diff --git a/wakatime/packages/requests/adapters.py b/wakatime/packages/requests/adapters.py
index 7e65c78..98b7317 100644
--- a/wakatime/packages/requests/adapters.py
+++ b/wakatime/packages/requests/adapters.py
@@ -118,7 +118,7 @@ class HTTPAdapter(BaseAdapter):
         :param verify: Whether we should actually verify the certificate.
         :param cert: The SSL certificate to verify.
         """
-        if url.lower().startswith('https') and verify:
+        if url.startswith('https') and verify:
 
             cert_loc = None
 
@@ -190,13 +190,13 @@ class HTTPAdapter(BaseAdapter):
         :param proxies: (optional) A Requests-style dictionary of proxies used on this request.
         """
         proxies = proxies or {}
-        proxy = proxies.get(urlparse(url.lower()).scheme)
+        proxy = proxies.get(urlparse(url).scheme)
 
         if proxy:
-            proxy = prepend_scheme_if_needed(proxy, urlparse(url.lower()).scheme)
+            proxy = prepend_scheme_if_needed(proxy, urlparse(url).scheme)
             conn = ProxyManager(self.poolmanager.connection_from_url(proxy))
         else:
-            conn = self.poolmanager.connection_from_url(url.lower())
+            conn = self.poolmanager.connection_from_url(url)
 
         return conn
 
@@ -214,7 +214,7 @@ class HTTPAdapter(BaseAdapter):
         If the message is being sent through a proxy, the full URL has to be
         used. Otherwise, we should only use the path portion of the URL.
 
-        This should not be called from user code, and is only exposed for use
+        This shoudl not be called from user code, and is only exposed for use
         when subclassing the
         :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
 
diff --git a/wakatime/packages/requests/compat.py b/wakatime/packages/requests/compat.py
index 0d61a57..bcf94b0 100644
--- a/wakatime/packages/requests/compat.py
+++ b/wakatime/packages/requests/compat.py
@@ -83,14 +83,13 @@ except ImportError:
 # ---------
 
 if is_py2:
-    from urllib import quote, unquote, quote_plus, unquote_plus, urlencode, getproxies, proxy_bypass
+    from urllib import quote, unquote, quote_plus, unquote_plus, urlencode
     from urlparse import urlparse, urlunparse, urljoin, urlsplit, urldefrag
     from urllib2 import parse_http_list
     import cookielib
     from Cookie import Morsel
     from StringIO import StringIO
     from .packages.urllib3.packages.ordered_dict import OrderedDict
-    from httplib import IncompleteRead
 
     builtin_str = str
     bytes = str
@@ -101,12 +100,11 @@ if is_py2:
 
 elif is_py3:
     from urllib.parse import urlparse, urlunparse, urljoin, urlsplit, urlencode, quote, unquote, quote_plus, unquote_plus, urldefrag
-    from urllib.request import parse_http_list, getproxies, proxy_bypass
+    from urllib.request import parse_http_list
     from http import cookiejar as cookielib
     from http.cookies import Morsel
     from io import StringIO
     from collections import OrderedDict
-    from http.client import IncompleteRead
 
     builtin_str = str
     str = str
diff --git a/wakatime/packages/requests/cookies.py b/wakatime/packages/requests/cookies.py
index 3bfedcc..d759d0a 100644
--- a/wakatime/packages/requests/cookies.py
+++ b/wakatime/packages/requests/cookies.py
@@ -6,7 +6,6 @@ Compatibility code to be able to use `cookielib.CookieJar` with requests.
 requests.utils imports from here, so be careful with imports.
 """
 
-import time
 import collections
 from .compat import cookielib, urlparse, Morsel
 
@@ -74,10 +73,6 @@ class MockRequest(object):
     def origin_req_host(self):
         return self.get_origin_req_host()
 
-    @property
-    def host(self):
-        return self.get_host()
-
 
 class MockResponse(object):
     """Wraps a `httplib.HTTPMessage` to mimic a `urllib.addinfourl`.
@@ -263,11 +258,6 @@ class RequestsCookieJar(cookielib.CookieJar, collections.MutableMapping):
         """Deletes a cookie given a name. Wraps cookielib.CookieJar's remove_cookie_by_name()."""
         remove_cookie_by_name(self, name)
 
