Sayantan's Blog On Python Programming
PYTHON LISTS
PYTHON LIST SHALLOW COPY INTRODUCTION There are two types of copy operations are available in Python. In this article we will discuss on SHALLOW copy operations. Shallow copy operation represents that if we change or modify any of the list then the other list will also be impacted. There are several ways we can create …
PYTHON LIST DEEP COPY INTRODUCTION In deep copy operation, changes in original list does not have the impact on copied list and vice-versa. There are three ways we can create deep copy in Python. List Slicing Operation PYTHON LIST DEEP COPY : Output In the above example, we can see that we have removed the …
PYTHON LIST BUILT-IN FUNCTIONS INTRODUCTIONS Python provides some useful built-in functions which can be used while working with lists. len() FUNCTION len() function returns the no of elements present in a list including duplicates. PYTHON LIST BUILT-IN FUNCTIONS : Output count() FUNCTION count() function returns the number of occurrences of an element in a given …
REMOVING DUPLICATES USING PYTHON SET INTRODUCTION We can remove duplicate elements by using python set() operator. REMOVING DUPLICATES IN STRING LIST We can remove duplicates using set() operator in Python. REMOVING DUPLICATES USING PYTHON SET : Output In the above example we can see that the element “Python” was appeared thrice in the list. But …
LIST SORTING OPERATIONS INTRODUCTIONS Python lists can be sorted either in forward or backward direction by using below methods: sort() FUNCTION sort() FUNCTION helps us to sort the list in ascending order. LIST SORTING OPERATIONS : Output LIST SORTING OPERATIONS : Output In the above example we have seen after calling sort() function the list …
STEP SIZE IN PYTHON LIST SLICING INTRODUCTION Step size allows us to put filter on sliced data. POSITIVE STEP SIZE IN LIST SLICING Syntax : [start_index : end_index : setp_size] STEP SIZE IN PYTHON LIST SLICING : Output STEP SIZE IN PYTHON LIST SLICING : Output In the above example, we have used the complete …
PYTHON LIST SLICING OPERATION INTRODUCTION Before understanding slicing operation lets look at some list accessing methods by using index values. PYTHON LIST SLICING OPERATION : Output In the above example, we have used positive index as well as negative index. Negative index will be counted from the end of the list. In the above case, …
REMOVING ELEMENT IN THE LISTS INTRODUCTION There are three methods available in Python for removing elements in the list. remove() METHOD REMOVING ELEMENT IN THE LISTS : Output In the above example, element 600 has been removed from index position 2. After removal of 600 next element 100 is now at index position 2. REMOVING …
UPDATING PYTHON LISTS INTRODUCTIONS UPDATING INTEGER LISTS To update an element in the list we will assign a new element in a given index position. UPDATING PYTHON LISTS : Output UPDATING STRING LISTS In the above example, we have updated the list at index position 2 and 5. Earlier 600 was at index position 2 …
ADDING NEW ELEMENTS IN THE LISTS INTRODUCTION Python has provided us a group of built-in methods for List manipulation. Below are the methods for adding new elements in the list. append() method append() method is used to add a new element in the list. By using append() method we can add only one record at …