basic password generator

Tasks.md

@@ -166,3 +166,36 @@ Take a look at the provided Code Example.
 [Code Example](src/miniweb.py)
 
 </details>
+
+## Random Password generator
+
+Difficulty: 2/5
+
+1. Generate a string of 16 random alphanumeric characters.
+2. When starting your script, take a number for a CLI Argument. Generate a random string of this 
+   length.
+
+Example:
+
+```bash
+$ python ./randomString.py 60
+n51uxDLu3BnxZ1D00gYKYRcG2jh1Y6uulHgrJ0TK3w5FtWl6wm8U0azNtxw0
+# ^^^^ the above is 60 characters ^^^^
+```
+
+<details>
+<summary>Hints</summary>
+
+- Use `random.choice` to generate a random character
+- build your own alphabet string
+- Use `sys.argv` to access the CLI Arguments
+
+</details>
+<details>
+<summary>Solution</summary>
+
+Take a look at the provided Code Example.
+
+[Code Example](src/randomString.py)
+
+</details>

src/randomString.py

@@ -1,11 +1,14 @@
 #!/usr/bin/env python3
 import random
 import string
+import sys
 
 def get_random_string(length):
     # choose from all lowercase letter
-    letters = string.ascii_lowercase
-    result_str = ''.join(random.choice(letters) for i in range(length))
+    alphabet = string.ascii_lowercase
+    alphabet += string.ascii_uppercase
+    alphabet += "0123456789"
+    result_str = ''.join(random.choice(alphabet) for i in range(length))
     return result_str
 
-print(get_random_string(20))
+print(get_random_string(int(sys.argv[1])))