4.Week

Password.py

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+"""Write a Python program to check the validity of a password (input from users)
+
+Rules :
+
+At least 1 letter between [a-z] and 1 letter between [A-Z]
+At least 1 number between [0-9].
+At least 1 character from [$#@].
+Minimum length 6 characters.
+Maximum length 16 characters.
+If password is not valid throw ValueError with a proper error message
+for each rule. If the password is valid print a success message. 
+Use some from raise, except, assert, else and finally keywords."""
+
+
+import re
+p= input("Input your password :")
+x = True
+while x:  
+    if (len(p)<6 or len(p)>16):
+        raise ValueError ("Length has to be between 6-16 characters.")
+    elif not re.search("[a-z]",p):
+        raise ValueError('You have to  "$","#","@"')
+    elif not re.search("[0-9]",p):
+        raise ValueError("You should use at least one digit number.")
+    elif not re.search("[A-Z]",p):
+        raise ValueError("A capital letter must be used.")
+    elif not re.search("[$#@]",p):
+        raise ValueError("A symbol must be used.")
+
+    else:
+        print("Valid Password")
+        x=False
+        break
+
+print("\n Your password is : ",p)
+

TheGcd.py

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+"""As a user, I want to use a program which can calculate the greatest common divisor (GCD) of my inputs.
+
+Acceptance Criteria:
+
+Ask user the enter the number of inputs (n).
+Ask user to enter n input numbers one by one.
+Use try/except blocks to verify input entries and warn the user for Nan or non numerical inputs.
+Calculate the greatest common divisor (GCD) of n numbers.
+Use gcd function in module of math."""
+
+
+import math
+def TheGCD():
+  i=0
+
+  n = int(input("Enter number of elements : "))
+  lst=[]
+  if n<0:
+     raise ValueError("Number of elements must be higher than zero") 
+  else:
+     while i<n : 
+
+       try :
+
+         numbers=int(input("Press ↵ after each number : "))
+       except ValueError : 
+         print("Enter valid integer numbers.")
+         a=input(f"Enter Q for quit,\nPress'C' for continue and enter {n-i} numbers to complete :")
+         if a=="Q":
+            break
+         elif a=="C":
+            continue
+
+       else : 
+         lst.append(numbers)
+         i += 1
+  return print(f"TheGCD of {len(lst)} number(s) :",math.gcd(*lst))
+TheGCD()

dice.per.5000.py

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+"""Create an array with 6 elements named dice. Fill this array with the value zero. 
+Generate a random number with a value between 1 and 6 (just like a dice) in a repetition 5000 times.
+
+If the value is 1, increase the element 0 in the array by 1, the same applies to the values 2, 3, 4, 5 and 6. 
+The dice[0] element indicates the number of times value 1 has occurred. 
+Or in general: dice[x-1] indicates the number of times that x has been thrown.
+At the end of the repetition, print the contents of the array as percentages with 2 decimal places. 
+For example; "Percentage of throws of value 3 = 16.28%"""
+
+import random
+dice=[0,0,0,0,0,0] # dices in order, [1,2,3,4,5,6] .we will only add number of rounds
+for i in range(5000):
+  lucky_n = random.randint(1,6) #this generates dice for  current round
+  for n in range (1,7):
+    if lucky_n==n:       #current dice will be added in list of dice(only +1 per round)
+      dice[n-1]+=1       
+Per=[]
+for i in range(6):
+  current=(dice[i]/50) #generates percentages for (1,6) 
+  Per.append(current)  #and add list(Per)
+for i in range(6):
+    print("Percentage of throws of Value  {} :".format(i+1),str(Per[i])+" %")
+

main.py

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+"""Create a Python module called my_dice.py and export the code
+ you wrote in question 2 into a function called rollDice(number).
+
+Changes:
+
+Instead of repetition of 5000 times, makes a repetition of times of given number variable.
+Instead of printing, return the array of percentages.
+Then create a new module called main.py. Gets an input from the user using "Enter repetition number: ". 
+Then call rollDice method with this user input. Lastly, print each probability. E.g. "The probability of 0 is 16.20"""
+
+import my_dice
+
+def dice_p(t):
+  percentages=(my_dice.rollDice(t))
+
+  for i in range(6):
+    print("The probability of {} is {} %".format((i+1),percentages[i]))
+dice_p(t=int(input("Enter repitition number :")))

my_dice.py

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+"""Create a Python module called my_dice.py and export the code 
+you wrote in question 2 into a function called rollDice(number).
+
+Changes:
+
+Instead of repetition of 5000 times, makes a repetition of times of given number variable.
+Instead of printing, return the array of percentages.
+Then create a new module called main.py. Gets an input from the user using "Enter repetition number: ".
+ Then call rollDice method with this user input. Lastly, print each probability. E.g. 
+ "The probability of 0 is 16.20"""
+
+import random
+def rollDice(n):
+     dice=[0,0,0,0,0,0]          # dices in order, [1,2,3,4,5,6] .we will only add number of rounds
+     Per=[]                      #list of percentages
+     for i in range(n):
+         hand = random.randint(1,6)
+         for x in range (1,7):
+            if hand==x:           #current dice will be added in list of dice(only +1 per round)
+              dice[x-1]+=1 
+     for i in range(6):
+         current=(dice[i]*100/n)  #generates percentages for (1,6) in list(dice)
+         Per.append(current)      #and add list(Per)
+
+     return Per