I have a piece of code that uses, websocket and run_forever()
the program runs fine and suddenly just crashes with the follwoing output.
I have no idea how to trace this error and it just keeps happening at will :)
Requesting any help on how to debug this.
Exception in thread WebSocketClient:
Traceback (most recent call last):
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.2544.0_x64__qbz5n2kfra8p0\lib\threading.py", line 1016, in _bootstrap_inner
self.run()
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.2544.0_x64__qbz5n2kfra8p0\lib\threading.py", line 953, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\cgs\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\ws4py\websocket.py", line 531, in run
self.terminate()
File "C:\Users\cgs\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\ws4py\websocket.py", line 431, in terminate
self.closed(1006, "Going away")
TypeError: WsClient.closed() takes 1 positional argument but 3 were given
Related
I get this error while retrieving the program I wrote with kivy.
I have to use vpn
Downloading https://dl.google.com/android/repository/android-ndk-r19c-linux-x86_64.zip
Traceback (most recent call last):
File "/home/mm/kivyenv/bin/buildozer", line 8, in <module>
sys.exit(main())
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/scripts/client.py", line 13, in main
Buildozer().run_command(sys.argv[1:])
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/__init__.py", line 1047, in run_command
self.target.run_commands(args)
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/target.py", line 92, in run_commands
func(args)
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/target.py", line 102, in cmd_debug
self.buildozer.prepare_for_build()
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/__init__.py", line 169, in prepare_for_build
self.target.install_platform()
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/targets/android.py", line 665, in install_platform
self._install_android_ndk()
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/targets/android.py", line 455, in _install_android_ndk
self.buildozer.download(url,
File "/home/mm/kivyenv/lib/python3.8/site-packages/buildozer/__init__.py", line 677, in download
urlretrieve(url, filename, report_hook)
File "/usr/lib/python3.8/urllib/request.py", line 1866, in retrieve
raise ContentTooShortError(
urllib.error.ContentTooShortError: <urlopen error retrieval incomplete: got only 261037633 out of 823376982 bytes>
From the urllib documentation:
exception urllib.error.ContentTooShortError(msg, content)
This exception is raised when the urlretrieve() function detects that the amount of the downloaded data is less than the expected amount (given by the Content-Length header). The content attribute stores the downloaded (and supposedly truncated) data.
In practice, it's likely that the VPN terminated the socket. You may need to implement retry/resume capability in your program.
I am currently working on a program that will react to the pressing of a key. I am currently using the module "keyboard".
`import keyboard
rk = keyboard.record(until='Esc')
keyboard.play(rk, speed_factor=1)
`
But when I run it, it gives me:
'Exception in thread Thread-1:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/threading.py", line 932, in _bootstrap_inner
self.run()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/Users/user/PycharmProject/AUTOCLICKER/venv/lib/python3.8/site-packages/keyboard/init.py", line 294, in listen
_os_keyboard.listen(self.direct_callback)
File "/Users/user/PycharmProject/AUTOCLICKER/venv/lib/python3.8/site-packages/keyboard/_darwinkeyboard.py", line 430, in listen
raise OSError("Error 13 - Must be run as administrator")
OSError: Error 13 - Must be run as administrator'
What could I do to fix this? Is there any easier module to work with?
thanks Triobro3
Run your script with administrator privileges with "sudo" command and see if it fixes your problem.
Working with Python 3.7.3, still figuring out how exception handling works.
I'm writing an xmpp bot, using slixmpp. I'm trying to make it so that if it loses connection to the server, it will try to reconnect. There doesn't seem to be any way to do this built in to slixmpp, so I'm write something into my own code to do it.
I've imported slixmpp as xmpp, and using it's send_raw() method to test that we're still connected to the server.
while True:
time.sleep(5) # Send every 5 seconds just for testing purposes
xmpp.send_raw('aroo?')
When I sever the connection to the server, this is what it spits out:
Traceback (most recent call last):
File "C:\Program Files\Python37\lib\threading.py", line 917, in _bootstrap_inner
self.run()
File "testcom.py", line 19, in run
eval(self.thing)()
File "testcom.py", line 28, in check_conn
xmpp.send_raw('aroo?')
