Week 3 assignment

Dict Sorting W Lambda.py

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+#Python program to sort a list of dictionaries using Lambda
+ldict = [{'make': 'Nokia', 'model': 216, 'color': 'Black'}, {'make': 'Mi Max', 'model': '2', 'color': 'Gold'}, {'make': 'Samsung', 'model': 7, 'color': 'Blue'}]
+a = sorted(ldict, key=lambda x:x['color'])
+print(f"\n {a} \n")

Filter w Lambda.py

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+# Python program to filter a list of integers using Lambda
+lint = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+
+even = lambda x: x%2==0
+odd = lambda x: x%2==1
+
+print("Even numbers of the list:", list(filter(even,lint)))
+print("Odd numbers of the list:", list(filter(odd,lint)))

Pascal Triangle.py

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+n = int(input('Line amount of Pascal Triangle to be printed: '))
+triangle = [] 
+for r in range(n):
+    row = [1]*(r+1)
+    if r>1:            # exclude first 2 rows from repetetive task below 
+        for c in range(1,r):
+            row[c] = triangle[r-1][c-1]+triangle[r-1][c]  
+    triangle.append(row)    
+    print("   ".join( repr(e) for e in triangle[r] ).center(5*n))   

Password Generator.py

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+import random as rnd
+from string import punctuation
+
+# size variables of each character groups and total length
+pass_lenght = int(input('\nPasword length: '))
+nlower = int(input('Number of Lowercase characters: '))
+nUpper = int(input('Number of Uppercase characters: '))
+nspec_chars = int(input('Number of special characters: '))
+nint = pass_lenght - nlower - nUpper - nspec_chars
+#
+pchar_list=[]
+
+def pick_lowercase(l):
+    # function returns required amount of lowercase letter characters
+    lower_chars = list(map(chr, range(97, 123)))
+    return [rnd.choice(lower_chars) for i in range(l)]
+
+def pick_uppercase(u):
+    # function returns required amount of uppercase letter characters
+    upper_chars = list(map(chr, range(65, 91)))
+    return [rnd.choice(upper_chars) for i in range(u)]
+
+def spec_chars(s):
+    # function returns required amount of special characters
+    spec_chars = list(set(punctuation))
+    return [rnd.choice(spec_chars) for i in range(s)]
+
+int_chars = [str(rnd.randint(0, 9)) for i in range(nint)]
+
+
+pchar_list = pick_lowercase(nlower) + pick_uppercase(nUpper) + spec_chars(nspec_chars) + int_chars
+rnd.shuffle(pchar_list)
+
+password = ''.join(pchar_list)
+print(f"\nPassword: {password}\n")

Perfect Number.py

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+def isPerfect(n):
+    if sum([i for i in range(1,n) if n % i == 0]) == n:
+        return True
+
+n = int(input('Number to be checked if it is perfect: '))
+if isPerfect(n):
+    print(f"{n} is a perfect number")
+else:
+    print(f"{n} is not a perfect number")    
+
+
+

Word sorting.py

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+# program to sort hyphen-separated text in words alphabetically.
+txt = input('Hyphen delimited text: ')
+delimiter = '-'
+
+def sortspecial(txt, sep):
+    return sep.join(sorted(list(txt.split(sep))))
+
+print(sortspecial(txt, delimiter))  #print sorted hyphen delimited txt