diff --git a/.gitignore b/.gitignore
index a97e73a..229b1af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,6 @@ summon_process.egg-info
 dist
 build
 *.pyc
+
+.idea/
+atlassian-ide-plugin.xml
diff --git a/README.rst b/README.rst
index 4e92db9..82e5f30 100644
--- a/README.rst
+++ b/README.rst
@@ -1,8 +1,7 @@
 summon_process
 ==============
 
-**Current status:** work in progress. The code is lacking proper documentation
-and is broken on Python 3.3.
+**Current status:** work in progress. The code is lacking proper documentation.
 
 .. image:: https://travis-ci.org/mlen/summon_process.png?branch=master
     :target: https://travis-ci.org/mlen/summon_process
diff --git a/setup.py b/setup.py
index 6f76ffe..2f2ff45 100644
--- a/setup.py
+++ b/setup.py
@@ -1,9 +1,9 @@
 from setuptools import setup, find_packages
 
 setup(name='summon_process',
-      version='0.1.3',
+      version='0.1.4',
       description='Process coordinator for tests',
-      long_description=file('README.rst').read(),
+      long_description=open('README.rst').read(),
       url='https://github.com/mlen/summon_process',
       author='Mateusz Lenik',
       author_email='mlen@mlen.pl',
diff --git a/summon_process/executors/simple_executor.py b/summon_process/executors/simple_executor.py
index e92ed4a..263c97b 100644
--- a/summon_process/executors/simple_executor.py
+++ b/summon_process/executors/simple_executor.py
@@ -31,11 +31,20 @@ def running(self):
             return self._process.poll() is None
 
     def start(self):
+        """
+        .. note::
+            We want to open ``stdin``, ``stdout`` and ``stderr`` as text
+            streams in universal newlines mode, so we have to set
+            ``universal_newlines`` to ``True``.
+        """
         if self._process is None:
-            self._process = subprocess.Popen(self._args,
-                                             shell=self._shell,
-                                             stdin=subprocess.PIPE,
-                                             stdout=subprocess.PIPE)
+            self._process = subprocess.Popen(
+                self._args,
+                shell=self._shell,
+                stdin=subprocess.PIPE,
+                stdout=subprocess.PIPE,
+                universal_newlines=True,
+            )
         if self._timeout:
             self._endtime = time.time() + self._timeout
 
diff --git a/summon_process/tests/executors/test_http_coordinated_executor.py b/summon_process/tests/executors/test_http_coordinated_executor.py
index dc301b6..4800c19 100644
--- a/summon_process/tests/executors/test_http_coordinated_executor.py
+++ b/summon_process/tests/executors/test_http_coordinated_executor.py
@@ -1,7 +1,15 @@
 import os
 
 from unittest import TestCase
-from httplib import HTTPConnection, OK
+
+
+try:
+    from httplib import HTTPConnection, OK
+    http_server = "SimpleHTTPServer"
+except ImportError:
+    # In python3 httplib is renamed to http.client
+    from http.client import HTTPConnection, OK
+    http_server = "http.server"
 
 from summon_process.executors import HTTPCoordinatedExecutor, TimeoutExpired
 
@@ -11,7 +19,9 @@ class TestHTTPCoordinatedExecutor(TestCase):
     port = "8000"
 
     def test_it_waits_for_process_to_complete_head_request(self):
-        command = 'bash -c "sleep 3 && exec python -m SimpleHTTPServer"'
+        command = 'bash -c "sleep 3 && exec python -m {http_server}"'.format(
+            http_server=http_server,
+        )
         executor = HTTPCoordinatedExecutor(
             command, 'http://{0}:{1}/'.format(self.host, self.port)
         )
diff --git a/summon_process/tests/slow_server.py b/summon_process/tests/slow_server.py
index f0dce69..6903673 100644
--- a/summon_process/tests/slow_server.py
+++ b/summon_process/tests/slow_server.py
@@ -1,9 +1,16 @@
 import time
 
-from BaseHTTPServer import (
-    HTTPServer,
-    BaseHTTPRequestHandler,
-)
+try:
+    from BaseHTTPServer import (
+        HTTPServer,
+        BaseHTTPRequestHandler,
+    )
+except ImportError:
+    # python3
+    from http.server import (
+        HTTPServer,
+        BaseHTTPRequestHandler,
+    )
 
 
 class SlowServerHandler(BaseHTTPRequestHandler):