set and loops

Author: Prabhakar-Naik

collections/sets.py

@@ -0,0 +1,56 @@
+# Sets
+nums = {1,2,3,4,5}
+nums2 = set((1,2,3,4,5))
+
+print(nums)
+print(nums2)
+
+print(type(nums))
+print(type(nums2))
+
+print(len(nums))
+
+# no duplicates alllowed
+nums = {1,2,2,2,3,4,5}
+print(nums)
+
+# True ia a dupe of 1, False is dupe of zero
+nums = {1, True, 2, 3, False, 4, 0, 5}
+print(nums)
+
+# check if a value is in a set
+print(2 in nums)
+
+# but we cannot refer to an element in the set with an index position or key
+# add a new element to a set
+nums.add(8)
+print(nums)
+
+# add an elements from one set to another
+morenums = {6,7,9}
+nums.update(morenums)
+
+print(nums)
+
+# we can use update with list, tuples, and dictionaries, too.
+
+# merge two sets to create a new set
+one = {1,2,3}
+two = {4,5,6}
+
+mynewSet = one.union(two)
+print(mynewSet)
+
+# keep only duplicates
+one = {1,2,3}
+two = {2,3,6}
+
+one.intersection_update(two)
+print(one)
+
+# keep everything except the duplicates
+one = {1,2,3}
+two = {2,3,4}
+
+one.symmetric_difference_update(two)
+print(one)

loops/whileloop.py

@@ -48,3 +48,14 @@
 while i <= 10:
     print(i)
     i += 2
+
+print(" while loop demo")
+value = 0
+while value <=10:
+    value += 1
+    if value == 5:
+        continue
+    print(value)
+else:
+    print("Value is now equals to ",value)
+