After installing python and Jupyter Notebook, now start your Jupyter notebook from the terminal which runs in port 8888 in the localhost. Now lets start with python programming.

Import Libraries

import os
import pandas as pd
import numpy as np
import matplotlib as mlt

Set working Directory

We have to call inbuilt functions using the libraries
import os
os.chdir(“/Users/mac/Desktop/new/Python”) /Set Dir
os.getcwd() - Get current working Dir

Screenshot for above commands

Note:- Shift+Enter to run your commands When i tried to import pandas library, i got an error “ No modules named pandas” Which i fixed by installing pandas under bin, before importing it, and below is the command.
pip install pandas //Installing pandas

Using operators- Basics

Python Math-Calculations

Some math calculations using library called math.

Defining function and calling the function

It is same like other programming languages, only few syntax gets varied. But its very easy to learn. Check some basic easy defining and calling functions. Used int, and str as passing parameters. You can use any variables, using the same syntax.

There are more and more basic commands , From next post, we will start to learn commands related to DataScience like loading csv, excel files and read/write files.