diff --git a/README.rst b/README.rst
index d6c03ebe..00a9fd1c 100644
--- a/README.rst
+++ b/README.rst
@@ -889,7 +889,7 @@ support that, the whole file will simply be downloaded:
 Other notes:
 
 * The ``--download`` option only changes how the response body is treated.
-* You can still set custom headers, use ``--verbose, -v``, etc.
+* You can still set custom headers, use sessions, ``--verbose, -v``, etc.
 * ``--download`` always implies ``--follow`` (redirects are followed).
 * HTTPie exits with status code ``1`` (error) if the body hasn't been fully
   downloaded.
diff --git a/httpie/input.py b/httpie/input.py
index 6b637f22..878bcfc6 100644
--- a/httpie/input.py
+++ b/httpie/input.py
@@ -115,8 +115,7 @@ class Parser(ArgumentParser):
         self._parse_items()
         if not env.stdin_isatty:
             self._body_from_file(self.env.stdin)
-        if not (self.args.url.startswith(HTTP)
-                or self.args.url.startswith(HTTPS)):
+        if not (self.args.url.startswith((HTTP, HTTPS))):
             # Default to 'https://' if invoked as `https args`.
             scheme = HTTPS if self.env.progname == 'https' else HTTP
             self.args.url = scheme + self.args.url
diff --git a/tests/tests.py b/tests/tests.py
index c5a66d6c..49c81c56 100755
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -19,7 +19,6 @@ To make it run faster and offline you can::
     HTTPBIN_URL=http://localhost:5000 tox
 
 """
-from io import BytesIO
 import subprocess
 import os
 import sys