Modules & Packages

import math
print(math.sqrt(144))

import math as m
print(m.pi)
print(m.sqrt(81))

from math import sqrt
print(sqrt(100))

import math
print(math.ceil(4.2))
print(math.floor(4.8))

import math
print(math.factorial(5))

import random
number = random.randint(1, 100)
print(number)

import random
colors = ["red", "blue", "green", "yellow"]
print(random.choice(colors))

import random
numbers = [1, 2, 3, 4, 5]
random.shuffle(numbers)
print(numbers)

from datetime import date
print(date.today())

from datetime import date, timedelta
future_date = date.today() + timedelta(days=10)
print(future_date)

from datetime import datetime
print(datetime.now())

import statistics
values = [10, 20, 20, 30, 40]
print(statistics.mean(values))
print(statistics.median(values))

import os
print(os.getcwd())

import os

folder = "reports"

if not os.path.exists(folder):
    os.mkdir(folder)

print("Folder ready")

import sys
print(sys.version)

import sys
print(sys.argv)

# calculator.py
def add(a, b):
    return a + b

def multiply(a, b):
    return a * b

# main.py
import calculator

print(calculator.add(10, 5))
print(calculator.multiply(10, 5))

# calculator.py
def add(a, b):
    return a + b

# main.py
from calculator import add
print(add(7, 8))

def greet():
    print("Hello from the module")

if __name__ == "__main__":
    greet()

# student.py
class Student:
    def __init__(self, name):
        self.name = name

# main.py
from student import Student
s = Student("Ravi")
print(s.name)

# mypackage/calculator.py
def add(a, b):
    return a + b

# main.py
from mypackage.calculator import add
print(add(20, 30))

import sys
for path in sys.path:
    print(path)

try:
    import unknown_module
except ModuleNotFoundError:
    print("Module was not found")

# text_utils.py
def shout(text):
    return text.upper()

def word_count(text):
    return len(text.split())

# main.py
import text_utils
print(text_utils.shout("python"))
print(text_utils.word_count("Python is easy"))

# mypackage/__init__.py
from .calculator import add

# main.py
import mypackage
print(mypackage.add(2, 3))

from pathlib import Path

for file in Path(".").glob("*.py"):
    print(file)

# Run this in a terminal:
# python -m pip install requests

# Then in Python:
import requests
print(requests.__version__)

from pathlib import Path

requirements = Path("requirements.txt")

if requirements.exists():
    print(requirements.read_text())
else:
    print("requirements.txt not found")

# project/
#   main.py
#   utils/
#       __init__.py
#       calculator.py

# utils/calculator.py
def add(a, b):
    return a + b

# main.py
from utils.calculator import add
print(add(100, 250))