diff --git a/Students/lascoli/session03/unfinished_mailroom_4.py b/Students/lascoli/session03/unfinished_mailroom_4.py
new file mode 100644
index 00000000..dcc3237e
--- /dev/null
+++ b/Students/lascoli/session03/unfinished_mailroom_4.py
@@ -0,0 +1,122 @@
+#Create a data structure with 2 elements (Name, Dollar Amount Donated)
+
+donor_db = []
+donor_db.append( ("Jimmy Page", [653772.32, 12.17]) )
+donor_db.append( ("Robert Plant", [877.33]) )
+donor_db.append( ("Roger Daltry", [663.23, 43.87, 1.32]) )
+donor_db.append( ("Pete Townsend", [1663.23, 4300.87, 10432.0]) )
+donor_db.append( ("Mick Jagger", [653772.32, 12.17]) )
+
+def write_thk_letrs(user_input2):
+#Write a letter thanking a donor#
+    
+    print ("Dear %s. \n\nThank you for your generous contribution !\n\nYou Rock !\n\n" % (user_input2))    
+    return main()
+
+
+def thanks_note():
+    user_input2 =raw_input('Please provide the full name of the donor, or type "list for a list of donors" :\n\n')
+    
+    if user_input2 == 'list':
+        tmp_list1= []
+        tmp_list2= []
+        i = ""
+        tmp_list1 = donor_list[0::2]
+        for i in tmp_list1:
+            if i not in tmp_list2:
+                tmp_list2.append(i)
+        for x in tmp_list2:
+            print ("\n" + x + "\n")
+        return add_donor()
+
+    else:
+        for d_name in donor_list:
+            if d_name == user_input2:
+                return write_thk_letrs(user_input2)
+
+
+def add_donor():
+    user_input2 =raw_input('Please provide the full name of the donor, or type "list for a list of donors" :\n\n')
+    for d_name in donor_list:
+        
+        if d_name != user_input2:
+            break 
+        
+    while True:
+        user_input3 = raw_input("\n" + user_input2 + " is a new donor,and can be added to the donor list.\n " " \nWould you like"
+    " to make a donation for " + user_input2 + " ?\n\nPlease answer 'Yes' or 'No' ")
+        
+        if user_input3 == "No":
+            main()
+
+        if user_input3 == "Yes":
+            break
+
+    while True:
+        user_input4 = raw_input('Enter the donation amount \n\n ')
+        
+        #if user_input3 == 'menu':
+            #return 'menu'
+        try:
+            user_input4 = float(user_input4)
+            break
+        
+        except ValueError:
+            print 'Specified Donations must be a in a numeric format, renter amount.'  
+
+    
+    user_input4 = "$"+str(user_input4)
+    donor_list.extend([user_input2, user_input4])
+    write_thk_letrs(user_input2)
+
+def donor_report():
+
+    tmp_list3= []
+    tmp_list4= []
+    user_input5 =""
+    i = ""
+    tmp_list3 = donor_list[0::2]
+
+    print("\n\nDonor Name     Total Amount Donated     Number of Donations     Average Donation\n" )
+    for i in tmp_list3:
+        if i not in tmp_list4:
+            tmp_list4.append(i)
+    for x in tmp_list4:
+            print ("\n" + x + "\n")
+       
+def main():
+
+    
+    while True:
+        user_input1 = ''
+        user_input2 = ''
+        user_input3 = ''
+        user_input4 = ''
+        user_input4 = ''
+        
+        user_input1 = raw_input('Welcome to the Donations Support Program\n\n'
+            'Please enter a 1 to Send a Thank You Note \n\n'
+            'Please enter a 2 to Create a Report \n\n'
+            'Please enter a 3 to exit this project \n\n')
+
+
+        if user_input1 == '1':
+            #print("Send a Thank You Note")        
+            return thanks_note()
+            
+
+        if user_input1 == '2':
+            #print("Create a Report")
+            return donor_report()
+        
+
+        if user_input1 == '3':
+            print ("Exiting this Program")
+            break
+    
+                 
+
+if __name__ == '__main__':
+    main()
+
+
diff --git a/Students/lascoli/session04/Dict_Set Lab.py b/Students/lascoli/session04/Dict_Set Lab.py
new file mode 100644
index 00000000..6287bad1
--- /dev/null
+++ b/Students/lascoli/session04/Dict_Set Lab.py	
@@ -0,0 +1,108 @@
+#Create a dictionary
+dict_1 = {}
+dict_1={'name':'Chris','city':'Seattle','cake':'Chocolate'}
+
+#Display the dictionary
+dict_1
+
+#Delete the entry for “cake”.
