Initial data commit

Task/Password-generator/Python/password-generator.py

@@ -0,0 +1,34 @@
+import random
+
+lowercase = 'abcdefghijklmnopqrstuvwxyz' # same as string.ascii_lowercase
+uppercase = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' # same as string.ascii_uppercase
+digits = '0123456789'                    # same as string.digits
+punctuation = '!"#$%&\'()*+,-./:;<=>?@[]^_{|}~' # like string.punctuation but without backslash \ nor grave `
+
+allowed = lowercase + uppercase + digits + punctuation
+
+visually_similar = 'Il1O05S2Z'
+
+
+def new_password(length:int, readable=True) -> str:
+    if length < 4:
+        print("password length={} is too short,".format(length),
+            "minimum length=4")
+        return ''
+    choice = random.SystemRandom().choice
+    while True:
+        password_chars = [
+            choice(lowercase),
+            choice(uppercase),
+            choice(digits),
+            choice(punctuation)
+            ] + random.sample(allowed, length-4)
+        if (not readable or
+                all(c not in visually_similar for c in password_chars)):
+            random.SystemRandom().shuffle(password_chars)
+            return ''.join(password_chars)
+
+
+def password_generator(length, qty=1, readable=True):
+    for i in range(qty):
+        print(new_password(length, readable))