When trying to use remotezip with PyPi, I discovered that while their server supports range requests, it does not support using a negative offset to get {content-length - bytes}-{content-length}.

When raise_for_status is called, an HTTP 501 error is returned (it could theoretically also be a 405) and remotezip aborts.

Reproducer:

from remotezip import RemoteZip

url = "https://files.pythonhosted.org/packages/71/6d/95777fd66507106d2f8f81d005255c237187951644f85a5bd0baeec8a88f/paramiko-2.12.0-py2.py3-none-any.whl"
  with RemoteZip(url) as wzip:
      wzip.extract('METADATA')

I was going to do a pull request, but not being super good with Python myself, I found it was not obviously fixible (to me at least) with a simple try/catch since it's going through constructors, etc.

Checking for a 501 or 405 error before raise_for_status and falling back to getting self.__file_size by a separate http request for content-length should fix this.

Something like:

def _request(self, kwargs): 
     if self._session: 
         res = self._session.get(self._url, stream=True, **kwargs) 
     else: 
         res = requests.get(self._url, stream=True, **kwargs) 
if res._status_code == 501 or 405:
    (do whatever needs to be done so that
    self._file_size = requests.get(self._url, stream=True).headers['Content-Length']
    )
res.raise_for_status()

Edit: I also submitted a bug/feature request to PyPI/warehoise about this on their server; I don't anticipate they will implement it quickly, but if they do, the given reproducer may not work.