-    def set_cookie(self, cookie, *args, **kwargs):
-        if cookie.value.startswith('"') and cookie.value.endswith('"'):
-            cookie.value = cookie.value.replace('\\"', '')
-        return super(RequestsCookieJar, self).set_cookie(cookie, *args, **kwargs)
-
     def update(self, other):
         """Updates this jar with cookies from another CookieJar or dict-like"""
         if isinstance(other, cookielib.CookieJar):
@@ -364,23 +354,19 @@ def create_cookie(name, value, **kwargs):
 
 def morsel_to_cookie(morsel):
     """Convert a Morsel object into a Cookie containing the one k/v pair."""
-    expires = None
-    if morsel["max-age"]:
-        expires = time.time() + morsel["max-age"]
-    elif morsel['expires']:
-        expires = morsel['expires']
-        if type(expires) == type(""):
-            time_template = "%a, %d-%b-%Y %H:%M:%S GMT"
-            expires = time.mktime(time.strptime(expires, time_template))
     c = create_cookie(
         name=morsel.key,
         value=morsel.value,
         version=morsel['version'] or 0,
         port=None,
+        port_specified=False,
         domain=morsel['domain'],
+        domain_specified=bool(morsel['domain']),
+        domain_initial_dot=morsel['domain'].startswith('.'),
         path=morsel['path'],
+        path_specified=bool(morsel['path']),
         secure=bool(morsel['secure']),
-        expires=expires,
+        expires=morsel['max-age'] or morsel['expires'],
         discard=False,
         comment=morsel['comment'],
         comment_url=bool(morsel['comment']),
diff --git a/wakatime/packages/requests/exceptions.py b/wakatime/packages/requests/exceptions.py
index 63f2c9c..c0588f6 100644
--- a/wakatime/packages/requests/exceptions.py
+++ b/wakatime/packages/requests/exceptions.py
@@ -53,7 +53,3 @@ class InvalidSchema(RequestException, ValueError):
 
 class InvalidURL(RequestException, ValueError):
     """ The URL provided was somehow invalid. """
-
-
-class ChunkedEncodingError(RequestException):
-    """The server declared chunked encoding but sent an invalid chunk."""
diff --git a/wakatime/packages/requests/models.py b/wakatime/packages/requests/models.py
index 87bb824..6cf2aaa 100644
--- a/wakatime/packages/requests/models.py
+++ b/wakatime/packages/requests/models.py
@@ -19,16 +19,14 @@ from .auth import HTTPBasicAuth
 from .cookies import cookiejar_from_dict, get_cookie_header
 from .packages.urllib3.filepost import encode_multipart_formdata
 from .packages.urllib3.util import parse_url
-from .exceptions import (
-    HTTPError, RequestException, MissingSchema, InvalidURL,
-    ChunkedEncodingError)
+from .exceptions import HTTPError, RequestException, MissingSchema, InvalidURL
 from .utils import (
     guess_filename, get_auth_from_url, requote_uri,
     stream_decode_response_unicode, to_key_val_list, parse_header_links,
     iter_slices, guess_json_utf, super_len)
 from .compat import (
-    cookielib, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
-    is_py2, chardet, json, builtin_str, basestring, IncompleteRead)
+    cookielib, urlparse, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
+    is_py2, chardet, json, builtin_str, basestring)
 
 CONTENT_CHUNK_SIZE = 10 * 1024
 ITER_CHUNK_SIZE = 512
@@ -211,6 +209,7 @@ class Request(RequestHooksMixin):
         self.params = params
         self.auth = auth
         self.cookies = cookies
+        self.hooks = hooks
 
     def __repr__(self):
         return '<Request [%s]>' % (self.method)
@@ -218,17 +217,19 @@ class Request(RequestHooksMixin):
     def prepare(self):
         """Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it."""
         p = PreparedRequest()
-        p.prepare(
-            method=self.method,
-            url=self.url,
-            headers=self.headers,
-            files=self.files,
-            data=self.data,
-            params=self.params,
-            auth=self.auth,
-            cookies=self.cookies,
-            hooks=self.hooks,
-        )
+
+        p.prepare_method(self.method)
+        p.prepare_url(self.url, self.params)
+        p.prepare_headers(self.headers)
+        p.prepare_cookies(self.cookies)
+        p.prepare_body(self.data, self.files)
+        p.prepare_auth(self.auth, self.url)
+        # Note that prepare_auth must be last to enable authentication schemes
+        # such as OAuth to work on a fully prepared request.
+
+        # This MUST go after prepare_auth. Authenticators could add a hook
+        p.prepare_hooks(self.hooks)
+
         return p
 
 
@@ -263,34 +264,9 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
         #: dictionary of callback hooks, for internal usage.
         self.hooks = default_hooks()
 
-    def prepare(self, method=None, url=None, headers=None, files=None,
-                data=None, params=None, auth=None, cookies=None, hooks=None):
-        """Prepares the the entire request with the given parameters."""
-
-        self.prepare_method(method)
-        self.prepare_url(url, params)
-        self.prepare_headers(headers)
-        self.prepare_cookies(cookies)
-        self.prepare_body(data, files)
-        self.prepare_auth(auth, url)
-        # Note that prepare_auth must be last to enable authentication schemes
-        # such as OAuth to work on a fully prepared request.
-
-        # This MUST go after prepare_auth. Authenticators could add a hook
-        self.prepare_hooks(hooks)
-
     def __repr__(self):
         return '<PreparedRequest [%s]>' % (self.method)
 
