Implemented generate_password function

src/main.py

@@ -1,11 +1,43 @@
 # Resolve the problem!!
 import string
+import random
 
 SYMBOLS = list('!"#$%&\'()*+,-./:;?@[]^_`{|}~')
-
+UPPERCASES = list('ABCDEFGHIJKLMNOPQRSTUVWXYZ')
+LOWERCASES = list('abcdefghijklmnopqrstuvwxyz')
+DIGITS = list('0123456789')
 
 def generate_password():
-    # Start coding here
+    """
+        1. Create a list with a random lenght between 8 and  16, filled with x
+        2. Fill the list with every type of characters radomly, diff. even and odd
+        3. Because the list was filled with an even-odd index order, it must be shuffle randomly 
+    """
+
+    length = random.randint(8, 16)
+    password = list('x' * length)
+
+    i = 0
+    while i < length/2:
+        if i%2 == 0:
+            password[i] = SYMBOLS[random.randint(0, len(SYMBOLS)-1)]
+            i += 1
+        else:
+            password[i] = DIGITS[random.randint(0, len(DIGITS)-1)]
+            i += 1
+
+    while i < length:
+        if i%2 == 0:
+            password[i] = UPPERCASES[random.randint(0, len(UPPERCASES)-1)]
+            i += 1
+        else:
+            password[i] = LOWERCASES[random.randint(0, len(LOWERCASES)-1)]
+            i += 1 
+
+    random.shuffle(password)
+    str_pass = ''
+
+    return str_pass.join(password)
 
 
 def validate(password):