Formatting

rand_char.py

@@ -1,9 +1,48 @@
+#!/usr/bin/env python3
+"""
+Generate and Print Random Unicode Characters
+
+This module generates a string of random Unicode characters, specifically avoiding the
+surrogate pair range (0xD800 to 0xDFFF). The generated string has a default length of
+5000 characters.
+
+Usage:
+    Run the script with an argument to specify the length of the string to be generated:
+    `python script_name.py 5000`
+"""
 import random
+from argparse import ArgumentParser
 
-characters = ''
-try:
-    characters = ''.join([chr(random.choice([i for i in range(0x0, 0xD7FF + 1) if i < 0xD800 or i > 0xDFFF])) for _ in range(5000)])
-except UnicodeEncodeError as e:
-    print(f"Error encoding character: {e}")
 
-print(characters)
+def generate_string(length):
+    characters = ""
+    try:
+        characters = "".join(
+            [
+                chr(
+                    random.choice(
+                        [i for i in range(0x0, 0xD7FF + 1) if i < 0xD800 or i > 0xDFFF]
+                    )
+                )
+                for _ in range(length)
+            ]
+        )
+    except UnicodeEncodeError as e:
+        print(f"Error encoding character: {e}")
+
+    return(characters)
+
+
+if __name__ == "__main__":
+    parser = ArgumentParser(
+        description="Generate a string of random Unicode characters."
+    )
+    parser.add_argument(
+        "length",
+        type=int,
+        default=5000,
+        help="Length of the string to be generated.",
+    )
+    args = parser.parse_args()
+
+    print(generate_string(args.length))