-    def copy(self):
-        p = PreparedRequest()
-        p.method = self.method
-        p.url = self.url
-        p.headers = self.headers
-        p.body = self.body
-        p.hooks = self.hooks
-        return p
-
     def prepare_method(self, method):
         """Prepares the given HTTP method."""
         self.method = method
@@ -376,6 +352,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
         body = None
         content_type = None
         length = None
+        is_stream = False
 
         is_stream = all([
             hasattr(data, '__iter__'),
@@ -387,7 +364,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
         try:
             length = super_len(data)
         except (TypeError, AttributeError):
-            length = None
+            length = False
 
         if is_stream:
             body = data
@@ -395,10 +372,13 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
             if files:
                 raise NotImplementedError('Streamed bodies and files are mutually exclusive.')
 
-            if length is not None:
+            if length:
                 self.headers['Content-Length'] = str(length)
             else:
                 self.headers['Transfer-Encoding'] = 'chunked'
+        # Check if file, fo, generator, iterator.
+        # If not, run through normal process.
+
         else:
             # Multi-part file uploads.
             if files:
@@ -557,22 +537,11 @@ class Response(object):
             return iter_slices(self._content, chunk_size)
 
         def generate():
-            try:
-                # Special case for urllib3.
-                try:
-                    for chunk in self.raw.stream(chunk_size,
-                                                 decode_content=True):
-                        yield chunk
-                except IncompleteRead as e:
-                    raise ChunkedEncodingError(e)
-            except AttributeError:
-                # Standard file-like object.
-                while 1:
-                    chunk = self.raw.read(chunk_size)
-                    if not chunk:
-                        break
-                    yield chunk
-
+            while 1:
+                chunk = self.raw.read(chunk_size, decode_content=True)
+                if not chunk:
+                    break
+                yield chunk
             self._content_consumed = True
 
         gen = generate()
@@ -714,9 +683,4 @@ class Response(object):
             raise HTTPError(http_error_msg, response=self)
 
     def close(self):
-        """Closes the underlying file descriptor and releases the connection
-        back to the pool.
-
-        *Note: Should not normally need to be called explicitly.*
-        """
         return self.raw.release_conn()
diff --git a/wakatime/packages/requests/packages/urllib3/_collections.py b/wakatime/packages/requests/packages/urllib3/_collections.py
index 282b8d5..b35a736 100644
--- a/wakatime/packages/requests/packages/urllib3/_collections.py
+++ b/wakatime/packages/requests/packages/urllib3/_collections.py
@@ -5,7 +5,7 @@
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
 
 from collections import MutableMapping
-from threading import RLock
+from threading import Lock
 
 try: # Python 2.7+
     from collections import OrderedDict
@@ -40,18 +40,18 @@ class RecentlyUsedContainer(MutableMapping):
         self.dispose_func = dispose_func
 
         self._container = self.ContainerCls()
-        self.lock = RLock()
+        self._lock = Lock()
 
     def __getitem__(self, key):
         # Re-insert the item, moving it to the end of the eviction line.
-        with self.lock:
+        with self._lock:
             item = self._container.pop(key)
             self._container[key] = item
             return item
 
     def __setitem__(self, key, value):
         evicted_value = _Null
-        with self.lock:
+        with self._lock:
             # Possibly evict the existing value of 'key'
             evicted_value = self._container.get(key, _Null)
             self._container[key] = value
@@ -65,21 +65,21 @@ class RecentlyUsedContainer(MutableMapping):
             self.dispose_func(evicted_value)
 
     def __delitem__(self, key):
-        with self.lock:
+        with self._lock:
             value = self._container.pop(key)
 
         if self.dispose_func:
             self.dispose_func(value)
 
     def __len__(self):
-        with self.lock:
+        with self._lock:
             return len(self._container)
 
     def __iter__(self):
         raise NotImplementedError('Iteration over this class is unlikely to be threadsafe.')
 
     def clear(self):
-        with self.lock:
+        with self._lock:
             # Copy pointers to all values, then wipe the mapping
             # under Python 2, this copies the list of values twice :-|
             values = list(self._container.values())
@@ -90,5 +90,5 @@ class RecentlyUsedContainer(MutableMapping):
                 self.dispose_func(value)
 
     def keys(self):
-        with self.lock:
+        with self._lock:
             return self._container.keys()
diff --git a/wakatime/packages/requests/packages/urllib3/connectionpool.py b/wakatime/packages/requests/packages/urllib3/connectionpool.py
index 030eae8..f3e9260 100644
--- a/wakatime/packages/requests/packages/urllib3/connectionpool.py
+++ b/wakatime/packages/requests/packages/urllib3/connectionpool.py
@@ -26,10 +26,7 @@ except ImportError:
 
 try: # Compiled with SSL?
     HTTPSConnection = object
-
-    class BaseSSLError(BaseException):
-        pass
-
+    BaseSSLError = None
     ssl = None
 
     try: # Python 3
@@ -113,7 +110,7 @@ class VerifiedHTTPSConnection(HTTPSConnection):
             if self.assert_fingerprint:
                 assert_fingerprint(self.sock.getpeercert(binary_form=True),
                                    self.assert_fingerprint)
-            elif self.assert_hostname is not False:
+            else:
                 match_hostname(self.sock.getpeercert(),
                                self.assert_hostname or self.host)
 
@@ -155,8 +152,8 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
         :class:`httplib.HTTPConnection`.
 
