我无法从pytest函数导入模块。我知道有100万个问题,但是我已经读了一堆,但仍然难以理解。
$ tree
.
??? code
??? eight_puzzle.py
??? missionaries_and_cannibals.py
??? node.py
??? search.py
??? test
??? test_eight_puzzle.py
??? test_search.py
2 directories, 6 files
$
$ grep import code/test/test_search.py
import sys
import pytest
import code.search
$
$ pytest
...
ImportError while importing test module '~/Documents/code/test/test_search.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
code/test/test_search.py:14: in <module>
import code.search
E ModuleNotFoundError: No module named 'code.search'; 'code' is not a package
...
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我希望那能奏效。“代码”是一个包,对吗?Python 3中的软件包是其中包含.py文件的任何目录。
我也尝试了相对导入-- from .. import search …
我有几个速率限制器类(其中一个未显示),我想为其创建 ABC。该request方法是一个异步上下文管理器。通过下面显示的代码我得到
“请求”的签名与超类型“RateLimiterInterface”不兼容
如果我尝试用 装饰抽象方法@asynccontextmanager,则会出现输入错误:
“asynccontextmanager”的参数 1 具有不兼容的类型“Callable[[RateLimiterInterface], Coroutine[Any, Any, AsyncIterator[Any]]]”;预期“Callable[...,AsyncIterator[]]”
我怎样才能做到这一点?
class RateLimiterInterface(abc.ABC):
@abc.abstractmethod
async def request(self) -> AsyncIterator:
pass
class LeakyBucketRateLimiter(RateLimiterInterface):
def __init__(self, max_tokens: Optional[int] = None, rate: float = 60) -> None:
self.max_tokens = max_tokens
self.rate = rate
self._bucket = max_tokens
self._last_added_at = time.time()
@contextlib.asynccontextmanager
async def request(self) -> AsyncIterator:
if self._bucket is None:
yield
return
while not self._bucket:
await asyncio.sleep(0)
self._add_tokens(int((time.time() - self._last_added_at) * self.rate))
self._bucket -= 1
yield
return
def _add_tokens(self, …Run Code Online (Sandbox Code Playgroud)