remove final remnants from 2.6

requests/__init__.py

@@ -79,14 +79,14 @@ def _check_cryptography(cryptography_version):
         return
 
     if cryptography_version < [1, 3, 4]:
-        warning = 'Old version of cryptography ({0}) may cause slowdown.'.format(cryptography_version)
+        warning = 'Old version of cryptography ({}) may cause slowdown.'.format(cryptography_version)
         warnings.warn(warning, RequestsDependencyWarning)
 
 # Check imported dependencies for compatibility.
 try:
     check_compatibility(urllib3.__version__, chardet.__version__)
 except (AssertionError, ValueError):
-    warnings.warn("urllib3 ({0}) or chardet ({1}) doesn't match a supported "
+    warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported "
                   "version!".format(urllib3.__version__, chardet.__version__),
                   RequestsDependencyWarning)
 
@@ -123,12 +123,7 @@ def _check_cryptography(cryptography_version):
 
 # Set default logging handler to avoid "No handler found" warnings.
 import logging
-try:  # Python 2.7+
-    from logging import NullHandler
-except ImportError:
-    class NullHandler(logging.Handler):
-        def emit(self, record):
-            pass
+from logging import NullHandler
 
 logging.getLogger(__name__).addHandler(NullHandler())
 

requests/adapters.py

@@ -225,7 +225,7 @@ def cert_verify(self, conn, url, verify, cert):
 
             if not cert_loc or not os.path.exists(cert_loc):
                 raise IOError("Could not find a suitable TLS CA certificate bundle, "
-                              "invalid path: {0}".format(cert_loc))
+                              "invalid path: {}".format(cert_loc))
 
             conn.cert_reqs = 'CERT_REQUIRED'
 
@@ -247,10 +247,10 @@ def cert_verify(self, conn, url, verify, cert):
                 conn.key_file = None
             if conn.cert_file and not os.path.exists(conn.cert_file):
                 raise IOError("Could not find the TLS certificate file, "
-                              "invalid path: {0}".format(conn.cert_file))
+                              "invalid path: {}".format(conn.cert_file))
             if conn.key_file and not os.path.exists(conn.key_file):
                 raise IOError("Could not find the TLS key file, "
-                              "invalid path: {0}".format(conn.key_file))
+                              "invalid path: {}".format(conn.key_file))
 
     def build_response(self, req, resp):
         """Builds a :class:`Response <requests.Response>` object from a urllib3
@@ -425,7 +425,7 @@ def send(self, request, stream=False, timeout=None, verify=True, cert=None, prox
                 timeout = TimeoutSauce(connect=connect, read=read)
             except ValueError as e:
                 # this may raise a string formatting error.
-                err = ("Invalid timeout {0}. Pass a (connect, read) "
+                err = ("Invalid timeout {}. Pass a (connect, read) "
                        "timeout tuple, or a single float to set "
                        "both timeouts to the same value".format(timeout))
                 raise ValueError(err)
@@ -475,11 +475,10 @@ def send(self, request, stream=False, timeout=None, verify=True, cert=None, prox
 
                     # Receive the response from the server
                     try:
-                        # For Python 2.7+ versions, use buffering of HTTP
-                        # responses
+                        # For Python 2.7, use buffering of HTTP responses
                         r = low_conn.getresponse(buffering=True)
                     except TypeError:
-                        # For compatibility with Python 2.6 versions and back
+                        # For compatibility with Python 3.3+
                         r = low_conn.getresponse()
 
                     resp = HTTPResponse.from_httplib(

requests/auth.py

@@ -38,7 +38,7 @@ def _basic_auth_str(username, password):
     if not isinstance(username, basestring):
         warnings.warn(
             "Non-string usernames will no longer be supported in Requests "
-            "3.0.0. Please convert the object you've passed in ({0!r}) to "
+            "3.0.0. Please convert the object you've passed in ({!r}) to "
             "a string or bytes object in the near future to avoid "
             "problems.".format(username),
             category=DeprecationWarning,
@@ -48,7 +48,7 @@ def _basic_auth_str(username, password):
     if not isinstance(password, basestring):
         warnings.warn(
             "Non-string passwords will no longer be supported in Requests "
-            "3.0.0. Please convert the object you've passed in ({0!r}) to "
+            "3.0.0. Please convert the object you've passed in ({!r}) to "
             "a string or bytes object in the near future to avoid "
             "problems.".format(password),
             category=DeprecationWarning,

requests/compat.py

@@ -43,9 +43,8 @@
     import cookielib
     from Cookie import Morsel
     from StringIO import StringIO
-    from collections import Callable, Mapping, MutableMapping
+    from collections import Callable, Mapping, MutableMapping, OrderedDict
 
