test_connection_close fails on Apple Silicon

[kmaasrud]

I'm building beancount with Nix on a Macbook Air M1, and while running through the tests of httplib2, I get tests/test_other.py::test_connection_close FAILED. All other tests either pass or are skipped. The error I get is:

=================================== FAILURES ===================================
____________________________ test_connection_close _____________________________
tests/test_other.py:163: in test_connection_close
    http.request(uri, "GET")  # conn2 req1
        c          = <httplib2.HTTPConnectionWithTimeout object at 0x107340280>
        g          = [1, 2]
        handler    = <function test_connection_close.<locals>.handler at 0x107209430>
        http       = <httplib2.Http object at 0x107340eb0>
        uri        = 'http://localhost:51450/'
/nix/store/asvvc5cf87lypq4bnsc7bzlyi8lpdk3x-python3.9-httplib2-0.20.3/lib/python3.9/site-packages/httplib2/__init__.py:1721: in request
    (response, content) = self._request(
        authority  = 'localhost:51450'
        body       = None
        cached_value = None
        cachekey   = None
        cc         = {}
        conn       = <httplib2.HTTPConnectionWithTimeout object at 0x107340280>
        conn_key   = 'http:localhost:51450'
        connection_type = None
        defrag_uri = 'http://localhost:51450/'
        headers    = {'accept-encoding': 'gzip, deflate', 'user-agent': 'Python-httplib2/0.20.3 (gzip)'}
        info       = <email.message.Message object at 0x107340940>
        is_timeout = False
        method     = 'GET'
        redirections = 5
        request_uri = '/'
        scheme     = 'http'
        self       = <httplib2.Http object at 0x107340eb0>
        uri        = 'http://localhost:51450/'
/nix/store/asvvc5cf87lypq4bnsc7bzlyi8lpdk3x-python3.9-httplib2-0.20.3/lib/python3.9/site-packages/httplib2/__init__.py:1441: in _request
    (response, content) = self._conn_request(conn, request_uri, method, body, headers)
        absolute_uri = 'http://localhost:51450/'
        auth       = None
        auths      = []
        body       = None
        cachekey   = None
        conn       = <httplib2.HTTPConnectionWithTimeout object at 0x107340280>
        headers    = {'accept-encoding': 'gzip, deflate', 'user-agent': 'Python-httplib2/0.20.3 (gzip)'}
        host       = 'localhost:51450'
        method     = 'GET'
        redirections = 5
        request_uri = '/'
        self       = <httplib2.Http object at 0x107340eb0>
/nix/store/asvvc5cf87lypq4bnsc7bzlyi8lpdk3x-python3.9-httplib2-0.20.3/lib/python3.9/site-packages/httplib2/__init__.py:1393: in _conn_request
    response = conn.getresponse()
        body       = None
        conn       = <httplib2.HTTPConnectionWithTimeout object at 0x107340280>
        headers    = {'accept-encoding': 'gzip, deflate', 'user-agent': 'Python-httplib2/0.20.3 (gzip)'}
        i          = 1
        method     = 'GET'
        request_uri = '/'
        seen_bad_status_line = False
        self       = <httplib2.Http object at 0x107340eb0>
/nix/store/llqjaw6wamkksidg7i0l9kjdaggsawjj-python3-3.9.10/lib/python3.9/http/client.py:1377: in getresponse
    response.begin()
        response   = <http.client.HTTPResponse object at 0x107340fd0>
        self       = <httplib2.HTTPConnectionWithTimeout object at 0x107340280>
/nix/store/llqjaw6wamkksidg7i0l9kjdaggsawjj-python3-3.9.10/lib/python3.9/http/client.py:320: in begin
    version, status, reason = self._read_status()
        self       = <http.client.HTTPResponse object at 0x107340fd0>
/nix/store/llqjaw6wamkksidg7i0l9kjdaggsawjj-python3-3.9.10/lib/python3.9/http/client.py:281: in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
        self       = <http.client.HTTPResponse object at 0x107340fd0>
/nix/store/llqjaw6wamkksidg7i0l9kjdaggsawjj-python3-3.9.10/lib/python3.9/socket.py:704: in readinto
    return self._sock.recv_into(b)
E   ConnectionResetError: [Errno 54] Connection reset by peer
        b          = <memory at 0x107259d00>
        self       = <socket.SocketIO object at 0x107340760>

As you can see, the version hosted on nixpkgs-unstable is 0.20.3, so I don't know if that is relevant.