diff --git a/cs171/Lect06/counting.py b/cs171/Lect06/counting.py
new file mode 100644
index 0000000000000000000000000000000000000000..2eab323d2f69dcee20b03b57131c2b576b399842
--- /dev/null
+++ b/cs171/Lect06/counting.py
@@ -0,0 +1,23 @@
+
+
+def countUp(low, high, step=1):
+ while low <= high:
+ print(low)
+ low += step
+
+def countDown(high, low=1, step=1):
+ ''' Good place to define step to be a non-negative int'''
+ while high >= low:
+ print(high)
+ high -= step
+
+
+# countUp(1, 10)
+countUp(10, 100, 10)
+
+#countDown(50, 25, 5)
+#countDown(int(input("Count down from what: ")))
+
+myText = "I like the Drexel Dragon, whose name is Mario"
+myWords = myText.split()
+print(myWords)
\ No newline at end of file
diff --git a/cs171/Lect06/hello.py b/cs171/Lect06/hello.py
new file mode 100644
index 0000000000000000000000000000000000000000..97bca488f83b90d75bb7a5384de809d8ca1fdc83
--- /dev/null
+++ b/cs171/Lect06/hello.py
@@ -0,0 +1,33 @@
+print("hello again")
+
+def golfWinner(left, right):
+ print("We have two bad golfers...")
+ if left < right:
+ return "Left"
+ else:
+ return "Right"
+ print("Thank you for playing")
+
+def golf(left=0, right=0):
+ if left < right:
+ print("Left wins")
+ else:
+ print("Right wins")
+
+def sum(left, right):
+ return left + right
+
+
+ #Parameter
+def sayHello(dayName): # Begin Definition
+ print("It is a ", dayName)
+ print("This is your lecture")
+ print("microphone")
+ print("Oh, and hello") # End Definition
+
+ #Argument
+todayIs = "Monday"
+sayHello("Tuesday") # Call Function
+
+print(golfWinner(100, 200))
+
diff --git a/cs171/Lect06/import.py b/cs171/Lect06/import.py
new file mode 100644
index 0000000000000000000000000000000000000000..e4add0067e5bc5f87085d57c8a46d4f0895ac6d2
--- /dev/null
+++ b/cs171/Lect06/import.py
@@ -0,0 +1,3 @@
+from scope import doSomething
+
+doSomething("Something")
\ No newline at end of file
diff --git a/cs171/Lect06/nested.py b/cs171/Lect06/nested.py
new file mode 100644
index 0000000000000000000000000000000000000000..f2e1abb463d78d41ce51252c5f6b7a4a911e91b2
--- /dev/null
+++ b/cs171/Lect06/nested.py
@@ -0,0 +1,9 @@
+
+
+def sum(a, b):
+ return a + b
+
+def mul(a, b):
+ return a * b
+
+print(sum(mul(18, sum(3, 0)), sum(mul(2, 2), 4)))
\ No newline at end of file
diff --git a/cs171/Lect06/scope.py b/cs171/Lect06/scope.py
new file mode 100644
index 0000000000000000000000000000000000000000..360e0036ff94ca03542a306b64a2dc76e0c00e7f
--- /dev/null
+++ b/cs171/Lect06/scope.py
@@ -0,0 +1,10 @@
+
+
+def doSomething(text, endChar=''):
+ print(text.upper() + endChar)
+ print(value)
+
+if __name__ == '__main__':
+ value = 10
+ doSomething("hello", '!')
+ print(value)
diff --git a/cs171/Lect06/swap.py b/cs171/Lect06/swap.py
new file mode 100644
index 0000000000000000000000000000000000000000..d5478f6e56e1d18be3d5fe3f9d5cbb146904ab63
--- /dev/null
+++ b/cs171/Lect06/swap.py
@@ -0,0 +1,23 @@
+
+
+def family():
+ ''' Returns a tuple of family member '''
+ return ("Mother", "Father", "Brother")
+
+def swap(myList):
+ temp = myList[1]
+ myList[1] = myList[0]
+ myList[0] = temp
+ return myList
+
+def lazySwap(yourList):
+ ''' Exchanges the values in the first two positions of the list'''
+ yourList[0], yourList[1] = yourList[1], yourList[0]
+
+member1, member2, member3 = family()
+
+print(swap(["Red", "Green"]))
+
+theirList = ["Philadelphia", "Pennsylvania"]
+lazySwap(theirList)
+print(theirList)
diff --git a/cs172/Lect06/PQ.py b/cs172/Lect06/PQ.py
new file mode 100644
index 0000000000000000000000000000000000000000..3846b888299290853155b6a13ff3e3c1c12e5e09
--- /dev/null
+++ b/cs172/Lect06/PQ.py
@@ -0,0 +1,8 @@
+from queue import PriorityQueue
+
+pq = PriorityQueue()
+
+pq.put((1, "One"))
+pq.put((10, "Ten"))
+
+print(pq.get())
\ No newline at end of file
diff --git a/cs172/Lect06/hello.py b/cs172/Lect06/hello.py
new file mode 100644
index 0000000000000000000000000000000000000000..da9eaccc3d91b360535b6d7f3853661d25fc0e5f
--- /dev/null
+++ b/cs172/Lect06/hello.py
@@ -0,0 +1,15 @@
+from queue import Queue, LifoQueue
+
+myQueue = Queue()
+myStack = LifoQueue()
+
+myQueue.put(5)
+myQueue.put(10)
+
+myStack.put(5)
+myStack.put(10)
+
+while not myStack.empty():
+ print(myStack.get())
+
+#print(myQueue)
\ No newline at end of file
diff --git a/cs172/Lect06/myqueue.py b/cs172/Lect06/myqueue.py
new file mode 100644
index 0000000000000000000000000000000000000000..fdfbba8063b30aa980bb16cc4a46f0329e2e03f0
--- /dev/null
+++ b/cs172/Lect06/myqueue.py
@@ -0,0 +1,33 @@
+class myQueue:
+
+ def __init__(self):
+ self.__contents = []
+
+ def get(self):
+ return self.__contents.pop(0)
+
+ def put(self, thing):
+ self.__contents.append(thing)
+
+ def empty(self):
+ return len(self.__contents) == 0
+
+ def clear(self):
+ self.__contents = []
+
+ def __str__(self):
+ return str(self.__contents)
+
+if __name__ == "__main__":
+ testQueue = myQueue()
+ testQueue.put(5)
+ testQueue.put(10)
+
+ # testQueue.clear()
+
+ print(testQueue)
+ print(testQueue.empty())
+
+ print(testQueue.get())
+ print(testQueue)
+
diff --git a/cs172/Lect06/mystack.py b/cs172/Lect06/mystack.py
new file mode 100644
index 0000000000000000000000000000000000000000..4ffb7fbcffa08b64159b533eb2f228b813ea0be7
--- /dev/null
+++ b/cs172/Lect06/mystack.py
@@ -0,0 +1,32 @@
+class MyStack:
+
+ def __init__(self):
+ self.__contents = []
+
+ def get(self):
+ return self.__contents.pop()
+
+ def put(self, thing):
+ self.__contents.append(thing)
+
+ def empty(self):
+ return len(self.__contents) == 0
+
+ def clear(self):
+ self.__contents = []
+
+ def __str__(self):
+ return str(self.__contents)
+
+if __name__ == "__main__":
+ testStack = MyStack()
+ testStack.put(5)
+ testStack.put(10)
+
+ # testStack.clear()
+
+ print(testStack)
+ print(testStack.empty())
+
+ print(testStack.get())
+ print(testStack)