π Introduction to Programming with Python
πΉ Software = Instructions for hardware
πΉ Programming = Writing instructions to create software
πΉ Code = The instructions written to build software
πΉ Syntax = The grammar of a programming language
π‘ Why Python? Python is beginner-friendly, powerful, and requires minimal code compared to other languages. Example: Printing "Hello World" is simpler in Python than in Java!
β‘ Compiler vs. Interpreter
πΉ Compiler (C, C++) β Translates entire code at once β Faster execution
πΉ Interpreter (Python, Java) β Executes code line by line β Easier debugging
π₯ Key Concepts
β Source Code = Human-readable instructions
β Processor = The brain of a computer
β Bytecode = Intermediate code generated after compilation
π Pros & Cons
βοΈ Compilers = Faster execution, better security, debugging tools
β Compilers = Slower compilation, catches only syntax/semantic errors
βοΈ Interpreters = Easy debugging, efficient memory usage
β Interpreters = Slower execution
πΉ Software = Instructions for hardware
πΉ Programming = Writing instructions to create software
πΉ Code = The instructions written to build software
πΉ Syntax = The grammar of a programming language
π‘ Why Python? Python is beginner-friendly, powerful, and requires minimal code compared to other languages. Example: Printing "Hello World" is simpler in Python than in Java!
β‘ Compiler vs. Interpreter
πΉ Compiler (C, C++) β Translates entire code at once β Faster execution
πΉ Interpreter (Python, Java) β Executes code line by line β Easier debugging
π₯ Key Concepts
β Source Code = Human-readable instructions
β Processor = The brain of a computer
β Bytecode = Intermediate code generated after compilation
π Pros & Cons
βοΈ Compilers = Faster execution, better security, debugging tools
β Compilers = Slower compilation, catches only syntax/semantic errors
βοΈ Interpreters = Easy debugging, efficient memory usage
β Interpreters = Slower execution
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Python Basics
πΉ Variables = Store data for use in a program
πΉ Operators = Symbols for performing operations (+, -, *, /, %, etc.)
β Conditional Statements β "if-then" logic
πΉ Variables = Store data for use in a program
x = 1πΉ Data Types = Classification of data (Boolean, String, Number)
print(x) # Output: 1
number = 10
if number > 0:
print("The number is true") # Output: true
πΉ Operators = Symbols for performing operations (+, -, *, /, %, etc.)
print(1 + 2) # Output: 3πΉ Control Statements = Manage program execution flow
print(2 - 1) # Output: 1
β Conditional Statements β "if-then" logic
score = 85β Loop Statements β Repeat actions (for, while loops)
if score >= 90:
print("Excellent")
elif score >= 75:
print("Good job")
else:
print("Keep trying")
count = 1πΉ Functions = Reusable blocks of code
while count <= 5:
print(count)
count += 1
def my_function():
print("Hello from a function")
my_function() # Output: Hello from a function
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