Merge branch 'master' of git://github.com/gerroo/Python

Author: harshildarji

Maths/3n+1.py

@@ -0,0 +1,18 @@
+def main():
+    def n31(a):# a = initial number
+        c = 0
+        l = [a]
+        while a != 1:
+            if a % 2 == 0:#if even divide it by 2
+                a = a // 2
+            elif a % 2 == 1:#if odd 3n+1
+                a = 3*a +1
+            c += 1#counter
+            l += [a]
+            print(a)#optional print
+        print("It took {0} steps.".format(c))#optional finish
+        return l , c
+    print(n31(43))
+    
+if __name__ == '__main__':
+    main()

Maths/FindMin.py

@@ -0,0 +1,12 @@
+def main():
+    def findMin(x):
+        minNum = x[0]
+        for i in x:
+            if minNum > i:
+                minNum = i
+            return minNum
+
+    print(findMin([0,1,2,3,4,5,-3,24,-56])) # = -56
+
+if __name__ == '__main__':
+    main()

ciphers/base64_cipher.py

@@ -0,0 +1,11 @@
+import base64
+
+def main():
+    inp = input('->')
+    encoded = inp.encode('utf-8') #encoded the input (we need a bytes like object)
+    b64encoded = base64.b64encode(encoded) #b64encoded the encoded string
+    print(b64encoded)
+    print(base64.b64decode(b64encoded).decode('utf-8'))#decoded it
+
+if __name__ == '__main__':
+    main()

simple_client_server/README.md renamed to simple_client/README.md

@@ -0,0 +1,29 @@
+# client.py
+
+import socket
+
+HOST, PORT = '127.0.0.1', 1400
+
+s = socket.socket(
+
+            socket.AF_INET,     #           ADDRESS FAMILIES
+                                #Name                   Purpose
+                                #AF_UNIX, AF_LOCAL      Local communication
+                                #AF_INET                IPv4 Internet protocols
+                                #AF_INET6               IPv6 Internet protocols
+                                #AF_APPLETALK           Appletalk
+                                #AF_BLUETOOTH           Bluetooth
+
+
+            socket.SOCK_STREAM  #           SOCKET TYPES
+                                #Name           Way of Interaction
+                                #SOCK_STREAM    TCP
+                                #SOCK_DGRAM     UDP
+)
+s.connect((HOST, PORT))
+
+s.send('Hello World'.encode('ascii'))#in UDP use sendto()
+data = s.recv(1024)#in UDP use recvfrom()
+
+s.close()#end the connection
+print(repr(data.decode('ascii')))

simple_client/client.py

@@ -0,0 +1,21 @@
+# server.py
+
+import socket
+
+HOST, PORT = '127.0.0.1', 1400
+
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)#refer to client.py
+s.bind((HOST, PORT))
+s.listen(1)#listen for 1 connection
+
+conn, addr = s.accept()#start the actual data flow
+
+print('connected to:', addr)
+
+while 1:
+    data = conn.recv(1024).decode('ascii')#receive 1024 bytes and decode using ascii
+    if not data:
+        break
+    conn.send((data + ' [ addition by server ]').encode('ascii'))
+
+conn.close()