Python: Simplify test suite generation by using unittest discovery (#485)

diff --git a/.gitignore b/.gitignore
index 3850f8c..7fe7b1a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,17 @@
+# C
 *.o
-*.pyc
-*.txt.uncompressed
-*.bro
-*.unbro
 bin/
 buildfiles/
 **/obj/
 dist/
+
+# Python
+__pycache__/
+*.py[cod]
+*.so
+*.egg-info/
+
+# Tests
+*.txt.uncompressed
+*.bro
+*.unbro