Call webservice method that contains hyphen

Question

I am trying to call SAP web service using zeep module. We have a web service method called “-CTSH-HC_RFC_XCHG_RATE_UPLOAD” and when try to call that method, getting the error ” Service has no operation '_' “ . Since method name has hyphen, python is not considering the strings after hyphen.

message = client.service_-CTSH_-HC_RFC_XCHG_RATE_UPLOAD()

Note: We cannot change the SAP web service method name as SAP team is following the certain naming convention for method name.

Answer 1

That's not valid python syntax. Python is parsing the code as:

client.service_ - CTSH_-HC_RFC_XCHG_RATE_UPLOAD()

I.e. subtraction of client.service_ and that function call.

You can try to use getattr instead:

method = getattr(client, "service_-CTSH_-HC_RFC_XCHG_RATE_UPLOAD")
method()   # call the method

Assuming that zeep does not "normalize" the invalid method name in some other way.

---

Working example:

>>> class A:
...     pass
... 
>>> setattr(A, "service_-CTSH_-HC_RFC_XCHG_RATE_UPLOAD", lambda self: print('called'))
>>> 
>>> a = A()
>>> getattr(a, "service_-CTSH_-HC_RFC_XCHG_RATE_UPLOAD")()
called
>>> method = getattr(a, "service_-CTSH_-HC_RFC_XCHG_RATE_UPLOAD")
>>> method
<bound method <lambda> of <__main__.A object at 0x7f4651c5e518>>
>>> method()
called

Answer 2

Have you tried this?

import client.service

method_called =  __import__("_-CTSH_-HC_RFC_XCHG_RATE_UPLOAD")

Reference