py
def equals(i):
return i
And script I'm using to run all the tests look like this: 我用来运行所有测试的脚本如下所示:
$ cat tests.py
#!/usr/bin/env python
import sys
import unittest
sys.path.append('rules/tests/')
from test_something import TestSomething
if __name__ == '__main__':
unittest.main()
When I want to execute the tests, I (no surprise) get: 当我想执行测试时,我(不足为奇)得到:
$ ./tests.py
Traceback (most recent call last):
File "./tests.py", line 8, in <module>
from test_something import TestSomething
File "rules/tests/test_something.py", line 6, in <module>
from foobar.rules.plugins import something
ImportError: No module named foobar.rules.plugins
Is there some way I can get this running given I can not edit plugin or test? 如果我无法编辑插件或测试,是否可以通过某种方式使其运行?
If I could edit test, I would do: 如果可以编辑测试,则可以执行以下操作:
- from foobar.rules.plugins import something
+ import sys
+ sys.path.append('rules/plugins/')
+ import something
and it would work (tested). 并且可以正常工作(经过测试)。
OK, after a discussion with a colleagues, there is a really simple way how to resolve this: 好,与同事讨论后,有一种非常简单的方法来解决此问题:
$ mkdir foobar
$ mv rules/ foobar/
$ touch foobar/__init__.py
$ touch foobar/rules/__init__.py
$ touch foobar/rules/plugins/__init__.py
This way test will be able to find what it needs. 这样一来,测试就能找到需要的东西。 I did not realized this obvious thing before.
我以前没有意识到这一明显的事情。
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