     :param timeout:
-        Socket timeout in seconds for each individual connection, can be
-        a float. None disables timeout.
+        Socket timeout for each individual connection, can be a float. None
+        disables timeout.
 
     :param maxsize:
         Number of connections to save that can be reused. More than 1 is useful
@@ -379,7 +376,6 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
 
         :param timeout:
             If specified, overrides the default timeout for this one request.
-            It may be a float (in seconds).
 
         :param pool_timeout:
             If set and the pool is set to block=True, then this method will
@@ -414,6 +410,10 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
 
         # Check host
         if assert_same_host and not self.is_same_host(url):
+            host = "%s://%s" % (self.scheme, self.host)
+            if self.port:
+                host = "%s:%d" % (host, self.port)
+
             raise HostChangedError(self, url, retries - 1)
 
         conn = None
@@ -513,7 +513,6 @@ class HTTPSConnectionPool(HTTPConnectionPool):
 
     :class:`.VerifiedHTTPSConnection` uses one of ``assert_fingerprint``,
     ``assert_hostname`` and ``host`` in this order to verify connections.
-    If ``assert_hostname`` is False, no verification is done.
 
     The ``key_file``, ``cert_file``, ``cert_reqs``, ``ca_certs`` and
     ``ssl_version`` are only used if :mod:`ssl` is available and are fed into
diff --git a/wakatime/packages/requests/packages/urllib3/contrib/ntlmpool.py b/wakatime/packages/requests/packages/urllib3/contrib/ntlmpool.py
index b8cd933..277ee0b 100644
--- a/wakatime/packages/requests/packages/urllib3/contrib/ntlmpool.py
+++ b/wakatime/packages/requests/packages/urllib3/contrib/ntlmpool.py
@@ -33,7 +33,7 @@ class NTLMConnectionPool(HTTPSConnectionPool):
     def __init__(self, user, pw, authurl, *args, **kwargs):
         """
         authurl is a random URL on the server that is protected by NTLM.
-        user is the Windows user, probably in the DOMAIN\\username format.
+        user is the Windows user, probably in the DOMAIN\username format.
         pw is the password for the user.
         """
         super(NTLMConnectionPool, self).__init__(*args, **kwargs)
diff --git a/wakatime/packages/requests/packages/urllib3/contrib/pyopenssl.py b/wakatime/packages/requests/packages/urllib3/contrib/pyopenssl.py
index 6d0255f..5c4c6d8 100644
--- a/wakatime/packages/requests/packages/urllib3/contrib/pyopenssl.py
+++ b/wakatime/packages/requests/packages/urllib3/contrib/pyopenssl.py
@@ -106,9 +106,6 @@ class WrappedSocket(object):
         self.connection = connection
         self.socket = socket
 
-    def fileno(self):
-        return self.socket.fileno()
-
     def makefile(self, mode, bufsize=-1):
         return _fileobject(self.connection, mode, bufsize)
 
@@ -118,9 +115,6 @@ class WrappedSocket(object):
     def sendall(self, data):
         return self.connection.sendall(data)
 
-    def close(self):
-        return self.connection.shutdown()
-
     def getpeercert(self, binary_form=False):
         x509 = self.connection.get_peer_certificate()
         if not x509:
diff --git a/wakatime/packages/requests/packages/urllib3/filepost.py b/wakatime/packages/requests/packages/urllib3/filepost.py
index 526a740..470309a 100644
--- a/wakatime/packages/requests/packages/urllib3/filepost.py
+++ b/wakatime/packages/requests/packages/urllib3/filepost.py
@@ -1,5 +1,5 @@
 # urllib3/filepost.py
-# Copyright 2008-2013 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
+# Copyright 2008-2012 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
 #
 # This module is part of urllib3 and is released under
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
diff --git a/wakatime/packages/requests/packages/urllib3/poolmanager.py b/wakatime/packages/requests/packages/urllib3/poolmanager.py
index 66ceb1b..ce0c248 100644
--- a/wakatime/packages/requests/packages/urllib3/poolmanager.py
+++ b/wakatime/packages/requests/packages/urllib3/poolmanager.py
@@ -6,11 +6,6 @@
 
 import logging
 
-try:  # Python 3
-    from urllib.parse import urljoin
-except ImportError:
-    from urlparse import urljoin
-
 from ._collections import RecentlyUsedContainer
 from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool
 from .connectionpool import connection_from_url, port_by_scheme
@@ -104,16 +99,15 @@ class PoolManager(RequestMethods):
 
         pool_key = (scheme, host, port)
 
