Support for exceptions from Threadwebsocketmanager at Python-Binance
When using « Threadwebsocketmanager » with « Python-Binance », exceptions of service can be difficult due to its asynchronous nature and lack of direct access to error messages. However, there are several ways to cope effectively with exceptions.
Why is it difficult to catch exceptions?
« Threadwebsocketmanager » is designed for internal error handling, which means that you do not have direct access to an error message. When an exception occurs, Binance will spread it to the pile of connections, and you will not receive any information about what went wrong.
Solution 1: Wrap the block of sample
One simple approach is to wrap the code in the « Try » block-« demonstration », as:
`Python
thread
With binance import tremedwebsocketmanager
Create Threadwebsocketmanager
Manager = Threadedwebsocketmanager ()
Def handle_exceptions ():
to try:
Code that can raise the exception, right
pass
except for the exception as E:
print (f "error: {e}")
Start a manager in a separate thread
thread = thread.thread (target = handle_exceptments)
thread.start ()
This will catch all exceptions raised by « Threadwebsocketmanager » and print an error message. However, it should be remembered that this approach may not provide much information about what has gone wrong.
Solution 2: Use non -standard exception handling
Another approach is to create a non -standard exception service function that catches specific exceptions and prints the relevant information:
`Python
Import registration
Create a recorder
logger = logging.getlogger (__ name__)
Def handle_exceptions ():
to try:
Code that can raise the exception, right
pass
except for threadwebsocketmanager.connectionexception as E:
logger.error (f "connection exception: {e}")
except for the exception as E:
logger.error (f "other exception: {e}")
Start a manager in a separate thread
thread = thread.thread (target = handle_exceptments)
thread.start ()
This will attract both « threadwebsocketmanager.connectionexception », as well as any other exceptions raised by « Threadwebsocketmanager », and will print appropriate information about what went wrong.
solution 3: Use the registration service
You can also use a custom registration service module to collect error messages from « Threadwebsocketmanager ». Here is an example:
`Python
thread
Import registration
Create a recorder
logger = logging.getlogger (__ name__)
class ThreadwebsocketmanAgerLogger (logging.handler):
Def emit (self, record):
to try:
Code that can raise the exception, right
pass
except for the exception as E:
Super (). Emit (record)
Create and run logger
Logger = threadedwebsocketmanagerlogger ()
thread = thread.thread (target = lambda: logger.handle ())
thread.start ()
The rest of your code ...
This collects error messages from « Threadwebsocketmanager » in the diary file.
Application
Although there is no direct way of accessing information about the exceptions from « Threadwebsocketmanager », you can apply different approaches to effectively support exceptions. The wrapping code in trial blocks or creating non -standard exceptions are simple solutions, while using the registration service ensures greater flexibility and control. Choose an approach that best suits your needs.
