Initial commit

Author: wanjalajoel

__pycache__/utility.cpython-310.pyc

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+import numpy as np
+import pandas as pd
+
+# Conditional Statements
+# check for age category
+age = 18
+if age < 18:
+   print("You are a minor")
+elif age == 18:  
+   print("You just became an adult")
+else:
+   print("You are an adult")
+
+# For Loops
+# Loop through a range of numbers
+for i in range(1,6):
+    print(f"Number: {i}")
+
+fruits = ["Aples", "orange", "tomato", "mango"]
+for fruit in fruits:
+   print(f"I like {fruit}.")
+
+# While Loops
+# Countdown example
+count = 5
+while count > 0:
+   print(f"Countdown: {count}")
+   count -= 1
+print("liftoff!")
+
+# Using break and continue
+# Break out of a loop
+for num in range(10):
+    if num == 5:
+        print("Found 5, stopping loop.")
+        break
+    print(f"Number: {num}")
+
+# Skip iteration with continue
+for num in range(10):
+    if num % 2 == 0:  # Skip even numbers
+        continue
+    print(f"Odd Number: {num}")
+
+# Looping Through Strings
+# Print each character of a string
+name = "Python"
+for char in name:
+    print(char)
+

controlflowstatements.py

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+import numpy as np
+import pandas as pd
+# Declaring Variables
+age = 30 # integer
+name = "Wanjala" # character
+height = 5.9 # float
+is_student = True # Boolean
+print("Age:", age) 
+print("Name:", name)
+print("Height:", height) 
+print("Is_student:", is_student)
+
+# Check data types
+print("Type of Age:", type(age))
+print("Type of Name:", type(name))
+print("Type of Height:", type(height)) 
+print("Tpye of Is_student:", type(is_student))
+
+age_str = str(age)
+height_int = int(height)
+is_student_int = int(is_student)
+
+print("Age as string:", age_str)
+print("Height as integer:", height_int)
+print("Is_student as integer:", is_student_int)
+
+# String manipulation
+
+# string contenation
+full_name = name + "Joel"
+print("Full Name:", full_name)
+
+# String formatting
+introduction = f"My name is {name}, I am {age} years old."
+print(introduction)
+
+# String methods
+print("Upper Case Name:", name.upper())
+print("Name length:", len(name))
+
+# Arithmetic operations
+x = 999
+y = 455
+
+print("Addition:", x + y)
+print("Subtraction:", x - y)
+print("Multiplication:"(), x * y)
+print("Division:", x / y)
+print("Floor Division:", x + y)
+print("Modulus:", x % y)
+print("Exponentiation:", x ** y)

datatypes.py

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+# Reading a file
+import pandas as pd
+df = pd.read_csv("OptionPrices.csv")
+print(df.head(5))

file-handling.py

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+import numpy as np
+import pandas as pd
+# 1. Defining and Calling a Function
+# Define a function
+def greet():
+       print("Hello, welcome to Python programming!")
+
+# Call the function
+greet()
+   
+# 2. Function with Parameters and Return Values
+# Function to add two numbers
+def add_numbers(a, b):
+       return a + b
+
+# Call the function
+result = add_numbers(5, 10)
+print("Sum:", result)
+
+## 3. Function with Default Arguments
+# Function with a default argument
+def introduce(name, age=18):
+       print(f"My name is {name} and I am {age} years old.")
+
+# Call the function
+introduce("Alice")
+introduce("Bob", 25)
+
+# 4. Using args for Variable-Length Arguments
+# Function to calculate the sum of multiple numbers
+def calculate_sum(*args):
+       return sum(args)
+
+# Call the function
+print("Sum:", calculate_sum(1, 2, 3, 4, 5))
+
+## 5. Using kwargs for Keyword Arguments
+# Function to print user details
+def display_info(**kwargs):
+       for key, value in kwargs.items():
+           print(f"{key}: {value}")
+
+# Call the function
+display_info(name="Alice", age=30, city="Nairobi")
+  