-        with self.pools.lock:
-          # If the scheme, host, or port doesn't match existing open connections,
-          # open a new ConnectionPool.
-          pool = self.pools.get(pool_key)
-          if pool:
-              return pool
+        # If the scheme, host, or port doesn't match existing open connections,
+        # open a new ConnectionPool.
+        pool = self.pools.get(pool_key)
+        if pool:
+            return pool
 
-          # Make a fresh ConnectionPool of the desired type
-          pool = self._new_pool(scheme, host, port)
-          self.pools[pool_key] = pool
+        # Make a fresh ConnectionPool of the desired type
+        pool = self._new_pool(scheme, host, port)
+        self.pools[pool_key] = pool
         return pool
 
     def connection_from_url(self, url):
@@ -151,10 +145,6 @@ class PoolManager(RequestMethods):
         if not redirect_location:
             return response
 
-        # Support relative URLs for redirecting.
-        redirect_location = urljoin(url, redirect_location)
-
-        # RFC 2616, Section 10.3.4
         if response.status == 303:
             method = 'GET'
 
@@ -181,9 +171,9 @@ class ProxyManager(RequestMethods):
         """
         headers_ = {'Accept': '*/*'}
 
-        netloc = parse_url(url).netloc
-        if netloc:
-            headers_['Host'] = netloc
+        host = parse_url(url).host
+        if host:
+            headers_['Host'] = host
 
         if headers:
             headers_.update(headers)
diff --git a/wakatime/packages/requests/packages/urllib3/request.py b/wakatime/packages/requests/packages/urllib3/request.py
index 66a9a0e..bf0256e 100644
--- a/wakatime/packages/requests/packages/urllib3/request.py
+++ b/wakatime/packages/requests/packages/urllib3/request.py
@@ -30,7 +30,7 @@ class RequestMethods(object):
     in the URL (such as GET, HEAD, DELETE).
 
     :meth:`.request_encode_body` is for sending requests whose fields are
-    encoded in the *body* of the request using multipart or www-form-urlencoded
+    encoded in the *body* of the request using multipart or www-orm-urlencoded
     (such as for POST, PUT, PATCH).
 
     :meth:`.request` is for making any kind of request, it will look up the
diff --git a/wakatime/packages/requests/packages/urllib3/response.py b/wakatime/packages/requests/packages/urllib3/response.py
index 007a5ab..2fa4078 100644
--- a/wakatime/packages/requests/packages/urllib3/response.py
+++ b/wakatime/packages/requests/packages/urllib3/response.py
@@ -1,5 +1,5 @@
 # urllib3/response.py
-# Copyright 2008-2013 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
+# Copyright 2008-2012 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
 #
 # This module is part of urllib3 and is released under
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
@@ -7,11 +7,9 @@
 
 import logging
 import zlib
-import io
 
 from .exceptions import DecodeError
 from .packages.six import string_types as basestring, binary_type
-from .util import is_fp_closed
 
 
 log = logging.getLogger(__name__)
@@ -50,7 +48,7 @@ def _get_decoder(mode):
     return DeflateDecoder()
 
 
-class HTTPResponse(io.IOBase):
+class HTTPResponse(object):
     """
     HTTP Response container.
 
@@ -185,11 +183,9 @@ class HTTPResponse(io.IOBase):
             try:
                 if decode_content and self._decoder:
                     data = self._decoder.decompress(data)
-            except (IOError, zlib.error) as e:
-                raise DecodeError(
-                    "Received response with content-encoding: %s, but "
-                    "failed to decode it." % content_encoding,
-                    e)
+            except (IOError, zlib.error):
+                raise DecodeError("Received response with content-encoding: %s, but "
+                                  "failed to decode it." % content_encoding)
 
             if flush_decoder and self._decoder:
                 buf = self._decoder.decompress(binary_type())
@@ -204,29 +200,6 @@ class HTTPResponse(io.IOBase):
             if self._original_response and self._original_response.isclosed():
                 self.release_conn()
 
-    def stream(self, amt=2**16, decode_content=None):
-        """
-        A generator wrapper for the read() method. A call will block until
-        ``amt`` bytes have been read from the connection or until the
-        connection is closed.
-
-        :param amt:
-            How much of the content to read. The generator will return up to
-            much data per iteration, but may return less. This is particularly
-            likely when using compressed data. However, the empty string will
-            never be returned.
-
-        :param decode_content:
-            If True, will attempt to decode the body based on the
-            'content-encoding' header.
-        """
-        while not is_fp_closed(self._fp):
-            data = self.read(amt=amt, decode_content=decode_content)
-
-            if data:
-                yield data
-
-
     @classmethod
     def from_httplib(ResponseCls, r, **response_kw):
         """
@@ -266,35 +239,3 @@ class HTTPResponse(io.IOBase):
 
