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Introduction to Python Programming - I

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Arnab Chakraborty

Python is a general purpose, high-level programming language created by Guido van Rossum in 1990. It is free and open source, supports structured, functional and object-oriented programming, and runs on Linux, MacOS, Windows and other platforms. Key features include being simple to learn, dynamically typed, platform independent, supporting both procedural and object-oriented paradigms, and having a large standard library and active community. Common applications of Python include web development, scientific computing, education, GUIs, software development, and business applications.

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INTRODUCTION TO PYTHON
About Python  What is it?  Python is a general purpose, high level computer programming language.
About Python  Designed by:  Guido van Rossum
About Python  Developed by:  Python Software Foundation
About Python  Official logo:
About Python  First appeared:  20 February, 1990  Stable release:  3.8.5 on 20 July, 2020  Preview release:  3.9.0 on 11 August, 2020
About Python  Methodology support:  Structured programming  Function oriented programming  Object oriented programming  OS support:  Linux  MacOS  Windows and more
About Python  License:  Python Software Foundation License  File extensions:  .py  .pyi  .pyc and more
Features Of Python  Simple:  English like statement structure.  Developing and understanding program will become easy.  Easy to learn.
Features Of Python  Free and open source:  There is no need to pay for Python software.  Python software source code is also freely accessible  Its source code can be read, modified and use another program by programmers.
Features Of Python  High level language:  Two types of language: low and high level.  Low level languages uses machine code instructions.  High level language uses English word to develop program.  So, Python is a high level language.
Features Of Python  Dynamically typed:  In Python, we need not declare anything.  An object gets its type based on which type of value assign on it.  Type of object will change if we change the type of value.
Features Of Python  Platform independent:  A Python program can run in any OS platform and hardware architecture.  For this, Python is ideal language for networking and internet programming.
Features Of Python  Procedure and object oriented:  In procedure oriented programming we view our problem as a collection of procedure or functions.  In object oriented programming we view our problem as a collection of objects.  Python support both methodology.
Features Of Python  Procedure and object oriented:  In procedure oriented programming we view our problem as a collection of procedure or functions.  In object oriented programming we view our problem as a collection of objects.  Python support both methodology.
Features Of Python  Compiled and interpreted language:  A program code is a source code.  To execute python source code we need following steps 1) Compile the code by Python compiler to create byte code. 2) Interpret the byte code by Python interpreter to create machine code.
Features Of Python  Embeddable:  We can insert Python programs into a C or C++ program.  Several applications developed by Python can be integrated to other program of C, C++, Java, PHP etc.
Features Of Python  Huge library and strong community :  Python has a big library resource for any platform.  Python has strong and supportive world wide community.
Application Of Python  Web & internet development  Scientific & numeric computing  Teaching programming  GUI based desktop application  Software development  Business applications development

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Introduction to Python Programming - I

  • 2. About Python  What is it?  Python is a general purpose, high level computer programming language.
  • 3. About Python  Designed by:  Guido van Rossum
  • 4. About Python  Developed by:  Python Software Foundation
  • 6. About Python  First appeared:  20 February, 1990  Stable release:  3.8.5 on 20 July, 2020  Preview release:  3.9.0 on 11 August, 2020
  • 7. About Python  Methodology support:  Structured programming  Function oriented programming  Object oriented programming  OS support:  Linux  MacOS  Windows and more
  • 8. About Python  License:  Python Software Foundation License  File extensions:  .py  .pyi  .pyc and more
  • 9. Features Of Python  Simple:  English like statement structure.  Developing and understanding program will become easy.  Easy to learn.
  • 10. Features Of Python  Free and open source:  There is no need to pay for Python software.  Python software source code is also freely accessible  Its source code can be read, modified and use another program by programmers.
  • 11. Features Of Python  High level language:  Two types of language: low and high level.  Low level languages uses machine code instructions.  High level language uses English word to develop program.  So, Python is a high level language.
  • 12. Features Of Python  Dynamically typed:  In Python, we need not declare anything.  An object gets its type based on which type of value assign on it.  Type of object will change if we change the type of value.
  • 13. Features Of Python  Platform independent:  A Python program can run in any OS platform and hardware architecture.  For this, Python is ideal language for networking and internet programming.
  • 14. Features Of Python  Procedure and object oriented:  In procedure oriented programming we view our problem as a collection of procedure or functions.  In object oriented programming we view our problem as a collection of objects.  Python support both methodology.
  • 15. Features Of Python  Procedure and object oriented:  In procedure oriented programming we view our problem as a collection of procedure or functions.  In object oriented programming we view our problem as a collection of objects.  Python support both methodology.
  • 16. Features Of Python  Compiled and interpreted language:  A program code is a source code.  To execute python source code we need following steps 1) Compile the code by Python compiler to create byte code. 2) Interpret the byte code by Python interpreter to create machine code.
  • 17. Features Of Python  Embeddable:  We can insert Python programs into a C or C++ program.  Several applications developed by Python can be integrated to other program of C, C++, Java, PHP etc.
  • 18. Features Of Python  Huge library and strong community :  Python has a big library resource for any platform.  Python has strong and supportive world wide community.
  • 19. Application Of Python  Web & internet development  Scientific & numeric computing  Teaching programming  GUI based desktop application  Software development  Business applications development