Python Programming tutorials with examples

Python is popular because of its easy coding. This English like script is modular and code can be reused. It is an interpreted, object oriented and high level language with dynamic semantic.

Guido van Rossum known as the creator of the Python programming language.

Python is a case-sensitive language

indentation matters

Block of codes are maintained by using same indent. Line of codes within a particular loop or if condition is maintained within the same indent. Nested loops also maintain the similar indenting condition.

Using Editor for Python

You can use Jupyter notebook for your coding in your system or use Google Colab the cloud based platform for your Python code.

Built in Functions

Based on our requirements we can add modules available in Python environment. However there are some basic functionality which are required for execution of standard programs. These basic functions are available as part of the core Python and we don’t have to import / include any additional module to use them.
Built in Functions in Python

operating system interfaces

Interact with operating system by using the os module. Create or manage directory and files and move to different location within the system.
os: operating system interfaces

Python Version

import sys
print(sys.version)

Output ( may change based on installation )

3.7.10 (default, Feb 20 2021, 21:17:23)

Using Command Line interface ( type cmd in search or type cmd in Run box )

python --version

Installed libraries

Display a list of installed libraries available with Python. ( Try it in Colab also. )

%pip freeze

In windows use like this at your command prompt.

C:\Users>python -m pip freeze

Unix MacOS

$ python -m pip freeze

Python Basics

counter()	dict subclass for counting hashable objects
calendar	Calendar Module
comments	Single line or multiline comments
date	Date functions
Docstrings	Documentation of Modules functions methods and class.
functions	User defined function with Parameters handling
File handling	Methods for file handling
Class & Object	Object Oriented Programming in Python
for loop	for loop with break continue and else
generator	creating iterator in python
iterator	iterable object by using iter() in python
math	Math functions
mutable	Mutable and Immutable objects
PDF	Create PDF files with shapes and tables.
random	Generating random integer and float numbers between a range
String	String methods and applications
Sample Codes	Sample codes in python
try catch	Handling error in Python
variable	How to declare and rules
Reserved Words	List of reserved words and how to check
xlsxwriter, openpyxl	Managing Excel file

Learn Python basics through ONLINE classes

BooleanVar()	Tkinter Variable for handling True / False data
IP	IP address and host name in Python
Json	Json methods to manage Json data formatting
tkinter	Python GUI Module module
Turtle	Draw graphics in Python
tuple	Ordered unchangeable items list
Django	Python web framework
Pickle	Pickle or Un-pickle Python objects
Pillow	Python Imageing Library : PIL

Operators

Operators	All Python Operators
in	Membership Operators
is	Identity Operators
Bitwise	Bitwise operators in Python
precedence	Precedence of operators in Python

Database Management using Python

MySQL	Python functions to manage MySQL database
SQLite	Python functions to manage SQLite database

Installing Python

IIS cgi	Python through IIS CGI

Pygsheets
append_table()	Transfer data from CSV or Excel file to Google Sheets
get_as_df()	Create Pandas DataFrame using data from Google Sheets
set_dataframe()	Add data from Pandas DataFrame to Google Sheets
Treeview	Create Tkinter Treeview using data from Google Sheets
Combobox	Options of Tkinter Combobox using data from Google Sheets

Pandas

Python data analysis tool

Numpy

Numpy	scientific computing using Numpy

Pytrends

Pythrends	Un offical google API to get data from Google Trends

online class	Join our online class through google meet

By using BeautifulSoup we can parse HTML or XML documents and get the required tags or contents

tensorflow	tensorflow basics
matplotlib	matplotlib library to draw graphs
BeautifulSoup	matplotlib library to draw graphs

CBSE Python

High School Python ( part of Syllabus)
CBSE Python syllabus with link to solutions are here.

plus2net.com

Subscribe to our YouTube Channel here

	29-07-2022
-2 I have created small hotel management system using Python and Sqlite3. Before I convert it to Python exe, everything is fine. Whenever I close the program and reopen it again, I see everything I inserted into it. But when I convert it to Python exe using Pyinstaller, an error arises. Everything I inserted into my Python exe file gets lost when I close the app and reopen it. Please I appreciate your help.

	05-08-2022
The supporting files should be created in one directory. Try to keep all supporting files in one location and then create the .exe

Python programming tutorials