UNIT A LESSON A1

 

Installing Python

 

Unit A Lesson A1

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Course progress review

This is lesson 1 of 8

 

1) Installing Python

2) Creating a virtual environment

3) Installing Flask

4) Configuring Flask

5) Building your first local Flask app

6) Running your first Flask app

7) Understanding web servers

8) Deploying to PythonAnywhere

Unit A Lesson A1

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Lesson outcomes

This lesson prepares you to:

 

• understand what Python is
• download a specific version of Python
• successfully install Python on your computer

 

Unit A Lesson A1

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The Python website describes Python as:

 

"a programming language that lets you work more quickly and integrate your systems more effectively." 

Unit A Lesson A1

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What is Python? According to website.

Python's developers describe it as:

 

"an interpreted, interactive, object-oriented programming language"

 

The next slides will explain the jargon

Unit A Lesson A1

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What is Python? According to developers.

What is Python? Jargon explained.

Interpreted: each time a program is run, the interpreter checks through the code for errors and interprets the instructions into machine readable "bytecode"

 

Interactive: Python offers the possibility of entering a Python statement followed by the return key, with the result printed on screen. This is an advantage for de-bugging and is a natural way of working

 

Object-oriented programming (OOP): A programming language organised around objects rather than actions and data rather than logic - this offers a number of advantages over other programming styles shown on the next slide

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Object oriented programming (OOP) offers several advantages over other programming styles:

1. Objects can easily be reused in other programs
2. To reuse and objects its not necessary to know why it was created.
3. Objects can hide parts of themselves from programmers, protecting their integrity
4. OOP programming process makes for better deign and fewer errors with large programs
5. OOP is easier to modify and maintain, although they demand much initial planning

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What is Python? Its advantages.

Now let's install Python!

Installation of Python

 

Please install the latest version of Python by:

1. Going to https://www.python.org/downloads/

   • download Python V3.xx latest version using the installer

   • choose install now and check add Python to PATH

   • if the software was downloaded only - go to the downloads folder and double click on the python-3xx.exe file to start installation

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Next we will verify that installation was successful

Installation of Python

 

Now test that Python has been successfully installed on your computer by:

1. Open a Windows command prompt  

   • type cmd in the Windows search box and click on the desktop app

   • type Python which should reveal information about the version of Python installed

   • type quit() and press return to close Python

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Lesson review

Having completed Unit A Lesson A1 you should now successfully be able to:

 

• understand what Python is and its advantages
• select a version of Python and install it
• verify that the installation has been successful

 

Unit A Lesson A1

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Now it is your turn

Please click on the link below and take the short quiz before you proceed to Unit A2:  

Unit A Lesson A1

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