Python 3 Debugging SyntaxError: invalid syntax

Causes of the Python 3 error message SyntaxError: invalid syntax are examined, along with how to correct the error in each case.
0:00 Introduction
0:12 Cause #1: Missing Comma
0:45 Cause #2: Unbalanced Parentheses
1:24 Cause #3: String Delimiter inside a String
2:08 Cause #4: Assignment to a Reserved Word
2:32 Cause #5: Using = instead of ==
3:11 Cause #6: Malformed Relational Operators
3:42 Cause #7: Missing Condition
4:09 Cause #8: Missing Colon
4:41 Cause #9: Malformed For Loop
5:09 Cause #10: Missing Comma in a List
5:39 Cause #11: Unbalanced Square Brackets
6:23 Conclusion