diff --git a/.gitignore b/.gitignore
index 9090bd6..2c9f974 100644
--- a/.gitignore
+++ b/.gitignore
@@ -275,3 +275,110 @@ TSWLatexianTemp*
 
 # standalone packages
 *.sta
+
+# python #######################################################################
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+.static_storage/
+.media/
+local_settings.py
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
diff --git a/examples.py b/examples.py
new file mode 100644
index 0000000..631c883
--- /dev/null
+++ b/examples.py
@@ -0,0 +1,31 @@
+from quorums.quorums import *
+
+a = Node('a')
+b = Node('b')
+c = Node('c')
+d = Node('d')
+e = Node('e')
+f = Node('f')
+g = Node('g')
+h = Node('h')
+i = Node('i')
+
+
+def main():
+    # TODO(mwhittaker): Add more quorums and tidy up.
+    quorum_systems = {
+        'majority': QuorumSystem(reads=majority([a, b, c])),
+        'read one, write all': QuorumSystem(reads=choose(1, [a, b, c])),
+        'write one, read all': QuorumSystem(writes=choose(1, [a, b, c])),
+        '3 by 3 grid': QuorumSystem(reads=a*b*c + d*e*f + g*h*i),
+    }
+
+    for name, qs in quorum_systems.items():
+        sigma = qs.strategy(read_fraction=0.5)
+        print(name)
+        print(qs)
+        print(sigma)
+        print(sigma.load(read_fraction=0.5))
+
+if __name__ == '__main__':
+    main()
diff --git a/quorums/__init__.py b/quorums/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/quorums/quorums.py b/quorums/quorums.py
index 5a27c50..ad0c44a 100644
--- a/quorums/quorums.py
+++ b/quorums/quorums.py
@@ -420,16 +420,16 @@ class ExplicitStrategy(Strategy[T]):
         return np.random.choice(self.writes, p=self.write_weights)
 
 
-a = Node('a', write_capacity=200, read_capacity=400)
-b = Node('b', write_capacity=100, read_capacity=200)
-c = Node('c', write_capacity=50, read_capacity=100)
-
-qs = QuorumSystem(reads = a*b + a*c)
-print(list(qs.read_quorums()))
-sigma = qs.strategy(read_fraction=0.5)
-print(list(qs.write_quorums()))
-print(sigma)
-print(1 / sigma.load(read_fraction=0.5))
+# a = Node('a', write_capacity=200, read_capacity=400)
+# b = Node('b', write_capacity=100, read_capacity=200)
+# c = Node('c', write_capacity=50, read_capacity=100)
+#
+# qs = QuorumSystem(reads = a*b + a*c)
+# print(list(qs.read_quorums()))
+# sigma = qs.strategy(read_fraction=0.5)
+# print(list(qs.write_quorums()))
+# print(sigma)
+# print(1 / sigma.load(read_fraction=0.5))
 
 # d = Node('d')
 # e = Node('e')