optimized password generation function

src/bot/utils.py

@@ -106,17 +106,17 @@ def check_account(name: str, login: str, passwd: str) -> bool:
 def gen_passwd() -> str:
     """Generates password of length 32"""
     choices = SystemRandom().choices
-    chars = frozenset(string.ascii_letters + string.digits + string.punctuation)
-    # Remove backtick and pipe characters and convert into tuple
-    chars = tuple(chars.difference("`|"))
+    # Remove backtick and pipe from pucntuation
+    punctuation = set(string.punctuation).difference("`|")
+    chars = tuple(string.ascii_letters + string.digits + "".join(punctuation))
     while True:
         passwd = "".join(choices(chars, k=32))
-        passwd_chars = frozenset(passwd)
         # If there is at least one lowercase character, uppercase character
         # and one punctuation character
         if (
-            passwd_chars.intersection(string.ascii_lowercase)
-            and passwd_chars.intersection(string.ascii_uppercase)
-            and passwd_chars.intersection(string.punctuation)
+            any(c.islower() for c in passwd)
+            and any(c.isupper() for c in passwd)
+            and any(c.isdigit() for c in passwd)
+            and any(c in punctuation for c in passwd)
         ):
             return passwd