Improved .coveragerc file.

Author: Paebbels

.coveragerc

@@ -1,9 +1,14 @@
 [run]
 branch = true
+omit =
+	*site-packages*
 
 [report]
 skip_covered = True
 skip_empty = True
+exclude_lines =
+	if __name__ == "__main__":
+	raise NotImplementedError
 
 [html]
 directory = .cov