+If you are in this case, I recommend take a look at `Issue #10`_ and let me know if this workaround doesn't work for you.\r
+\r
+.. code:: bash\r
+\r
+ export ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future\r
+ sudo pip install rainbowstream\r
+\r
+If installation in *the quick way* doesn't work, first try to use the *virtualenv way* before creating an issue.\r
+In the issue, please provide following information:\r
+\r
+- Your OS\r
+- Your Python version\r