GenAI Developer: Week 1 — Day 1

Getting Started with python basics is essential for this course especially if you are a beginner. Install Jupyter Notebook and get started!

Python Basics — Data Types & Variables

# Variables, data types (int, float, string, list, dict, etc.)
name = "John" #String
age = 25 #Int
is_student = True #Boolean
grades = [85, 90, 88] #List
student_info = {"name": "John", "age": 25, "grades": grades} #Dict

Control Flow — Conditional Statements

# A simple if-else statement to check if the person is minor or major
if (age > 18):
    print("Major")
else:
    print("Minor")

Control Flow — Loops

# For Loop to print the grades from list
for grade in grades:
    print(grade)

# While loop for checking the age of and print the statement
while age < 30:
    print("Still in 20s!")
    age += 1

Functions

# Simple function to calculate the average.
def calculate_avg_sum(numbers):
    return sum(numbers)/len(numbers)

print(calculate_avg_sum([20,20,20]))

File Handling — Read and Write Files

Read more about python open function here.

#writing to a file
# open has 4 modes w - write, r - read, a - append, x - create
with open("new.txt", "w") as file:
    file.write("Hello World!")

#reading a file
with open("new.txt", "r") as file:
    print(file.read())

Practice Task — 1

# Task 1: Sum, Average, Max, Min
# Write a Python script that takes a list of numbers.
# Prints their sum, average, maximum, and minimum.

def analyze_numbers(numbers):
    total = sum(numbers)
    average = total / len(numbers)
    maxNum = max(numbers)
    minNum = min(numbers)
    return total, average, maxNum, minNum

print(analyze_numbers([ 10, 20, 30 ]))

Practice Task — 2

# Task 2: Word Counter
# Write a script that reads a text file.
# Counts the number of words.
# Writes the word count to a new file.

def count_words(input_file, output_file):
    with open(input_file, "r") as file:
        content = file.read()
        words = len(content.split())
        
    with open(output_file, "w") as file:
        file.write(f"Word count: {words}")

count_words("new.txt", "count.txt")

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