     def getheader(self, name, default=None):
         return self.headers.get(name, default)
-
-    # Overrides from io.IOBase
-    def close(self):
-        if not self.closed:
-            self._fp.close()
-
-    @property
-    def closed(self):
-        if self._fp is None:
-            return True
-        elif hasattr(self._fp, 'closed'):
-            return self._fp.closed
-        elif hasattr(self._fp, 'isclosed'):  # Python 2
-            return self._fp.isclosed()
-        else:
-            return True
-
-    def fileno(self):
-        if self._fp is None:
-            raise IOError("HTTPResponse has no file to get a fileno from")
-        elif hasattr(self._fp, "fileno"):
-            return self._fp.fileno()
-        else:
-            raise IOError("The file-like object  this HTTPResponse is wrapped "
-                          "around has no file descriptor")
-
-    def flush(self):
-        if self._fp is not None and hasattr(self._fp, 'flush'):
-            return self._fp.flush()
-
-    def readable(self):
-        return True
diff --git a/wakatime/packages/requests/packages/urllib3/util.py b/wakatime/packages/requests/packages/urllib3/util.py
index 39bceab..544f9ed 100644
--- a/wakatime/packages/requests/packages/urllib3/util.py
+++ b/wakatime/packages/requests/packages/urllib3/util.py
@@ -31,6 +31,7 @@ try:  # Test for SSL features
 except ImportError:
     pass
 
+
 from .packages import six
 from .exceptions import LocationParseError, SSLError
 
@@ -60,13 +61,6 @@ class Url(namedtuple('Url', ['scheme', 'auth', 'host', 'port', 'path', 'query',
 
         return uri
 
-    @property
-    def netloc(self):
-        """Network location including host and port"""
-        if self.port:
-            return '%s:%d' % (self.host, self.port)
-        return self.host
-
 
 def split_first(s, delims):
     """
@@ -120,7 +114,7 @@ def parse_url(url):
 
     # While this code has overlap with stdlib's urlparse, it is much
     # simplified for our needs and less annoying.
-    # Additionally, this implementations does silly things to be optimal
+    # Additionally, this imeplementations does silly things to be optimal
     # on CPython.
 
     scheme = None
@@ -149,8 +143,7 @@ def parse_url(url):
 
     # IPv6
     if url and url[0] == '[':
-        host, url = url.split(']', 1)
-        host += ']'
+        host, url = url[1:].split(']', 1)
 
     # Port
     if ':' in url:
@@ -348,20 +341,6 @@ def assert_fingerprint(cert, fingerprint):
                        .format(hexlify(fingerprint_bytes),
                                hexlify(cert_digest)))
 
-def is_fp_closed(obj):
-    """
-    Checks whether a given file-like object is closed.
-
-    :param obj:
-        The file-like object to check.
-    """
-    if hasattr(obj, 'fp'):
-        # Object is a container for another file-like object that gets released
-        # on exhaustion (e.g. HTTPResponse)
-        return obj.fp is None
-
-    return obj.closed
-
 
 if SSLContext is not None:  # Python 3.2+
     def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
diff --git a/wakatime/packages/requests/sessions.py b/wakatime/packages/requests/sessions.py
index b87bd86..f4aeeee 100644
--- a/wakatime/packages/requests/sessions.py
+++ b/wakatime/packages/requests/sessions.py
@@ -71,13 +71,15 @@ class SessionRedirectMixin(object):
         """Receives a Response. Returns a generator of Responses."""
 
         i = 0
+        prepared_request = PreparedRequest()
+        prepared_request.body = req.body
+        prepared_request.headers = req.headers.copy()
+        prepared_request.hooks = req.hooks
+        prepared_request.method = req.method
+        prepared_request.url = req.url
 
         # ((resp.status_code is codes.see_other))
         while (('location' in resp.headers and resp.status_code in REDIRECT_STATI)):
-            prepared_request = PreparedRequest()
-            prepared_request.body = req.body
-            prepared_request.headers = req.headers.copy()
-            prepared_request.hooks = req.hooks
 
             resp.content  # Consume socket so it can be released
 
@@ -88,18 +90,13 @@ class SessionRedirectMixin(object):
             resp.close()
 
             url = resp.headers['location']
-            method = req.method
+            method = prepared_request.method
 
             # Handle redirection without scheme (see: RFC 1808 Section 4)
             if url.startswith('//'):
                 parsed_rurl = urlparse(resp.url)
                 url = '%s:%s' % (parsed_rurl.scheme, url)
 
-            # The scheme should be lower case...
-            if '://' in url:
-                scheme, uri = url.split('://', 1)
-                url = '%s://%s' % (scheme.lower(), uri)
-
             # Facilitate non-RFC2616-compliant 'location' headers
             # (e.g. '/path/to/resource' instead of 'http://domain.tld/path/to/resource')
             # Compliant with RFC3986, we percent encode the url.
@@ -112,12 +109,12 @@ class SessionRedirectMixin(object):
 
