python3.7.2使用web.py报错解决办法

python3.7.2使用web.py报错解决办法

首先请确保使用

pip install web.py==0.40-dev1

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安装web.py。

运行官网实例：

import web

urls = (

    '/(.*)', 'hello'

)

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

class hello:       

    def GET(self, name):

        if not name:

            name = 'World'

        return 'Hello, ' + name + '!'

if __name__ == "__main__":

    app.run()

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却出现报错，如下：

Traceback (most recent call last):

  File "D:\Program Files\Python\Python37\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 "D:\Python\hello.py", line 6, in

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

  File "D:\Program Files\Python\Python37\lib\site-packages\web\application.py", line 62, in __init__

    self.init_mapping(mapping)

  File "D:\Program Files\Python\Python37\lib\site-packages\web\application.py", line 130, in init_mapping

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

  File "D:\Program Files\Python\Python37\lib\site-packages\web\utils.py", line 531, in group

    x = list(take(seq, size))

RuntimeError: generator raised StopIteration

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修改Lib\site-packages\web 下的utils.py文件。

将第526行的

yield next(seq)

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修改为

try:

    yield next(seq)

except StopIteration:

    return

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重新运行实例代码将正常运行，输出如下：

http://0.0.0.0:8080/

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在浏览器中访问

http://127.0.0.1:8080/

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显示

Hello, World!

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作者：FishTailStudio

来源：CSDN

原文：https://blog.csdn.net/gibiguvuggu/article/details/86223332

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