Environment Setup
Installation
pip install virtualenvCreation
python -m venv envActivation
.\env\Scripts\activateDeactivation
deactivateExtra Notes
Way 01
def prime_checker(number):
for i in range(2,number):
if number%i==0:
print("It's not a prime number.")
break
else:
print("It's a prime number.")Way 02
def prime_checker2(number2):
is_prime=True
for i in range(2,number2):
if number2%i==0:
is_prime=False
if is_prime:
print("It's a prime number.")
else:
print("It's not a prime number.")
prime_checker2(87)Checking multiple prime number
def prime_checkers(number2):
is_prime=True
for i in range(2,number2):
if number2%i==0:
is_prime=False
if is_prime:
print(number2)
for i in range(2,1001):
prime_checkers(i)Current time
import datetime
current_date_and_time = datetime.datetime.now()
print(current_date_and_time)
# OUTPUT
# 2020-03-27 19:01:31.340242Future time calculation
hours_added = datetime.timedelta(hours = 9,minutes=40)
future_date_and_time = current_date_and_time + hours_added
print(future_date_and_time)
# OUTPUT
# 2020-03-28 00:01:31.340242Time subtraction
from datetime import datetime
past_date = '28/02/22 13:27:19'
past_date = datetime.strptime(past_date, '%d/%m/%y %H:%M:%S')
current_date = '13/03/22 18:06:19'
current_date = datetime.strptime(current_date, '%d/%m/%y %H:%M:%S')
print (current_date-past_date)
# Feb 28, 2022, 1:27 PM01 Write a program that prints the next 20 leap years starting from the leap year closest to what the user enters
year = int(input("Enter a year:"))
for yr in range (year,year+80):
if yr%400==0:
print("Leap Year.")
elif yr%100==0:
print("Not Leap Year.")
elif yr%4==0:
print("Leap Year.")
else:
print("Not leap year.")# Function to calculate parameters of Basic COCOMO
def calculate(table ,mode ,size):
effort = 0
time = 0
staff = 0
model = 0
# Check the mode according to size
if(size >= 2 and size <= 50):
model = 0
elif(size > 50 and size <= 300):
model = 1
elif(size > 300):
model = 2
print(f"The mode is {mode[model]}")
# Calculate Effort
effort = table[model][0]*pow(size, table[model][1])
# Calculate Time
time = table[model][2]*pow(effort, table[model][3])
#Calculate Persons Required
staff = (effort/time)
# Output the values calculated
print(f"Effort = {round(effort,3)} Person-Month")
print(f"Development Time = {round(time,3)} Months")
print(f"Average Staff Required = {round(staff)} Persons")
table = [[2.4,1.05,2.5,0.38],[3.0,1.12,2.5,0.35],[3.6,1.20,2.5,0.32]]
mode = ["Organic","Semi-Detached","Embedded"]
size = int(input("Enter KLOC Size:"))
calculate(table, mode, size)list_name = ["hello","world"]
# print list as a normal string:
print(f"{' '.join(list_name)}")
import os
os.system("cls")alphabet=['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
word_or="cay"
word=list(word_or)
# print(word)
# x=alphabet.index('c')
# print(x)
shift=5
encrypt_word=""
for i in range(len(word)):
word_by_word=word[i]
encrypt_letter=alphabet.index(word_by_word)+shift
# print(encrypt_letter)
if encrypt_letter>=26:
# fixing index error
index_sol=encrypt_letter-len(alphabet)
encrypt_word+=alphabet[index_sol]
else:
encrypt_word+=alphabet[encrypt_letter]
print(f"original word is: {word_or}")
print(f"encrypted word is: {encrypt_word}")# rerun the program using function:
def main():
num=int(input("enter a number:"))
print(f"Your entered number is {num}.")
restart=input("Enter number again? 'yes' or 'no'").lower()
if restart=="yes":
main()
else:
exit()
main()
# rerun the program using condition 'while':
is_restart=True
while is_restart:
num=int(input("enter a number:"))
print(f"Your entered number is {num}.")
restart=input("Enter number again? 'yes' or 'no'").lower()
if restart=="no":
is_restart=False# day 10 104 learning on calculator recursion
def calculator():
# Add
def add(n1, n2):
return n1+n2
operations = {
'+': add,
}
num1 = int(input("What's the first number:"))
for symbol in operations:
print(symbol)
should_continue = True
while should_continue:
operation_symbol = input("Pick an operation: ")
num2 = int(input("What's the next number:"))
calculate = operations[operation_symbol]
answer = calculate(num1, num2)
print(f'{num1} {operation_symbol} {num2} = {answer}')
choice = input(
f"Type 'y' to continue with {answer} or type 'n' to start new calculation.")
if choice == 'y':
num1 = answer
else:
should_continue = False
calculator() # recursion
calculator()# from day 11: 109
import random
def deal_card():
cards = [11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10]
card = random.choice(cards)
return card
x=deal_card()
print(x)Way 01
# from day 12 : 117
enemies = 1
def increase_enemies():
global enemies
enemies+=1
print(f'enemies inside function: {enemies}')
increase_enemies()
print(f'enemies outside function: {enemies}')Way 02
foe = 1
def increase_enemies():
return foe+1
foe = increase_enemies()
print(f'enemies outside function: {enemies}')# note from day 14:
import random
data = [1,2,4,5] # eample data ..main data is in list of key values
acc_a = random.choice(data)
acc_b = random.choice(data)
if acc_a == acc_b:
acc_b = random.choice(data)
#format the data
def format_data(acc):
acc_name = acc['name']
acc_des = acc['description']
acc_country = acc['country']
return f'{acc_name}, a {acc_des}, from {acc_country}'
print(f'Compare A: {format_data(acc_a)}')
print(acc_a['follower_count'])
print('vs')
print(f'Compare B: {format_data(acc_b)}')
print(acc_b['follower_count'])