Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/scipy/signal/setup.py

@@ -0,0 +1,42 @@
+from scipy._build_utils import numpy_nodepr_api
+
+
+def configuration(parent_package='', top_path=None):
+    from numpy.distutils.misc_util import Configuration
+    from scipy._build_utils.compiler_helper import set_c_flags_hook
+
+    config = Configuration('signal', parent_package, top_path)
+
+    config.add_data_dir('tests')
+
+    config.add_subpackage('windows')
+
+    sigtools = config.add_extension('sigtools',
+                         sources=['sigtoolsmodule.c', 'firfilter.c',
+                                  'medianfilter.c', 'lfilter.c.src',
+                                  'correlate_nd.c.src'],
+                         depends=['sigtools.h'],
+                         include_dirs=['.'],
+                         **numpy_nodepr_api)
+    sigtools._pre_build_hook = set_c_flags_hook
+
+    config.add_extension(
+        '_spectral', sources=['_spectral.c'])
+    config.add_extension(
+        '_max_len_seq_inner', sources=['_max_len_seq_inner.c'])
+    config.add_extension(
+        '_peak_finding_utils', sources=['_peak_finding_utils.c'])
+    config.add_extension(
+        '_sosfilt', sources=['_sosfilt.c'])
+    config.add_extension(
+        '_upfirdn_apply', sources=['_upfirdn_apply.c'])
+    spline_src = ['splinemodule.c', 'S_bspline_util.c', 'D_bspline_util.c',
+                  'C_bspline_util.c', 'Z_bspline_util.c', 'bspline_util.c']
+    config.add_extension('spline', sources=spline_src, **numpy_nodepr_api)
+
+    return config
+
+
+if __name__ == '__main__':
+    from numpy.distutils.core import setup
+    setup(**configuration(top_path='').todict())