-    from urllib3.packages.ordered_dict import OrderedDict
 
     builtin_str = str
     bytes = str

requests/help.py

@@ -89,8 +89,7 @@ def info():
         'version': getattr(idna, '__version__', ''),
     }
 
-    # OPENSSL_VERSION_NUMBER doesn't exist in the Python 2.6 ssl module.
-    system_ssl = getattr(ssl, 'OPENSSL_VERSION_NUMBER', None)
+    system_ssl = ssl.OPENSSL_VERSION_NUMBER
     system_ssl_info = {
         'version': '%x' % system_ssl if system_ssl is not None else ''
     }

requests/utils.py

@@ -173,7 +173,7 @@ def get_netrc_auth(url, raise_errors=False):
 
         for f in NETRC_FILES:
             try:
-                loc = os.path.expanduser('~/{0}'.format(f))
+                loc = os.path.expanduser('~/{}'.format(f))
             except KeyError:
                 # os.path.expanduser can fail when $HOME is undefined and
                 # getpwuid fails. See https://bugs.python.org/issue20164 &
@@ -729,21 +729,16 @@ def should_bypass_proxies(url, no_proxy):
         else:
             host_with_port = parsed.hostname
             if parsed.port:
-                host_with_port += ':{0}'.format(parsed.port)
+                host_with_port += ':{}'.format(parsed.port)
 
             for host in no_proxy:
                 if parsed.hostname.endswith(host) or host_with_port.endswith(host):
                     # The URL does match something in no_proxy, so we don't want
                     # to apply the proxies on this URL.
                     return True
 
-    # If the system proxy settings indicate that this URL should be bypassed,
-    # don't proxy.
-    # The proxy_bypass function is incredibly buggy on OS X in early versions
-    # of Python 2.6, so allow this call to fail. Only catch the specific
-    # exceptions we've seen, though: this call failing in other ways can reveal
-    # legitimate problems.
     with set_environ('no_proxy', no_proxy_arg):
+        # parsed.hostname can be `None` in cases such as a file URI.
         try:
             bypass = proxy_bypass(parsed.hostname)
         except (TypeError, socket.gaierror):

setup.py

@@ -39,12 +39,6 @@ def run_tests(self):
     os.system('twine upload dist/*')
     sys.exit()
 
-# pyOpenSSL version 18.0.0 dropped support for Python 2.6
-if sys.version_info < (2, 7):
-    PYOPENSSL_VERSION = 'pyOpenSSL >= 0.14, < 18.0.0'
-else:
-    PYOPENSSL_VERSION = 'pyOpenSSL >= 0.14'
-
 packages = ['requests']
 
 requires = [
@@ -85,7 +79,7 @@ def run_tests(self):
     package_data={'': ['LICENSE', 'NOTICE'], 'requests': ['*.pem']},
     package_dir={'requests': 'requests'},
     include_package_data=True,
-    python_requires=">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     install_requires=requires,
     license=about['__license__'],
     zip_safe=False,
@@ -108,8 +102,8 @@ def run_tests(self):
     cmdclass={'test': PyTest},
     tests_require=test_requirements,
     extras_require={
-        'security': [PYOPENSSL_VERSION, 'cryptography>=1.3.4', 'idna>=2.0.0'],
+        'security': ['pyOpenSSL >= 0.14', 'cryptography>=1.3.4', 'idna>=2.0.0'],
         'socks': ['PySocks>=1.5.6, !=1.5.7'],
-        'socks:sys_platform == "win32" and (python_version == "2.7" or python_version == "2.6")': ['win_inet_pton'],
+        'socks:sys_platform == "win32" and python_version == "2.7"': ['win_inet_pton'],
     },
 )

tests/test_help.py

@@ -7,15 +7,6 @@
 from requests.help import info
 
 
-@pytest.mark.skipif(sys.version_info[:2] != (2,6), reason="Only run on Python 2.6")
-def test_system_ssl_py26():
-    """OPENSSL_VERSION_NUMBER isn't provided in Python 2.6, verify we don't
-    blow up in this case.
-    """
-    assert info()['system_ssl'] == {'version': ''}
-
-
-@pytest.mark.skipif(sys.version_info < (2,7), reason="Only run on Python 2.7+")
 def test_system_ssl():
     """Verify we're actually setting system_ssl when it should be available."""
     assert info()['system_ssl']['version'] != ''

tests/test_lowlevel.py

@@ -16,7 +16,7 @@ def test_chunked_upload():
     data = iter([b'a', b'b', b'c'])
 
     with server as (host, port):
-        url = 'http://{0}:{1}/'.format(host, port)
+        url = 'http://{}:{}/'.format(host, port)
         r = requests.post(url, data=data, stream=True)
         close_server.set()  # release server block
 
