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zeep.exceptions.XMLSyntaxError: Invalid XML content received (Opening and ending tag mismatch: p line 46 and br, line 46, column 250)

"There is no default service defined. This is usually due to "
ValueError: There is no default service defined. This is usually due to missing wsdl:service definitions in the WSDL

其实报这个错误就是对方的wsdl写的不规范导致的问题，就算你把

settings = Settings(strict=False)

client = Client(url, settings=settings)

不严谨打开也白费的，需要更改的是对方的WSDL接口。