Python Code Samples

Matrix transpose using list comprehensions in python

harika | 5 years, 9 months

a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
#Procedure1:--------
transposed = [[row[i] for row in a ] fo

List comprehensions in python basically reduce the loc. Check the difference between two procudures

python matrix list

Connect to mongo db using python and list of databases

kishore_kumar | 5 years, 8 months

import pymongo

client = pymongo.MongoClient("mongodb://localhost:27017")

pymongo python mongodb

PYTHON: To download AWS ELB access log files from S3 bucket based on last modified time

Ramya | 4 years, 9 months

import boto3
import datetime
from datetime import datetime,timedelta,date

Before using this script, you need to set up AWS CLI first as below: ubuntu@ip-172-31-46-2:~$ aws

python boto3 s3

PYTHON: AWS IAM password reset

Ramya | 4 years, 8 months

import boto3
client = boto3.client('iam')
UserName=input("Enter UserName:")

boto3 python

Usage of Operator functions instead of lambda functions

harika | 5 years, 9 months

import functools
import operator
list = [1, 2, 3, 4, 5]

Both lines generates the same result

lambda operator python

fetch all documents from mongo db collection using python

kishore_kumar | 5 years, 8 months

import pymongo

client = pymongo.MongoClient("mongodb://localhost:27017")

pymongo python mongodb

Get current environment variables in python

kishore_kumar | 6 years, 4 months

import os
env = os.environ

python python-os

Python Script to create AWS beanstalk

sandeep | 6 years, 5 months

#!/usr/bin/python
  
import boto

python aws beanstalk

json string to python dictionary using json module

kishore_kumar | 6 years

import json

my_str = '{"1": 4, "4": 2, "5":3 }'

python json

How to connect to PostgreSQL database and display list of tables in python

kishore_kumar | 5 years, 8 months

import psycopg2

conn = psycopg2.connect(host="localhost", database="mydb", user="kishore", passwo

python psycopg2 postgresql

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