From 24d7e0178e944096c7561779ce094553f782d027 Mon Sep 17 00:00:00 2001
From: zxystack <573991906@qq.com>
Date: Mon, 26 Mar 2018 17:52:11 +0800
Subject: [PATCH] Create simple_defaultdict

---
 simple_defaultdict | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 simple_defaultdict

diff --git a/simple_defaultdict b/simple_defaultdict
new file mode 100644
index 0000000..7956179
--- /dev/null
+++ b/simple_defaultdict
@@ -0,0 +1,11 @@
+class Defaultdict(dict):
+
+	def __init__(self, func):
+		self._default = func()
+
+	def __getitem__(self, key):
+		try:
+			return dict.__getitem__(self, key)
+		except KeyError:
+			self[key] = self._default
+			return self[key]