Added random_question.py with basic usage (#164)

scripts/random_question.py

@@ -0,0 +1,50 @@
+import random
+import optparse
+
+
+def main():
+    """ Reads through README.md for question/answer pairs and adds them to a list to randomly select from and quiz yourself. 
+        - supports skipping quesitons with no documented answer with the -s flag
+    """
+    parser = optparse.OptionParser()
+    parser.add_option("-s", "--skip", action="store_true",help="skips questions without an answer.", default=False)
+    options, args = parser.parse_args()
+    
+    with open('README.md', 'r') as f:
+        text = f.read()
+        
+    questions = []
+    
+    while True:
+        question_start = text.find('<summary>') + 9
+        question_end = text.find('</summary>')
+        answer_end = text.find('</b></details>')
+        
+        if answer_end == -1:
+            break
+        
+        question = text[question_start: question_end].replace('<br>', '').replace('<b>', '')
+        answer = text[question_end + 17: answer_end]
+        questions.append((question, answer))
+        text = text[answer_end + 1:]
+        
+    num_questions = len(questions)
+    
+    while True:
+        try:
+            question, answer = questions[random.randint(0, num_questions)]
+            
+            if options.skip and not answer.strip():
+                continue
+            
+            if input(f'Q: {question} ...Show answer? "y" for yes: ').lower() == 'y':
+                print('A: ', answer)
+        
+        except KeyboardInterrupt:
+            break
+        
+    print("\nGoodbye! See you next time.")
+                
+
+if __name__ == '__main__':
+    main()