diff --git a/csv2shex/__init__.py b/csv2shex/__init__.py
index d5feedb..6348b5c 100644
--- a/csv2shex/__init__.py
+++ b/csv2shex/__init__.py
@@ -1,3 +1,4 @@
 """Generate ShEx schemas from DC Application Profiles."""
-
+from .csvshape import CSVShape, CSVTripleConstraint, CSVSchema
+from .csvreader import csvreader
 __version__ = "0.3.0"
diff --git a/pyproject.toml b/pyproject.toml
index c19f18c..b458dc2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["flit"]
+requires = ["setuptools!=50.0","flit"]
 build-backend = "flit.buildapi"
 
 [tool.flit.metadata]
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..c2d81a4
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,5 @@
+from setuptools import setup
+
+setup(name="csv2shex",
+  py_modules=["csv2shex"]
+  )