问答详情
源自:1-4 web.py测试

测试文件报错

E:\pycharmProject\venv\Scripts\python.exe E:/pycharmProject/hello.py

Traceback (most recent call last):

  File "E:\pycharmProject\venv\lib\site-packages\web\utils.py", line 526, in take

    yield next(seq)

StopIteration


The above exception was the direct cause of the following exception:


Traceback (most recent call last):

  File "E:/pycharmProject/hello.py", line 6, in <module>

    app = web.application(urls, globals())

  File "E:\pycharmProject\venv\lib\site-packages\web\application.py", line 62, in __init__

    self.init_mapping(mapping)

  File "E:\pycharmProject\venv\lib\site-packages\web\application.py", line 130, in init_mapping

    self.mapping = list(utils.group(mapping, 2))

  File "E:\pycharmProject\venv\lib\site-packages\web\utils.py", line 531, in group

    x = list(take(seq, size))

RuntimeError: generator raised StopIteration


提问者:慕九州008247 2018-09-27 15:47

个回答

  • qq289此生有你
    2019-04-16 11:37:59

    https://img.mukewang.com/5cb54e0a0001171308860262.jpg改成这样就好了

  • 念奴娇
    2019-03-01 11:28:01

    错误原因,python3以上安装执行应pip install web.py==0.40-dev1,还要修改utils文件的526行

    yield next(seq)

    to:

    try:
        yield next(seq)
    except StopIteration:
        return

    做这个之前,请先卸载之前的安装pip uninstall web.py

  • 慕九州008247
    2018-09-30 09:06:23

    To judge from the file paths, it looks like you're running Python 3.7. If so, you're getting caught by new-in-3.7 behavior described here:

    PEP 479 is enabled for all code in Python 3.7, meaning that StopIteration exceptions raised directly or indirectly in coroutines and generators are transformed into RuntimeError exceptions. (Contributed by Yury Selivanov in bpo-32670.)

    Before this change, a StopIteration raised by, or passing through, a generator simply ended the generator's useful life (the exception was silently swallowed). The module you're using will have to be recoded to work as intended with 3.7.

    Chances are they'll need to change:

    yield next(seq)

    to:

    try:
        yield next(seq)
    except StopIteration:
        return