From 1a80fc5a0e093c5072263b3c3b991538619510cd Mon Sep 17 00:00:00 2001
From: the31k <the31k@thethirty.one>
Date: Wed, 19 Jul 2017 01:35:19 +0300
Subject: [PATCH] Per-thread singletons

---
 telebot/util.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/telebot/util.py b/telebot/util.py
index f524577..ab7650d 100644
--- a/telebot/util.py
+++ b/telebot/util.py
@@ -17,6 +17,9 @@ except ImportError:
 from telebot import logger
 
 
+thread_local = threading.local()
+
+
 class WorkerThread(threading.Thread):
         count = 0
 
@@ -242,3 +245,12 @@ def extract_arguments(text):
     regexp = re.compile("\/\w*(@\w*)*\s*([\s\S]*)",re.IGNORECASE)
     result = regexp.match(text)
     return result.group(2) if is_command(text) else None
+
+
+def per_thread(key, construct_value):
+    try:
+        return getattr(thread_local, key)
+    except AttributeError:
+        value = construct_value()
+        setattr(thread_local, key, value)
+        return value