             # http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.4
             if (resp.status_code == codes.see_other and
-                    method != 'HEAD'):
+                    prepared_request.method != 'HEAD'):
                 method = 'GET'
 
             # Do what the browsers do, despite standards...
             if (resp.status_code in (codes.moved, codes.found) and
-                    method not in ('GET', 'HEAD')):
+                    prepared_request.method not in ('GET', 'HEAD')):
                 method = 'GET'
 
             prepared_request.method = method
@@ -211,10 +208,7 @@ class Session(SessionRedirectMixin):
         #: Should we trust the environment?
         self.trust_env = True
 
-        #: A CookieJar containing all currently outstanding cookies set on this
-        #: session. By default it is a
-        #: :class:`RequestsCookieJar <requests.cookies.RequestsCookieJar>`, but
-        #: may be any other ``cookielib.CookieJar`` compatible object.
+        # Set up a CookieJar to be used by default
         self.cookies = cookiejar_from_dict({})
 
         # Default connection adapters.
@@ -228,46 +222,6 @@ class Session(SessionRedirectMixin):
     def __exit__(self, *args):
         self.close()
 
-    def prepare_request(self, request):
-        """Constructs a :class:`PreparedRequest <PreparedRequest>` for
-        transmission and returns it. The :class:`PreparedRequest` has settings
-        merged from the :class:`Request <Request>` instance and those of the
-        :class:`Session`.
-
-        :param request: :class:`Request` instance to prepare with this
-        session's settings.
-        """
-        cookies = request.cookies or {}
-
-        # Bootstrap CookieJar.
-        if not isinstance(cookies, cookielib.CookieJar):
-            cookies = cookiejar_from_dict(cookies)
-
-        # Merge with session cookies
-        merged_cookies = RequestsCookieJar()
-        merged_cookies.update(self.cookies)
-        merged_cookies.update(cookies)
-
-
-        # Set environment's basic authentication if not explicitly set.
-        auth = request.auth
-        if self.trust_env and not auth and not self.auth:
-            auth = get_netrc_auth(request.url)
-
-        p = PreparedRequest()
-        p.prepare(
-            method=request.method.upper(),
-            url=request.url,
-            files=request.files,
-            data=request.data,
-            headers=merge_setting(request.headers, self.headers, dict_class=CaseInsensitiveDict),
-            params=merge_setting(request.params, self.params),
-            auth=merge_setting(auth, self.auth),
-            cookies=merged_cookies,
-            hooks=merge_setting(request.hooks, self.hooks),
-        )
-        return p
-
     def request(self, method, url,
         params=None,
         data=None,
@@ -311,22 +265,20 @@ class Session(SessionRedirectMixin):
         :param cert: (optional) if String, path to ssl client cert file (.pem).
             If Tuple, ('cert', 'key') pair.
         """
-        # Create the Request.
-        req = Request(
-            method = method.upper(),
-            url = url,
-            headers = headers,
-            files = files,
-            data = data or {},
-            params = params or {},
-            auth = auth,
-            cookies = cookies,
-            hooks = hooks,
-        )
-        prep = self.prepare_request(req)
 
+        cookies = cookies or {}
         proxies = proxies or {}
 
+        # Bootstrap CookieJar.
+        if not isinstance(cookies, cookielib.CookieJar):
+            cookies = cookiejar_from_dict(cookies)
+
+        # Merge with session cookies
+        merged_cookies = RequestsCookieJar()
+        merged_cookies.update(self.cookies)
+        merged_cookies.update(cookies)
+        cookies = merged_cookies
+
         # Gather clues from the surrounding environment.
         if self.trust_env:
             # Set environment's proxies.
@@ -334,6 +286,10 @@ class Session(SessionRedirectMixin):
             for (k, v) in env_proxies.items():
                 proxies.setdefault(k, v)
 
+            # Set environment's basic authentication.
+            if not auth:
+                auth = get_netrc_auth(url)
+
             # Look for configuration.
             if not verify and verify is not False:
                 verify = os.environ.get('REQUESTS_CA_BUNDLE')
@@ -343,11 +299,30 @@ class Session(SessionRedirectMixin):
                 verify = os.environ.get('CURL_CA_BUNDLE')
 
         # Merge all the kwargs.
+        params = merge_setting(params, self.params)
+        headers = merge_setting(headers, self.headers, dict_class=CaseInsensitiveDict)
+        auth = merge_setting(auth, self.auth)
         proxies = merge_setting(proxies, self.proxies)
+        hooks = merge_setting(hooks, self.hooks)
         stream = merge_setting(stream, self.stream)
         verify = merge_setting(verify, self.verify)
         cert = merge_setting(cert, self.cert)
 
+        # Create the Request.
+        req = Request()
+        req.method = method.upper()
+        req.url = url
+        req.headers = headers
+        req.files = files
+        req.data = data
+        req.params = params
+        req.auth = auth
+        req.cookies = cookies
+        req.hooks = hooks
+
+        # Prepare the Request.
+        prep = req.prepare()
+
         # Send the request.
         send_kwargs = {
             'stream': stream,
@@ -441,7 +416,7 @@ class Session(SessionRedirectMixin):
 
         # It's possible that users might accidentally send a Request object.
         # Guard against that specific failure case.
-        if not isinstance(request, PreparedRequest):
+        if getattr(request, 'prepare', None):
             raise ValueError('You can only send PreparedRequests.')
 
