pywebview出错

鱼cpython学习者 · 发表于 2021-6-26 14:52:43

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想要用pywebview+flask做一个小demo，代码如下：

import flask
import webview
app = flask.Flask(__name__)
@app.route('/')
def home_page():
return flask.render_template('index.html')
@app.route('/admin/', methods=['GET', 'POST'])
def hello_admin():
if flask.request.form['password'] == '229773fxy':
return "welcome, admin!"
else:
return "warning, wrong password, please check your password again"
if __name__ == '__main__':
window = webview.create_window(
title='demo',
url=app,
confirm_close=True
)
cn = {
'global.quitConfirmation': u'确定关闭?'
}
webview.start(localization=cn, gui='mshtml')

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index.html内容如下：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="http://127.0.0.1:5000/admin/" method="post">
<p>Enter Password:</p>
<input type="password" name="password" />
<br>
<input type="submit" value="done"/>
</form>
</body>
</html>

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但当我按下“done”按钮后，显示无法访问此页面(也就是https://127.0.0.1:5000/admin/这个网址)
我自己的想法是，可能flask服务没有开启，所以无法访问
但如果在代码中加上app.run(__name__)时，主进程被阻塞，gui界面没有出现
我想使用multiprocessing把flask服务放到另一个进程运行，结果失败了:

Traceback (most recent call last):
File "first_flask.py", line 22, in <module>
Process(target=
File "D:\anaconda3\lib\multiprocessing\process.py", line 121, in start
self._popen = self._Popen(self)
File "D:\anaconda3\lib\multiprocessing\context.py", line 224, in _Popen
return _default_context.get_context().Process._Popen(process_obj)
File "D:\anaconda3\lib\multiprocessing\context.py", line 327, in _Popen
return Popen(process_obj)
File "D:\anaconda3\lib\multiprocessing\popen_spawn_win32.py", line 93, in __init__
reduction.dump(process_obj, to_child)
File "D:\anaconda3\lib\multiprocessing\reduction.py", line 60, in dump
ForkingPickler(file, protocol).dump(obj)
TypeError: cannot pickle '_thread.lock' object
(base) E:\coding file\MyPythonProjects\Flask\001test>Traceback (most recent call last):
File "<string>", line 1, in <module>
File "D:\anaconda3\lib\multiprocessing\spawn.py", line 116, in spawn_main
exitcode = _main(fd, parent_sentinel)
File "D:\anaconda3\lib\multiprocessing\spawn.py", line 126, in _main
self = reduction.pickle.load(from_parent)
EOFError: Ran out of input

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实在没办法，有没有人知不知道如何解决？

nahongyan1997 · 发表于 2021-6-27 08:48:16

url=app,

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你确定这句该这么写吗

人家要url 你把服务器对象给传进去了

鱼cpython学习者 · 发表于 2021-7-5 16:03:25

nahongyan1997 发表于 2021-6-27 08:48
你确定这句该这么写吗

人家要url 你把服务器对象给传进去了

可是官方文档也允许这么做啊：

url - URL to load. If the URL does not have a protocol prefix, it is resolved as a path relative to the application entry point. Alternatively a WSGI server object can be passed to start a local web server.

nahongyan1997 · 发表于 2021-7-7 13:09:49

你的代码在我这里运行正常

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