Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/skimage/exposure/setup.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+import os
+
+base_path = os.path.abspath(os.path.dirname(__file__))
+
+
+def configuration(parent_package='', top_path=None):
+    from numpy.distutils.misc_util import Configuration
+
+    config = Configuration('exposure', parent_package, top_path)
+
+    return config
+
+
+if __name__ == '__main__':
+    from numpy.distutils.core import setup
+    setup(maintainer='scikit-image Developers',
+          author='scikit-image Developers',
+          maintainer_email='scikit-image@python.org',
+          description='Exposure corrections',
+          url='https://github.com/scikit-image/scikit-image',
+          license='SciPy License (BSD Style)',
+          **(configuration(top_path='').todict())
+          )