Software engineering facts, information, and skills tagged as Python

Install specific git commit with pip

Varghese Chacko 1 year, 3 months ago

To install specific git commit with pip,  You can specify commit hash, branch name, tag.

What is @permalink and get_absolute_url in Django?

Varghese Chacko 1 year, 3 months ago

What is @permalink and get_absolute_url in Django? When and why to use it?

How to install Python package from GitHub?

Varghese Chacko 1 year, 3 months ago

How to install Python package from GitHub?

Get the previous months name

Varghese Chacko 1 year, 3 months ago

Often we need to get previous months name in python, especially, when we have to save report from previous month's name. In python its is pretty simple. 

Get month name from month number

Varghese Chacko 1 year, 4 months ago

How can we get the month name from the month number? For instance, if I have 3, I want to return march? Most simple method is to define a function that checks for the number and return name.

Python - Delete item from array by its value

Varghese Chacko 1 year, 4 months ago

Python logoOften we encounter the situation where we need to remove item from array by value. For example, if we have an array [23, 1, 54, 32, 34, 8, 23]. We don't know or we are not sure about the index of the value 32, but we need to delete it. Python array has the built in function remove. For example

Python for engineering your Internet of Things (IoT) Application framework

Varghese Chacko 1 year, 4 months ago

Python logoPython has already gained it's momentum among IoT developers as it offers readability with syntax without compromising on syntax. In today's era, language doesn't really matter any more when it comes to IoT, ease of writing the code efficiently matter. Large number of available open-source libraries and ability to get more things done with fewer lines of code is an added plus. Python's clean syntax and one to one mapping of it's data built-in structure -dict- to JSON are added advantages. If your application works with database or communicates with JSON data, Python is the right choice. Python is the choice of language for Raspberry Pi, one of the most popular micro controllers in the market. The micro Python is another micro controller optimized for using Python. Few of the advantages of using python includes

Python sort list of dict by calculated value

Varghese Chacko 1 year, 4 months ago

We often needto sort a list of dictionaries by calculated value. Python's sorted is very powerful so that it can do literally anything with custom key function Assume that we have a list of 20 students with their name and marks. Wedont have the total of their marksin the list. We want to sort them by rank, ie descending order of total marks.

Python sort array of dictionaries by value in the dictionary

Varghese Chacko 1 year, 4 months ago

One of the cases we face in programming is sorting an array of dictionaries by value in the dictionary. In Python, it is possible to write a one-liner to achive the same. Suppose we have a list of dictwith name and age of students in a class.