Add missing psutil dependency

Author: tmpaul

Diff for: setup.py

@@ -1,33 +1,25 @@
 # coding: utf8
 from setuptools import setup, find_packages
 
-
 __author__ = 'Tharun Mathew Paul ([email protected])'
 
-
-setup(name='unklearn_python_runtime',
-      version='0.1',
-      description='Python runtime for Unklearn notebooks',
-      author='Tharun Mathew Paul',
-      author_email='[email protected]',
-      license='MIT',
-      packages=find_packages('.', include=['core'], exclude=['**/tests/*.py']),
-      zip_safe=True,
-      project_urls={
+setup(
+    name='unklearn_python_runtime',
+    version='0.1',
+    description='Python runtime for Unklearn notebooks',
+    author='Tharun Mathew Paul',
+    author_email='[email protected]',
+    license='MIT',
+    packages=find_packages('.', include=['core'], exclude=['**/tests/*.py']),
+    zip_safe=True,
+    project_urls={
         "Source Code": "https://github.com/unklearn/python-runtime",
-      },
-      extras_require={
-        'testing': [
-            'pytest',
-            'coverage',
-            'pytest-mock',
-            'pytest-asyncio'
-        ],
-        'development': [
-            'yapf'
-        ]
-      },
-      classifiers=[
+    },
+    extras_require={
+        'testing': ['pytest', 'coverage', 'pytest-mock', 'pytest-asyncio'],
+        'development': ['yapf']
+    },
+    classifiers=[
         # Trove classifiers
         # Full list: https://pypi.python.org/pypi?%3Aaction=list_classifiers
         'License :: OSI Approved :: MIT License',
@@ -38,10 +30,5 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy'
-      ],
-      install_requires=[
-            'tornado',
-            'requests',
-            'flask-socketio'
-      ])
-
+    ],
+    install_requires=['tornado', 'requests', 'flask-socketio', 'psutil'])