ranabhat

# any images you use later, add them here first to create aliases
# I like keeping all my versions at the top
FROM node:14.3-slim as node
FROM php:7.2.1-fpm-slim as php
FROM nginx:1.17 as nginx

# The real base image to start from
FROM ubuntu:focal-20210827 as base

# install apt stuff

ranabhat

import asyncio
loop = asyncio.get_event_loop()

async def hello():
    await asyncio.sleep(3)
    print('Hello!')
    
if __name__ == '__main__':
    loop.run_until_complete(hello())
    

ranabhat

Simple list comprehensions

• Problem

y = [0,1,2,3,4,5,6,7,8,9]
squares = []
for i in  y:
    squares.append(i**2)
print squares

• Formula: [ expression-involving-loop-variableforloop-variableinsequence]

ranabhat

Pyenv Installation

Ubuntu Installation

1. Install build dependencies sudo apt-get install -y make build-essential libssl-dev zlib1g-dev \ libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev \ libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python-openssl
2. Install pyenv curl https://pyenv.run | bash
3. Add following lines to ~/.bashrc

export PYENV_ROOT="$HOME/.pyenv"

ranabhat

Basic Usage

1. Install pipenv pip install pipenv
2. Create a directory say hello where you are going to create your python project.
3. Go inside the directory cd hello
4. Create a virtual env using command pipenv --python 3.7 (Specify which version of python you need)
5. Alternative to 4 enter command pipenv shell. This case pipenv will use whatever default virtualenv finds.

This will create Pipfile and Pipfile.lock

6. Install packages you need, say numpy pipenv install numpy

ranabhat

import requests # importing libraries for working with HTTP requests
import json             

api_url_base = 'https://api.github.com/' # string that starts off every URL in the GitHub API
#response = requests.get(api_url_base)
#print(response.headers)

headers = {'Content-Type': 'application/json',
            'Accept': 'application/vnd.github.v3+json'
            }