Need error handling

[wollala]

If we call the "client.APIKey.APIKey_info()" function with incorrect API key, The server doesn't put 'Remaining-Req' in the header. This results in the following error

 File "C:\Users\junpa\Workspace\PycharmProjects\wSplit\ub\service\uCaller.py", line 42, in api_key_test
    resp = client.APIKey.APIKey_info()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\junpa\Workspace\PycharmProjects\wSplit\venv\Lib\site-packages\upbit\models.py", line 78, in APIKey_info
    return HTTPFutureExtractor.future_extraction(future)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\junpa\Workspace\PycharmProjects\wSplit\venv\Lib\site-packages\upbit\utils.py", line 28, in future_extraction
    remaining = HTTPFutureExtractor.remaining_request(resp.headers)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\junpa\Workspace\PycharmProjects\wSplit\venv\Lib\site-packages\upbit\utils.py", line 15, in remaining_request
    remaining = headers['Remaining-Req']
                ~~~~~~~^^^^^^^^^^^^^^^^^
  File "C:\Users\junpa\Workspace\PycharmProjects\wSplit\venv\Lib\site-packages\requests\structures.py", line 52, in __getitem__
    return self._store[key.lower()][1]
           ~~~~~~~~~~~^^^^^^^^^^^^^
KeyError: 'remaining-req'

So, need the error handling in remaining_request() function of "utils.py".

[uJhin]

In my case, there was no error. Would you like to check the package version?

[uJhin]

Well, Considering that there are no more comments and answers on the issue, I think it's okay to close it now, so I'll close it.