File "C:\Program Files\Python37\lib\site-packages\slixmpp\xmlstream\xmlstream.py", line 926, in send_raw
raise NotConnectedError
slixmpp.xmlstream.xmlstream.NotConnectedError
I'm assuming that "NotConnectedError" is the exception that I need to catch, so I put the code inside a try block, like so:
try:
while True:
time.sleep(5) # Send every 5 seconds just for testing purposes
xmpp.send_raw('aroo?')
except NotConnectedError:
# Do a thing
pass
And this is what I get:
Traceback (most recent call last):
File "testcom.py", line 28, in check_conn
xmpp.send_raw('aroo?')
File "C:\Program Files\Python37\lib\site-packages\slixmpp\xmlstream\xmlstream.py", line 926, in send_raw
raise NotConnectedError()
slixmpp.xmlstream.xmlstream.NotConnectedError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Program Files\Python37\lib\threading.py", line 917, in _bootstrap_inner
self.run()
"testcom.py", line 19, in run
eval(self.thing)()
File "testcom.py", line 29, in check_conn
except NotConnectedError:
NameError: name 'NotConnectedError' is not defined
Can anyone tell me what I'm doing wrong here?
Thanks!
I can't see your imports but make sure you have from slixmpp.xmlstream.xmlstream import NotConnectedError otherwise it doesn't have a definition for NotConnectedError within the application. You could also change NotConnectedError to xmpp.xmlstream.xmlstream.NotConnectedError if you don't want to have it imported as well.
I have pure project on CherryPy and want AuthTool to use bcrypt module for password processing.
But when I put "import bcrypt" line into AuthTool.py the CherryPy tells me:
[17/Nov/2017:17:55:57] ENGINE Error in background task thread function <bound method Autoreloader.run of <cherrypy.process.plugins.Autoreloader object at 0x0000026948C82E80>>.
AttributeError: cffi library '_bcrypt' has no function, constant or global variable named '__loader__'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\site-packages\cherrypy\process\plugins.py", line 519, in run
self.function(*self.args, **self.kwargs)
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\site-packages\cherrypy\process\plugins.py", line 651, in run
for filename in self.sysfiles() | self.files:
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\site-packages\cherrypy\process\plugins.py", line 635, in sysfiles
hasattr(m, '__loader__') and
SystemError: <built-in function hasattr> returned a result with an error set
Exception in thread Autoreloader:
AttributeError: cffi library '_bcrypt' has no function, constant or global variable named '__loader__'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\threading.py", line 916, in _bootstrap_inner
self.run()
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\site-packages\cherrypy\process\plugins.py", line 519, in run
self.function(*self.args, **self.kwargs)
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\site-packages\cherrypy\process\plugins.py", line 651, in run
for filename in self.sysfiles() | self.files:
File "C:\Users\Serge\AppData\Local\Programs\Python\Python36\lib\site-packages\cherrypy\process\plugins.py", line 635, in sysfiles
hasattr(m, '__loader__') and
SystemError: <built-in function hasattr> returned a result with an error set
After that everithing works fine but Autoloader. I have bcrypt (3.1.4) and CherryPy (11.1.0).
Can I do something to fix this issue this autoreloader? Merci.
You could disable the autoloader. Set 'engine.autoloader.on' to False. Of course you will loose auto loading when monitored files are changed and thus you'll need to manually restart the server on each change. Another way would be to put the server in production mode. See available mode and what they do at: http://docs.cherrypy.org/en/latest/config.html#id14
BTW: I am seeing a similar issue with cherrypy (13.0.0) and cryptography (2.1.4)
I have a rather simple, naive Python/WSGI/Pyramid web-server.
It's run using wsgiref.simple_server.make_server(), on a server built using pyramid.config.Configurator().make_wsgi_app(). This server works fine.
However, the application it's serving has a lot of javascript image mouseover popups. If you run the mouse across the page, it can generate 20+ image requests. This is fine as well (It's an internal thing, not a lot of users).