         # Set up variables needed for resolve_redirects and dispatching of
@@ -492,7 +467,7 @@ class Session(SessionRedirectMixin):
         """Returns the appropriate connnection adapter for the given URL."""
         for (prefix, adapter) in self.adapters.items():
 
-            if url.lower().startswith(prefix):
+            if url.startswith(prefix):
                 return adapter
 
         # Nothing matches :-/
diff --git a/wakatime/packages/requests/status_codes.py b/wakatime/packages/requests/status_codes.py
index ed7a866..de38486 100644
--- a/wakatime/packages/requests/status_codes.py
+++ b/wakatime/packages/requests/status_codes.py
@@ -18,8 +18,7 @@ _codes = {
     205: ('reset_content', 'reset'),
     206: ('partial_content', 'partial'),
     207: ('multi_status', 'multiple_status', 'multi_stati', 'multiple_stati'),
-    208: ('already_reported',),
-    226: ('im_used',),
+    208: ('im_used',),
 
     # Redirection.
     300: ('multiple_choices',),
diff --git a/wakatime/packages/requests/structures.py b/wakatime/packages/requests/structures.py
index a175913..8d02ea6 100644
--- a/wakatime/packages/requests/structures.py
+++ b/wakatime/packages/requests/structures.py
@@ -103,7 +103,7 @@ class CaseInsensitiveDict(collections.MutableMapping):
 
     # Copy is required
     def copy(self):
-        return CaseInsensitiveDict(self._store.values())
+         return CaseInsensitiveDict(self._store.values())
 
     def __repr__(self):
         return '%s(%r)' % (self.__class__.__name__, dict(self.items()))
diff --git a/wakatime/packages/requests/utils.py b/wakatime/packages/requests/utils.py
index 37aa19e..b21bf8f 100644
--- a/wakatime/packages/requests/utils.py
+++ b/wakatime/packages/requests/utils.py
@@ -22,7 +22,6 @@ from . import __version__
 from . import certs
 from .compat import parse_http_list as _parse_list_header
 from .compat import quote, urlparse, bytes, str, OrderedDict, urlunparse
-from .compat import getproxies, proxy_bypass
 from .cookies import RequestsCookieJar, cookiejar_from_dict
 from .structures import CaseInsensitiveDict
 
@@ -302,7 +301,7 @@ def stream_decode_response_unicode(iterator, r):
         rv = decoder.decode(chunk)
         if rv:
             yield rv
-    rv = decoder.decode(b'', final=True)
+    rv = decoder.decode('', final=True)
     if rv:
         yield rv
 
@@ -387,34 +386,37 @@ def requote_uri(uri):
 def get_environ_proxies(url):
     """Return a dict of environment proxies."""
 
+    proxy_keys = [
+        'all',
+        'http',
+        'https',
+        'ftp',
+        'socks'
+    ]
+
     get_proxy = lambda k: os.environ.get(k) or os.environ.get(k.upper())
 
     # First check whether no_proxy is defined. If it is, check that the URL
     # we're getting isn't in the no_proxy list.
     no_proxy = get_proxy('no_proxy')
-    netloc = urlparse(url).netloc
-    
+
     if no_proxy:
         # We need to check whether we match here. We need to see if we match
         # the end of the netloc, both with and without the port.
         no_proxy = no_proxy.split(',')
-        
+        netloc = urlparse(url).netloc
+
         for host in no_proxy:
             if netloc.endswith(host) or netloc.split(':')[0].endswith(host):
                 # The URL does match something in no_proxy, so we don't want
                 # to apply the proxies on this URL.
                 return {}
-                
-    # If the system proxy settings indicate that this URL should be bypassed,
-    # don't proxy.
-    if proxy_bypass(netloc):
-        return {}
 
     # If we get here, we either didn't have no_proxy set or we're not going
-    # anywhere that no_proxy applies to, and the system settings don't require
-    # bypassing the proxy for the current URL.
-    return getproxies()
-    
+    # anywhere that no_proxy applies to.
+    proxies = [(key, get_proxy(key + '_proxy')) for key in proxy_keys]
+    return dict([(key, val) for (key, val) in proxies if val])
+
 
 def default_user_agent():
     """Return a string representing the default user agent."""