+dict_1.pop('cake')
+
+#Add an entry for “fruit” with “Mango” and display the dictionary.
+dict_1.setdefault('fruit', 'Mango')
+#Display the dictionary keys
+dict_1.keys()
+
+#Display the dictionary values
+dict_1.keys()
+
+#Display whether or not “cake” is a key in the dictionary (i.e. False) (now).
+'cake'in dict_1
+
+#Display whether or not “Mango” is a value in the dictionary (i.e. True).
+'Mango'in dict_1.values()
+
+#Using the dict constructor and zip, build a dictionary of numbers 
+#from zero to fifteen and the hexadecimal equivalent (string is fine).
+
+def gen_lists():
+    
+    llist1 =[]
+    hlist1 =[]
+    n_list =[]
+    tmp_lists_dict ={}
+
+    llist1 = range(1,16)
+    for i in llist1:
+        x = hex(i)
+        hlist1.append(x)
+        
+    n_list = zip(llist1,hlist1)
+    #return (n_list)
+    tmp_lists_dict = dict(n_list)
+    print (tmp_lists_dict)
+
+
+gen_lists()
+
+
+#Using the dictionary from item 1: Make a dictionary using the same keys but
+#with the number of‘t’s in each value.
+
+dict_1={'name':'Chris','city':'Seattle','cake':'Chocolate'}
+dict_2={}
+list_1=[]
+for a,b in dict_1.items():
+   list_1.append((a,b.count('t')))
+dict_2 =dict(list_1)
+print dict_2
+
+
+#Create sets set_2, set_3 and set_4 that contain numbers from zero through twenty, divisible 2, 3 and 4.
+
+
+s_0 = set(range(21))
+set_2 = []
+set_3 = []
+set_4 = []
+for i in s_0:
+    if i % 2 == 0:
+        set_2.append(i)
+set_2 = set(set_2)
+
+for i in s_0:
+    if i % 3 == 0:
+        set_3.append(i)
+set_3 = set(set_3)
+
+for i in s_0:
+    if i % 4 == 0:
+        set_4.append(i)
+set_4 = set(set_4)
+
+
+#Display the sets.
+print set_1
+print set_2
+print set_3
+print set_4
+
+#Display if set_3 is a subset of set_2 (False)
+
+set(set_3).issubset(set_2)
+
+#if set_4 is a subset of set_2 (True)
+set(set_4).issubset(set_2) 
+
+
+# Create a set with the letters in ‘Python’ and add ‘i’ to the set.
+x = set("Python")
+x.add("i")
+
+# Create a frozenset with the letters in ‘marathon’
+y = frozenset(“marathon”)
+
+# display the union and intersection of the two sets.
+x.union(y)
+x.intersection(y)
+
diff --git a/Students/lascoli/session04/safe_input.py b/Students/lascoli/session04/safe_input.py
new file mode 100644
index 00000000..c4236bf4
--- /dev/null
+++ b/Students/lascoli/session04/safe_input.py
@@ -0,0 +1,10 @@
+"""Creating Wrapper Function Safe Input """
+def safe_input(msg):
+"""Function is called when ^C or ^D occurs"""
+try:
+    x = raw_input(user_action)
+except (EOFError, KeyboardInterrupt):
+    return None
+else:
+    return variaxble
+if __name__ == "__main__":
\ No newline at end of file