However, doing so causes the server to emit something like half a dozen error tracebacks:
10.1.1.4 - - [25/Apr/2014 01:56:42] "GET /*SNIP* 500 59
----------------------------------------
Exception happened during processing of request from ('10.1.1.4', 18338)
Traceback (most recent call last):
File "/usr/lib/python3.4/wsgiref/handlers.py", line 138, in run
self.finish_response()
File "/usr/lib/python3.4/wsgiref/handlers.py", line 180, in finish_response
self.write(data)
File "/usr/lib/python3.4/wsgiref/handlers.py", line 274, in write
self.send_headers()
File "/usr/lib/python3.4/wsgiref/handlers.py", line 333, in send_headers
self._write(bytes(self.headers))
File "/usr/lib/python3.4/wsgiref/handlers.py", line 453, in _write
self.stdout.write(data)
File "/usr/lib/python3.4/socket.py", line 391, in write
return self._sock.send(b)
BrokenPipeError: [Errno 32] Broken pipe
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.4/wsgiref/handlers.py", line 141, in run
self.handle_error()
File "/usr/lib/python3.4/wsgiref/handlers.py", line 368, in handle_error
self.finish_response()
File "/usr/lib/python3.4/wsgiref/handlers.py", line 180, in finish_response
self.write(data)
File "/usr/lib/python3.4/wsgiref/handlers.py", line 274, in write
self.send_headers()
File "/usr/lib/python3.4/wsgiref/handlers.py", line 331, in send_headers
if not self.origin_server or self.client_is_modern():
File "/usr/lib/python3.4/wsgiref/handlers.py", line 344, in client_is_modern
return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.4/socketserver.py", line 306, in _handle_request_noblock
self.process_request(request, client_address)
File "/usr/lib/python3.4/socketserver.py", line 332, in process_request
self.finish_request(request, client_address)
File "/usr/lib/python3.4/socketserver.py", line 345, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/lib/python3.4/socketserver.py", line 666, in __init__
self.handle()
File "/usr/lib/python3.4/wsgiref/simple_server.py", line 126, in handle
handler.run(self.server.get_app())
File "/usr/lib/python3.4/wsgiref/handlers.py", line 144, in run
self.close()
File "/usr/lib/python3.4/wsgiref/simple_server.py", line 35, in close
self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
I understand why I'm getting broken pipe errors (the request for the image is canceled before the image has fully transfered, because the mouseover popup has closed), and it seems harmless.
However, I have no idea how to silence this traceback. There are thousands of them in my logs, and it makes debugging actual errors a nightmare. I don't care that I'm getting broken pipe errors, how can I catch them and swallow them silently?
It seems like wsgiref.simple_server.make_server() installs an internal handler that catches BrokenPipeError: [Errno 32] Broken pipe, prints the traceback, and then swallows the error. I've tried wrapping the run_server() call in a try-except clause, and it doesn't have any effect.
I wound up just switching to using the CherryPy WSGI Server. It doesn't suffer from the broken pipe log issues, and is probably far more robust as well.
It also uses a threadpool, so it's more performant as well (multiple requests aren't blocking!).
I didn't find a straightforward way for achieving this, however, you can always do some monkey patching:
from wsgiref.handlers import BaseHandler
import sys
def ignore_broken_pipes(self):
if sys.exc_info()[0] != BrokenPipeError: BaseHandler.__handle_error_original_(self)
BaseHandler.__handle_error_original_ = BaseHandler.handle_error
BaseHandler.handle_error = ignore_broken_pipes
You will not see these annoyances after running this code somewhere in the beginning anymore.
For me, it looks like a bug somewhere in wsgiref implementation of BaseHandler:
def handle_error(self):
"""Log current error, and send error output to client if possible"""
self.log_exception(sys.exc_info())
if not self.headers_sent:
self.result = self.error_output(self.environ, self.start_response)
self.finish_response()
# XXX else: attempt advanced recovery techniques for HTML or text?
if BrokenPipeError is handled by this method, finish_response crashes. Why do we ever want to finish response if pipe is broken? Where the data is sent to?