@@ -77,7 +77,7 @@ def digest_response_handler(sock):
     server = Server(digest_response_handler, wait_to_close_event=close_server)
 
     with server as (host, port):
-        url = 'http://{0}:{1}/'.format(host, port)
+        url = 'http://{}:{}/'.format(host, port)
         r = requests.get(url, auth=auth)
         # Verify server succeeded in authenticating.
         assert r.status_code == 200
@@ -127,7 +127,7 @@ def digest_failed_response_handler(sock):
     server = Server(digest_failed_response_handler, wait_to_close_event=close_server)
 
     with server as (host, port):
-        url = 'http://{0}:{1}/'.format(host, port)
+        url = 'http://{}:{}/'.format(host, port)
         r = requests.get(url, auth=auth)
         # Verify server didn't authenticate us.
         assert r.status_code == 401
@@ -164,7 +164,7 @@ def digest_response_handler(sock):
     server = Server(digest_response_handler, wait_to_close_event=close_server)
 
     with server as (host, port):
-        url = 'http://{0}:{1}/'.format(host, port)
+        url = 'http://{}:{}/'.format(host, port)
         r = requests.get(url, auth=auth)
         # Verify server didn't receive auth from us.
         assert r.status_code == 200
@@ -181,17 +181,17 @@ def digest_response_handler(sock):
 _proxy_combos = []
 for prefix, schemes in _schemes_by_var_prefix:
     for scheme in schemes:
-        _proxy_combos.append(("{0}_proxy".format(prefix), scheme))
+        _proxy_combos.append(("{}_proxy".format(prefix), scheme))
 
 _proxy_combos += [(var.upper(), scheme) for var, scheme in _proxy_combos]
 
 
 @pytest.mark.parametrize("var,scheme", _proxy_combos)
 def test_use_proxy_from_environment(httpbin, var, scheme):
-    url = "{0}://httpbin.org".format(scheme)
+    url = "{}://httpbin.org".format(scheme)
     fake_proxy = Server()  # do nothing with the requests; just close the socket
     with fake_proxy as (host, port):
-        proxy_url = "socks5://{0}:{1}".format(host, port)
+        proxy_url = "socks5://{}:{}".format(host, port)
         kwargs = {var: proxy_url}
         with override_environ(**kwargs):
             # fake proxy's lack of response will cause a ConnectionError
@@ -212,7 +212,7 @@ def test_redirect_rfc1808_to_non_ascii_location():
 
     def redirect_resp_handler(sock):
         consume_socket_content(sock, timeout=0.5)
-        location = u'//{0}:{1}/{2}'.format(host, port, path)
+        location = u'//{}:{}/{}'.format(host, port, path)
         sock.send(
             b'HTTP/1.1 301 Moved Permanently\r\n'
             b'Content-Length: 0\r\n'
@@ -226,13 +226,13 @@ def redirect_resp_handler(sock):
     server = Server(redirect_resp_handler, wait_to_close_event=close_server)
 
     with server as (host, port):
-        url = u'http://{0}:{1}'.format(host, port)
+        url = u'http://{}:{}'.format(host, port)
         r = requests.get(url=url, allow_redirects=True)
         assert r.status_code == 200
         assert len(r.history) == 1
         assert r.history[0].status_code == 301
         assert redirect_request[0].startswith(b'GET /' + expected_path + b' HTTP/1.1')
-        assert r.url == u'{0}/{1}'.format(url, expected_path.decode('ascii'))
+        assert r.url == u'{}/{}'.format(url, expected_path.decode('ascii'))
 
         close_server.set()
 
@@ -250,7 +250,7 @@ def response_handler(sock):
     server = Server(response_handler, wait_to_close_event=close_server)
 
     with server as (host, port):
-        url = 'http://{0}:{1}/path/to/thing/#view=edit&token=hunter2'.format(host, port)
+        url = 'http://{}:{}/path/to/thing/#view=edit&token=hunter2'.format(host, port)
         r = requests.get(url)
         raw_request = r.content
 
@@ -293,7 +293,7 @@ def response_handler(sock):
     server = Server(response_handler, wait_to_close_event=close_server)
 
     with server as (host, port):
-        url = 'http://{0}:{1}/path/to/thing/#view=edit&token=hunter2'.format(host, port)
+        url = 'http://{}:{}/path/to/thing/#view=edit&token=hunter2'.format(host, port)
         r = requests.get(url)
         raw_request = r.content
 
