From 642eb18dbc79b4a27b1203f3c04562ccb0a5062b Mon Sep 17 00:00:00 2001
From: Priyanshu Dasgupta <priyanshu.dasgupta8@gmail.com>
Date: Sun, 18 Oct 2020 14:39:20 -0700
Subject: [PATCH] Addition of a Data Structures folder in Python (It includes
 files for Lists, Tuples, and Dictionaries)

---
 Python/Data Structures/Dictionary.py | 22 ++++++++++++++++++++++
 Python/Data Structures/Lists.py      | 25 +++++++++++++++++++++++++
 Python/Data Structures/Tuples.py     |  6 ++++++
 3 files changed, 53 insertions(+)
 create mode 100644 Python/Data Structures/Dictionary.py
 create mode 100644 Python/Data Structures/Lists.py
 create mode 100644 Python/Data Structures/Tuples.py

diff --git a/Python/Data Structures/Dictionary.py b/Python/Data Structures/Dictionary.py
new file mode 100644
index 00000000..348546eb
--- /dev/null
+++ b/Python/Data Structures/Dictionary.py	
@@ -0,0 +1,22 @@
+# Dictionaries are data structures formatted somewhat like a JSON document
+
+# Ways to declare a dictionary
+Dict_example = {'key1': 39, 'key2': 21, 'key3': 69}
+Dict_example2 = dict(key1 = 39, key2 = 21, key3 = 69)
+
+
+# Calling methods
+number = Dict_example['key1']
+print(number)  # OUTPUT --> 39
+
+# Changing a value of a key
+Dict_example2['key1'] = 99
+print(Dict_example2['key1'])  # OUTPUT --> 99
+
+# Adding keys to a dictionary
+Dict_example['key4'] = 101
+print(Dict_example['key4'])  # OUTPUT --> 101
+
+# Deleting keys from the existing dictionary
+del Dict_example2['key3']
+print(Dict_example2)  # OUTPUT --> {'key1': 99, 'key2': 21}
\ No newline at end of file
diff --git a/Python/Data Structures/Lists.py b/Python/Data Structures/Lists.py
new file mode 100644
index 00000000..fee55d57
--- /dev/null
+++ b/Python/Data Structures/Lists.py	
@@ -0,0 +1,25 @@
+# Lists or Arrays are present in all main programming languages
+
+# Declaration or creation of a list 
+Fruits = ["apple", "banana", "orange", "pear"]
+Numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+
+# Basic indexing ways upon lists
+print(Fruits[0])  # Output --> "apple"; arrayName[index]; index = n-1 (in the list)
+print(Fruits[-1], "\n")  # Output --> "pear"; arrayName[index]; index = n-1 (in the list)
+print(Fruits[0:3], "\n")  # Output --> "apple"; "banana", "orange"; To output several values
+print(Fruits[0:4:2], "\n")  # Output --> "apple", "orange"; To have a skipping value
+
+# Functions upon lists
+
+Fruits.append("pineapple")  # Adds pineapple as the last element of the list
+print(Fruits, "\n")
+
+Fruits.remove("pear")  # Removes pear from the list
+print(Fruits, "\n")
+
+Fruits.insert(3, "grapes") # Inserts grapes as the fourth element of the list
+print(Fruits, "\n")
+
+del Fruits[2:4]  # Deletes certain values
+print(Fruits)
\ No newline at end of file
diff --git a/Python/Data Structures/Tuples.py b/Python/Data Structures/Tuples.py
new file mode 100644
index 00000000..dd6a796b
--- /dev/null
+++ b/Python/Data Structures/Tuples.py	
@@ -0,0 +1,6 @@
+# Tuples are another type of Data Structures mainly in Python
+
+This_is_a_tuple = ("these", "are", "values", "in", "a", "tuple")  # Declaration and/or creation
+word = This_is_a_tuple[0]  # Accessing and/or indexing
+
+print(word)  # OUTPUT ---> these
\ No newline at end of file