Itertools library learnt

Author: ahmedfahad04

Cryptography/caeser.py

@@ -0,0 +1,20 @@
+data = "istiaq ahmed fahad"
+
+encript = ""
+
+for i in range(len(data)):
+    x = (ord(data[i]) - 97 + 1) % 26
+    x = chr(x+97)
+    encript += x
+
+print("Actual Text: ", data)
+print("Encripted Text: ", encript)
+
+decript = ""
+
+for i in range(len(encript)):
+    x = (ord(encript[i])+97-1) % 26
+    x = chr(x+97)
+    decript += x
+
+print("Decripted Text: ", decript)

Exercise/HackerRank/regex_substitution.py

@@ -0,0 +1,14 @@
+import re
+
+n = int(input())
+lines = []
+
+for i in range(n):
+    s = input()
+    lines.append(s)
+    
+for line in lines:
+    k = re.sub(r'( && )+', ' and ', line)
+    k = re.sub(' ?\|\| ', ' or ', k)
+    print(k)
+    

Miscellaneous Topics/lib_itertools.py

@@ -0,0 +1,70 @@
+from itertools import product
+
+### Certain Products =====================================
+
+# a = [[1,2,3],[4,5,6]]
+# print(list(product(*a)))
+# b = [1,2,3]
+# print(list(product(b, repeat = 2)))
+
+# Task1: finding certesian products
+# a = input().split(" ")
+# b = input().split(" ")
+
+# a = [int(i) for i in a]
+# b = [int(i) for i in b]
+
+# ans = list(product(a,b))
+
+# for i in ans:
+#     print(i, end = " ")
+
+### Permutations =====================================
+
+# a = [1,2,3]
+# print(list(permutations(a)))
+# print(list(permutations(a, 2)))
+# print(permutations(a))
+# b = 'fahad'
+# print(list(permutations(b, 2)))
+
+
+# from itertools import permutations
+
+# a = input().split(" ")
+
+# a[0] = [i for i in a[0]]
+# a[1] = int(a[1])
+
+# ans = list(permutations(a[0], a[1]))
+# ans = sorted(ans)
+
+# for i in ans:
+#     x = str.join("", i)
+#     print(x)
+
+### Combinations =====================================
+
+from itertools import combinations, permutations
+
+# a = [1,2,3,4]
+# print(list(combinations(a, 3)))
+# b = 'fahad'
+# print(list(combinations(b, 2)))
+# print(list(permutations(b, 2)))
+
+a = input().split(" ")
+
+a[0] = [i for i in a[0]]
+a[1] = int(a[1])
+
+turn = a[1]
+for j in range(1, turn+1):
+        
+    ans = list(combinations(a[0], j))
+    ans = [sorted(i) for i in ans]
+    ans = sorted(ans)
+
+    for i in ans:
+        x = str.join("", i)
+        print(x)

Python Fundamentals/lib_itertools.py

@@ -0,0 +1,91 @@
+from itertools import product
+
+### Certain Products =====================================
+
+# a = [[1,2,3],[4,5,6]]
+# print(list(product(*a)))
+# b = [1,2,3]
+# print(list(product(b, repeat = 2)))
+
+# Task1: finding certesian products
+# a = input().split(" ")
+# b = input().split(" ")
+
+# a = [int(i) for i in a]
+# b = [int(i) for i in b]
+
+# ans = list(product(a,b))
+
+# for i in ans:
+#     print(i, end = " ")
+
+### Permutations =====================================
+
+# a = [1,2,3]
+# print(list(permutations(a)))
+# print(list(permutations(a, 2)))
+# print(permutations(a))
+# b = 'fahad'
+# print(list(permutations(b, 2)))
+
+## Your task is to print all possible permutation of the string in lexicographic sorted order.
+
+# from itertools import permutations
+
+# a = input().split(" ")
+
+# a[0] = [i for i in a[0]]
+# a[1] = int(a[1])
+
+# ans = list(permutations(a[0], a[1]))
+# ans = sorted(ans)
+
+# for i in ans:
+#     x = str.join("", i)
+#     print(x)
+
+### Combinations =====================================
+
+# from itertools import combinations
+
+# a = [1,2,3,4]
+# print(list(combinations(a, 3)))
+# b = 'fahad'
+# print(list(combinations(b, 2)))
+# print(list(permutations(b, 2)))
+
+## Your task is to print all possible size replacement combinations of the string in lexicographic sorted order.
+# a = input().split(" ")
+
+# a[0] = [i for i in a[0]]
+# a[1] = int(a[1])
+
+# turn = a[1]
+# for j in range(1, turn+1):
+        
+#     ans = list(combinations(a[0], j))
+#     ans = [sorted(i) for i in ans]
+#     ans = sorted(ans)
+
+#     for i in ans:
+#         x = str.join("", i)
+#         print(x)
+
+### Combinations with replacement =====================================
+
+from itertools import combinations_with_replacement
+
+# a = [1,2,7,3,4]
+# print(list(combinations_with_replacement(sorted(a), 3)))
+
+## Your task is to print all possible size replacement combinations of the string in lexicographic sorted order.
+a = input().split(" ")
+
+a[0] = [i for i in a[0]]
+a[1] = int(a[1])
+
+ans = list(combinations_with_replacement(sorted(a[0]), a[1]))
+
+for i in ans:
+    x = str.join("", i)
+    print(x)

Python Fundamentals/regex.py

@@ -58,4 +58,3 @@
 
 y = agentNamesRegex.sub(r'\1*****', 'Agent Alice told Agent Carol that Agent Eve knew Agent Bob was a double agent.')
 print(y)
-

Python Socket Programming/.idea/vcs.xml

@@ -11,16 +11,22 @@ def echo_client(port):
     sock.connect(server_address)
 
     try:
-        message = "Test message that will be echoed"
+
+        # data -----
+        f = open("a.txt", "r")
+        message = f.read()
+
+        # data -----
+        # message = "Test message that will be echoed"
         print("[Client] Send:", message)
-        sock.sendall(message.encode('utf-8'))  # WRITING
+        sock.sendall(message.encode('utf-8'))  # *** WRITING ***
 
         data_received = 0
         data_expected = len(message)
         content = ''
 
         while data_received < data_expected:
-            data = sock.recv(16)  # READING
+            data = sock.recv(16)  # *** READING ***
             data_received += len(data)
             content += data.decode('utf-8')
             # print("[Client] Received:", data.decode('utf-8'))

Python Socket Programming/Book Practice/EchoClient.py

@@ -0,0 +1 @@
+hello world, istiaq ahmed fahad, University of California