Home work Week 3

answ_1.py

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+## Assignment 1
+
+# Write a Python function that prints out the first n rows of Pascal's triangle.
+
+N=int(input("Insert number of rows in Pascal's triangle "))
+P=[]
+
+for i in range (N):
+    row = [1]*(i+1) #this is first 1
+    for j in range (i+1):
+        if j!=0 and j!=i: # if itis not first and last position, then we make a calculation 
+            row[j]=P[i-1][j-1] + P[i-1][j] #calculation acording to the formula
+    P.append(row) # make a list with nested lists
+
+for r in P:
+  print(r) #print every list from new line
+
+

answ_2.py

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+## Assignment 2
+
+# Write a Python program that accepts a hyphen-separated sequence of words as input and prints the words in a hyphen-separated sequence after sorting them alphabetically.
+
+# Sample Items : green-red-yellow-black-white
+# Expected Result : black-green-red-white-yellow
+
+
+my_str=input('Insert a hyphen-separated sequence of words,please!')
+my_list=my_str.split ("-") #making a list
+my_list_sort=sorted(my_list) #making sorted list
+my_str_sort='-'.join(my_list_sort) #making sorted string
+print("After sorting alphabetically it is look like so:", my_str_sort) #output result

answ_3.py

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+## Assignment 3
+
+#Write a Python function to check whether a number is perfect or not.
+
+
+def perf_check(num):
+    """function to check whether a number is perfect or not"""
+    sum_d=0
+    for i in range (1,num):
+       if num%i==0: 
+        sum_d +=i
+    if sum_d==num:
+         return("Perfect")
+    else:
+         return("Not perfect")
+
+
+num=int(input(("Insert a number - ")))#call the function with integer input
+print(perf_check(num))

answ_4.py

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+import random
+import string
+
+print('Password generator')  #name of programm
+len = int(input('Insert password length')) #input length
+u_case=string.ascii_uppercase #upper case letter
+l_case=string.ascii_lowercase #lower case letter
+char=string.punctuation # character
+numb=string.digits #numbers 0-9
+rand_list=l_case+u_case+char+numb #all together
+password=''.join(random.sample(rand_list,len))# generate the random password
+print('Password -',password)
+
+
+

bonus_1.py

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+### Bonus 1
+
+# Write a Python program to sort a list of dictionaries using Lambda.
+# Original list of dictionaries :
+# [{'make': 'Nokia', 'model': 216, 'color': 'Black'}, {'make': 'Mi Max', 'model': '2', 'color': 'Gold'}, {'make': 'Samsung', 'model': 7, 'color': 'Blue'}]
+
+# Sorting the List of dictionaries :
+# [{'make': 'Nokia', 'model': 216, 'color': 'Black'}, {'make': 'Samsung', 'model': 7, 'color': 'Blue'}, {'make': 'Mi Max', 'model': '2', 'color': 'Gold'}]
+
+original  = [{'make': 'Nokia', 'model': 216, 'color': 'Black'}, {'make': 'Mi Max', 'model': '2', 'color': 'Gold'}, {'make': 'Samsung', 'model': 7, 'color': 'Blue'}]
+original.sort(key=lambda x:x['color'])
+print(original)
+

bonus_2.py

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+### Bonus 2
+
+# Write a Python program to filter a list of integers using Lambda.
+
+# Original list of integers:
+# [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+
+# Even numbers from the said list:
+# [2, 4, 6, 8, 10]
+
+# Odd numbers from the said list:
+# [1, 3, 5, 7, 9]
+
+my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+
+even_list = list(filter(lambda x: (x%2 == 0) , my_list))# Even numbers from the list
+
+print(even_list)
+
+odd_list= list(filter(lambda x: (x%2 == 1), my_list)) # Odd numbers from the list
+
+print(odd_list)