Adding source code files for Chapter 6

Chapter6/lambda/lambda1.py

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+# lambda1.py to get square of each item in a list
+
+mylist = [1, 2, 3, 4, 5]
+new_list = list(map(lambda x: x*x, mylist))
+print(new_list)

Chapter6/lambda/lambda2.py

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+# lambda2.py to get even numbers from a list
+
+mylist = [1, 2, 3, 4, 5,6,7,8,9]
+new_list = list(filter(lambda x: x % 2 == 0, mylist))
+print(new_list)

Chapter6/lambda/lambda3.py

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+# lambda3.py to get product of corresponding item in the two lists
+
+mylist1 = [1, 2, 3, 4, 5]
+mylist2 = [6, 7, 8, 9]
+new_list = list(map(lambda x,y: x*y, mylist1, mylist2))
+print(new_list)