Make exceptions less noisy

In the meantime all the details of the http- and exchange- errors are included in the exception string:

    def raise_error(self, exception_type, url=None, method=None, error=None, details=None):
        if error:
            error = str(error)
        output = ' '.join([self.id] + [var for var in (url, method, error, details) if var is not None])
        raise exception_type(output)

– the details here includes the http-response came from exchange…

When we handle such exception in the app, this often results in long sheets of html data, even if the logging value is less than DEBUG and the user did not requested this high level of detalization.

The suggestion is to include the value of the details param into the exception string only when the DEBUG logging level is set for ccxt.

[frosty00]

#5467

[frosty00]

@kroitor #5494