From 618ecac39cc0ed6f552a178c235f00df021c7745 Mon Sep 17 00:00:00 2001
From: KevinED11 <mendez_kael@hotmail.com>
Date: Tue, 25 Jul 2023 00:21:37 -0700
Subject: [PATCH] reto #30 - python

---
 .../python/KevinED11.py                       | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 Retos/Reto #30 - EL TECLADO T9 [Media]/python/KevinED11.py

diff --git a/Retos/Reto #30 - EL TECLADO T9 [Media]/python/KevinED11.py b/Retos/Reto #30 - EL TECLADO T9 [Media]/python/KevinED11.py
new file mode 100644
index 0000000000..408deab052
--- /dev/null
+++ b/Retos/Reto #30 - EL TECLADO T9 [Media]/python/KevinED11.py	
@@ -0,0 +1,39 @@
+from functools import lru_cache
+
+
+T9Keyboard = dict[str, str]
+
+
+class InvalidT9Key(Exception):
+  def __init__(self, message: str) -> None:
+     super().__init__(message)
+
+
+@lru_cache(maxsize=120)
+def get_t9_keyboard() -> T9Keyboard:
+  return {str(n): (" ", ",.?!", "ABC", "DEF", "GHI", "JKL", "MNO", "PQRS", "TUV", "WXYZ")[n] for n in range(10)}
+
+
+def convert_t9_key_to_character(key: str) -> str:
+   num_pressed = key[0]
+   if not num_pressed in get_t9_keyboard():
+        raise InvalidT9Key("Enter a valid t9 key")
+
+   return get_t9_keyboard()[num_pressed][len(key) - 1]
+
+
+@lru_cache(maxsize=120)
+def t9_to_text(keys: str) -> str:
+  if not isinstance(keys, str) or not keys:
+    raise ValueError("Enter a T9 secuence string")
+    
+  return "".join(convert_t9_key_to_character(key=key) for key in keys.split("-"))
+
+
+def main() -> None:
+    mouredev = t9_to_text("6-666-88-777-33-3-33-888")
+    print(mouredev)
+
+
+if __name__ == "__main__":
+    main()