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This function takes an iterable object and returns a sorted list. In other words, the sorted() function sorts the elements of a given iterable in a specific order (either ascending or descending) and returns the sorted iterable as a list.

Download the below Source Codes in One python file.

sorted_functionDownload Return Type : <class ‘list’>

vowels=['o','a','e','i','u'] #printing…

This function returns a list of tuples whose elements are members of each iterable object, which are passed into it. In simple words, it takes multiple iterable object and returns a list of tuple containing members of each iterable object.

Download the below Source Codes in One python file.

zip_functionDownload Return Type : <class ‘zip’>

vowels=['a','e','i','o','u'] nonVowel…

This function adds a counter to an iterable and returns it in a form of enumerate object.

Return Type : <class ‘enumerate’>

vowels=['a','e','i','o','u'] #printing return type of an enumerate function print(type(enumerate(vowels)))

output : <class 'enumerate'>

This enumerate object can then be used directly in for loops or be converted into a list() or tuple() respectively.

Syntax :

Python: Mutable Vs Immutable Data Types

In Python, Objects can be categorized using their update model i.e. can objects be changed once created ? Using this concept python has two types of data types.

Mutable

Immutable

CategoryData TypesMutableLists, Dictionaries, SetsImmutableNumbers, Strings, Tuples, Frozensets Immutable :

Objects whose values can not be changed after creation. Example : Numbers, Strings etc. Let’s take an…

Reference Counting/Object Allocation in Python

In this article we will see how python keeps track of objects in memory using a technique called Reference Counting. Before talking about this lets see what a python object is.

Python Object :

Python uses the object model abstraction for data storage. Anything that contains any type of value is an object. Every Python object has three characteristics :

IDENTITY

Unique identifier that…

How to push your first docker image to docker hub

Step 1 : Create a docker hub account

Follow the link to create an account in docker hub. https://hub.docker.com/signup

Step 2 : Create a repository

After creating a docker hub account you can sign in and create a repository. See the below image and click the Create repository button to proceed.

create repository page

You can give your desired repository name.

Name your repository

Build your first docker image

Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Containers allow a developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and deploy it as one package.

In this article we will create a new docker image and build it.

Step 1 : Create a Dockerfile

Lets create a new file with…

Basic Commands in docker

Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Containers allow a developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and deploy it as one package.

In this article we will go through some basic docker commands for a beginner to start with.

1 Run a container

docker run

Get list of Indexes for a table in PostgreSQL via Query

We can use the PostgreSQL internal databases to search for table information, indexes, partitions, permissions etc

The below query will provide you list of indexes for the specified table in the where clause.

select t.relname as table_name, i.relname as index_name, string_agg(a.attname,', ') as index_columns from pg_class t, -- to find entry for the index pg_class i, -- to find the table name for…