@@ -302,8 +302,8 @@ def response_handler(sock):
         assert r.history[0].request.url == url
 
         # Verify we haven't overwritten the location with our previous fragment.
-        assert r.history[1].request.url == 'http://{0}:{1}/get#relevant-section'.format(host, port)
+        assert r.history[1].request.url == 'http://{}:{}/get#relevant-section'.format(host, port)
         # Verify previous fragment is used and not the original.
-        assert r.url == 'http://{0}:{1}/final-url/#relevant-section'.format(host, port)
+        assert r.url == 'http://{}:{}/final-url/#relevant-section'.format(host, port)
 
         close_server.set()

tests/test_requests.py

@@ -158,7 +158,7 @@ def test_mixed_case_scheme_acceptable(self, httpbin, scheme):
         url = scheme + parts.netloc + parts.path
         r = requests.Request('GET', url)
         r = s.send(r.prepare())
-        assert r.status_code == 200, 'failed for scheme {0}'.format(scheme)
+        assert r.status_code == 200, 'failed for scheme {}'.format(scheme)
 
     def test_HTTP_200_OK_GET_ALTERNATIVE(self, httpbin):
         r = requests.Request('GET', httpbin('get'))
@@ -816,17 +816,17 @@ def test_invalid_ca_certificate_path(self, httpbin_secure):
         INVALID_PATH = '/garbage'
         with pytest.raises(IOError) as e:
             requests.get(httpbin_secure(), verify=INVALID_PATH)
-        assert str(e.value) == 'Could not find a suitable TLS CA certificate bundle, invalid path: {0}'.format(INVALID_PATH)
+        assert str(e.value) == 'Could not find a suitable TLS CA certificate bundle, invalid path: {}'.format(INVALID_PATH)
 
     def test_invalid_ssl_certificate_files(self, httpbin_secure):
         INVALID_PATH = '/garbage'
         with pytest.raises(IOError) as e:
             requests.get(httpbin_secure(), cert=INVALID_PATH)
-        assert str(e.value) == 'Could not find the TLS certificate file, invalid path: {0}'.format(INVALID_PATH)
+        assert str(e.value) == 'Could not find the TLS certificate file, invalid path: {}'.format(INVALID_PATH)
 
         with pytest.raises(IOError) as e:
             requests.get(httpbin_secure(), cert=('.', INVALID_PATH))
-        assert str(e.value) == 'Could not find the TLS key file, invalid path: {0}'.format(INVALID_PATH)
+        assert str(e.value) == 'Could not find the TLS key file, invalid path: {}'.format(INVALID_PATH)
 
     def test_http_with_certificate(self, httpbin):
         r = requests.get(httpbin(), cert='.')
@@ -1458,7 +1458,7 @@ def test_params_are_merged_case_sensitive(self, httpbin):
         assert r.json()['args'] == {'foo': 'bar', 'FOO': 'bar'}
 
     def test_long_authinfo_in_url(self):
-        url = 'http://{0}:{1}@{2}:9000/path?query#frag'.format(
+        url = 'http://{}:{}@{}:9000/path?query#frag'.format(
             'E8A3BE87-9E3F-4620-8858-95478E385B5B',
             'EA770032-DA4D-4D84-8CE9-29C6D910BF1E',
             'exactly-------------sixty-----------three------------characters',

tests/test_testserver.py

@@ -50,7 +50,7 @@ def test_text_response(self):
         )
 
         with server as (host, port):
-            r = requests.get('http://{0}:{1}'.format(host, port))
+            r = requests.get('http://{}:{}'.format(host, port))
 
             assert r.status_code == 200
             assert r.text == u'roflol'
@@ -59,7 +59,7 @@ def test_text_response(self):
     def test_basic_response(self):
         """the basic response server returns an empty http response"""
         with Server.basic_response_server() as (host, port):
-            r = requests.get('http://{0}:{1}'.format(host, port))
+            r = requests.get('http://{}:{}'.format(host, port))
             assert r.status_code == 200
             assert r.text == u''
             assert r.headers['Content-Length'] == '0'
@@ -83,7 +83,7 @@ def test_multiple_requests(self):
         server = Server.basic_response_server(requests_to_handle=requests_to_handle)
 
         with server as (host, port):
-            server_url = 'http://{0}:{1}'.format(host, port)
+            server_url = 'http://{}:{}'.format(host, port)
             for _ in range(requests_to_handle):
                 r = requests.get(server_url)
                 assert r.status_code == 200

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,py34,py35,py36
+envlist = py27,py34,py35,py36
 
 [testenv]