diff --git a/ChangeLog.md b/ChangeLog.md
index b88e08b..473c483 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Gitchart ChangeLog
 
+## Version 2.0.1 (under dev)
+
+- Add `gitchart` module.
+
 ## Version 2.0.0 (2021-11-24)
 
 - Drop Python 2 support, Python 3.6 is now required.
diff --git a/gitchart/__init__.py b/gitchart/__init__.py
new file mode 100644
index 0000000..5746778
--- /dev/null
+++ b/gitchart/__init__.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2013-2021 Sébastien Helleu <flashcode@flashtux.org>
+#
+# This file is part of Gitchart.
+#
+# Gitchart is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Gitchart is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Gitchart.  If not, see <https://www.gnu.org/licenses/>.
+#
+
+"""Generate statistic charts on Git repositories."""
+
+from gitchart.gitchart import *  # noqa
diff --git a/gitchart.py b/gitchart/gitchart.py
similarity index 99%
rename from gitchart.py
rename to gitchart/gitchart.py
index 7e4dd7b..f50cd13 100755
--- a/gitchart.py
+++ b/gitchart/gitchart.py
@@ -48,7 +48,12 @@
 
 import pygal
 
-VERSION = '2.0.0'
+__version__ = '2.0.1-dev'
+
+__all__ = (
+    '__version__',
+    'main',
+)
 
 ISSUES_REGEX_DEFAULT = re.compile(
     r'(?:close|closes|closed|fix|fixes|fixed|resolve|resolves|resolved)'
@@ -511,7 +516,7 @@ def main():
     parser.add_argument(
         '-v', '--version',
         action='version',
-        version=VERSION)
+        version=__version__)
     if len(sys.argv) == 1:
         parser.print_help()
         sys.exit(1)
diff --git a/setup.py b/setup.py
index 5d6c46e..0a11d6b 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,8 @@
 #
 
 from codecs import open
-from setuptools import setup
+from setuptools import setup, find_packages
+from gitchart import __version__ as gitchart_version
 
 DESCRIPTION = 'Generate statistic charts on Git repositories.'
 
@@ -28,7 +29,7 @@
 
 setup(
     name='gitchart',
-    version='2.0.0',
+    version=gitchart_version,
     description=DESCRIPTION,
     long_description=readme,
     long_description_content_type='text/markdown',
@@ -49,8 +50,10 @@
         'Programming Language :: Python :: 3',
         'Topic :: Software Development :: Version Control',
     ],
-    packages=['.'],
-    install_requires=['pygal'],
+    packages=find_packages(),
+    install_requires=[
+        'pygal',
+    ],
     entry_points={
         'console_scripts': ['gitchart=gitchart:main'],
     }