Lecture on Python Syntax and Basics

Introduction

• بسم الله الرحمن الرحيم والصلاة والسلام على سيدنا محمد
• Learn syntax (البنية) of Python
• Create a simple “Hello Python” application

Command Line Usage

• Use command line often; it will be very helpful
• Navigate to project directory (e.g., Documents)
• Create a new folder using mkdir Python
• Create a new file using touch first.py
• Open files with Notepad or Visual Studio Code

Visual Studio Code Tips

• Install Python extensions when prompted
• Use the integrated terminal (New Terminal | Add New Terminal)
• The Run Python File in Terminal button runs Python scripts directly

First Python Function

• print(“I love Python”)
  • print is a built-in function in Python
  • Used to print output to the screen
• Save file and run script using python first.py in command line or VS Code terminal

Semicolon Usage

• Python typically doesn’t use semicolons
• Semicolons needed when combining multiple statements on one line
  • Example: print(“I love Python”); print(“I love programming”)
• VS Code formatter might reorganize based on settings (format on save)

Syntax: Indentation

• Critical in Python, indicates blocks of code
• Example with if statement: if true: print(“Hello, Osama”)
• Proper indentation required, otherwise syntax errors will occur
• All statements under the same block should maintain the same indentation level

Debugging and Errors

• Common to forget indentations; can lead to unexpected indent block errors
• VS Code helps identify incorrect indentations

Conclusion

• Recap of print function and basic indentation rules
• Encouragement to practice and learn through continuous coding
• Preview of upcoming lessons

End of Lesson السلام عليكم