functions.py

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+import numpy as np
+import pandas as pd
+print("Hello, world!")
+
+# Data types and fariables
+age = 30 # integer
+print("Age:", age)
+name = "Wanjala" # character
+print("Name:", name)
+height = 5.9 # float
+print("Height:", height)
+is_student = True
+print("Is_Student:", is_student)
+
+age_str = str(age)
+print("Age as string:", age_str)
+height_int = int(height)
+print("Height as string:", height_int)
+is_student_int = int(is_student)
+print("Is_student as string:", is_student_int)
+
+full_name = name + "Joel"
+print("Full Name:", full_name)
+
+introduction = f"My name is {name}, I am {age} years old."
+print(introduction)
+
+print("Upper case:", name.upper())
+print("Length of Name:", len(name))
+
+# Arithmetic operations
+x = 10
+y = 3
+
+print("Addition:", x + y)
+print("Subtraction:", x - y)
+print("Multiplication:", x * y)
+print("Difision:", x / y)
+print("Floor difision:", x + y)
+print("Modulus:", x % y)
+print("Exponentiation:", x ** y)
+
+if age < 30:
+    print("You are now a minor")
+elif age == 30:
+    print("You are now an adult")
+else:
+    print("You are an adult")
+
+for i in range(1,6):
+    print(f"Number: {i}")
+
+fruits = ["apple", "banana", "mango", "orange"]
+for fruit in fruits:
+    print(f"I like {fruit}")
+
+count = 5
+while count > 5:
+    print(f"countdown: {count}")
+    count -= 1
+print("liftoff!")
+
+for num in range(10):
+    if num == 5:
+        print("Found 5: Stop looping")
+        break
+    print(f"Number: {num}")
+
+for num in range(10):
+    if num % 2 == 0:
+       continue
+    print(f"Odd Numbers: {num}") 
+
+for char in name:
+    print(char)
+
+def greeting():
+    print("Hello, world")
+greeting()
+
+def add_numbers(a,b):
+    return a + b
+result = add_numbers(589738986282625,7899425288736)
+print("sum:", result)
+
+def introduce(name, age = 30):
+    print(f"My name is {name} and I am {age} years old.")
+
+introduce("Wanjala")
+introduce("Bob", 25)

main.py

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+# Using math library
+import math
+print("Square root of 999:", math.sqrt(999))
+print("Falue of:", math.pi)
+print("Sine of 269:", math.sin(math.radians(269)))
+
+# Using the datetime library
+from datetime import datetime
+now = datetime.now()
+print("Current Date and Time:", now)
+
+formatted_date = now.strftime("%Y-%m-%d %H:%M:%S")
+print("Formatted Date:", formatted_date)
+
+# Using random library
+import random
+print("Random number between 1 and 10:", random.randint(1,10))
+fruits = ["apple", "banana", "cherry"]
+print("Random fruit:", random.choice(fruits))
+
+random.shuffle(fruits)
+print("Shuffled fruits:", fruits)
+
+# importing a custom module
+import utility
+print(utility.greet_user("Joel"))
+print("Square of 5:", utility.square_number(5))

modules-libraries.py

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+# Defining a class and creating an object
+class Animal:
+    def __init__(self, name, species):
+        self.name = name
+        self.species = species
+
+    def describe(self):
+        print(f"{self.name} is a {self.species}.")
+
+dog = Animal("Buddy", "dog")
+dog.describe()
+
+# Instance fs. class attributes
+class circle:
+    pi = 3.14159
+    def __init__(self, radius):
+        self.radius =radius
+
+    def area(self):
+        return circle.pi * self.radius ** 2
+    
+circle1 = circle(5)
+print("Area of circle:", circle1.area())
+
+# Inheritance
+class fehicle:
+    def __init__(self, brand, wheels):
+        self.brand = brand
+        self.wheels = wheels
+
+    def describe(self):
+        print(f"This is a {self.brand} fehicle with {self.wheels} wheels.")
+
+class car(fehicle):
+    def __init__(self, brand, wheels, doors):
+        super().__init__(brand, wheels)
+        self.doors = doors
+
+    def describe(self):
+        super().describe()
+        print(f"It has {self.doors} doors.")
+
+my_car = car("Toyota", 4, 4)
+my_car.describe()
+
+# Encapsulation
+class bankaccount:
+    def __init__(self, owner, balance):
+        self.owner = owner
+        self.__balance = balance
+
+    def deposit(self, amount):
+        if amount > 0:
+            self.__balance += amount
+            print(f"Deposited {amount}. New balance: {self.__balance}")
+ 
+    def withdraw(self, amount):
+        if amount > 0 and amount <= self.__balance:
+            self.__balance -= amount
+            print(f"Withdraw {amount}. New balance: {self.__balance}")
+        else:
+            print(f"Insufficient funds or infalid amount.")
+
+    def get_balance(self):
+        return self.__balance
+
+account = bankaccount("Joel", 1000)
+account.deposit(500)
+account.withdraw(300)
+print("Final Balance:", account.get_balance())

oop.py

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+# creating module
+def greet_user(name):
+    return f"Hello, {name}! Welcome to the module example."
+
+def square_number(num):
+    return num ** 2