diff --git a/lib/a_name_error.py b/lib/a_name_error.py
index 841d7921b..eb5592a03 100644
--- a/lib/a_name_error.py
+++ b/lib/a_name_error.py
@@ -1,3 +1,4 @@
 #!/usr/bin/env python3
 
+hello_world = "George"
 print(hello_world)
diff --git a/lib/a_syntax_error.py b/lib/a_syntax_error.py
index 0ba09ba5b..89488eb1a 100644
--- a/lib/a_syntax_error.py
+++ b/lib/a_syntax_error.py
@@ -1,3 +1,3 @@
 #!/usr/bin/env python3
 
-poor_syntax = 2 * #
+poor_syntax = 2 * 2
diff --git a/lib/a_type_error.py b/lib/a_type_error.py
index db7a7f238..7f7217844 100644
--- a/lib/a_type_error.py
+++ b/lib/a_type_error.py
@@ -1,3 +1,3 @@
 #!/usr/bin/env python3
 
-wrong_type = 'abc' + 123
+wrong_type = 'abc' + '123'
diff --git a/lib/an_assertion_error.py b/lib/an_assertion_error.py
index 3f12d9bf4..90b764d39 100644
--- a/lib/an_assertion_error.py
+++ b/lib/an_assertion_error.py
@@ -1,3 +1,3 @@
 #!/usr/bin/env python3
 
-assert(1 == 2)
+assert(1 == 1)