Working with Tuples in python

python basics/tuples.py

@@ -0,0 +1,47 @@
+"""This is example for describing work with tuple.
+
+Author: mhrownaghi
+Github Page: https://github.com/mhrownaghi
+"""
+
+# create a tuple
+fruits = ("apple", "banana", "orange", "cherry")
+
+# access to tuple's elements
+print(fruits[0])  # print -> apple
+print(fruits[1])  # print -> banana
+print(fruits[2])  # print -> orange
+print(fruits[3])  # print -> cherry
+print(fruits[-1])  # print -> cherry
+print(fruits[-2])  # print -> orange
+print(fruits[2:4])  # print -> orange cherry
+print(fruits[:3])  # print -> apple banana orange
+print(fruits[2:])  # print -> orange cherry
+
+# Tuples are ReadOnly
+# fruits[0] = "tomato" # this will raise an error
+
+grades1 = (10, 20, 15, 14)
+grades2 = (5, 10, 7, 6)
+print(grades2 < grades1)  # print -> True
+print(grades1 > grades2)  # print -> True
+print(grades1 == grades2)  # print -> False
+print(grades1 != grades2)  # print -> True
+# (grades1 <= grades2) == (grades1 == grades2 or grades1 < grades2)
+print(grades1 <= grades2)  # print -> False
+print(grades1 < grades2 or grades1 == grades2)  # print -> False
+# (grades1 >= grades2) == (grades1 == grades2 or grades1 > grades2)
+print(grades1 >= grades2)  # print -> True
+print(grades1 > grades2 or grades1 == grades2)  # print -> True
+
+(math, english, physics, sport) = grades1   # unpacking
+print(math)  # print -> 10
+print(english)  # print -> 20
+print(physics)  # print -> 15
+print(sport)  # print -> 14
+
+numbers = (1, 2, 6, 2, 3, 4, 1, 4, 7, 2, 4, 2)
+# Print the number of times the value 2 appears in the tuple:
+print(numbers.count(2))  # print -> 4
+# Search for the first occurrence of the value 7, and return its position:
+print(numbers.index(7))  # print -> 8