From 126a4e5114be8a2f31d3325f001bc4cc68b42fcf Mon Sep 17 00:00:00 2001
From: BoYanZh <32470225+BoYanZh@users.noreply.github.com>
Date: Fri, 2 Oct 2020 02:10:00 +0800
Subject: Initial commit

---
 util.py | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 util.py

(limited to 'util.py')

diff --git a/util.py b/util.py
new file mode 100644
index 0000000..e1c9e2d
--- /dev/null
+++ b/util.py
@@ -0,0 +1,30 @@
+import logging
+
+
+class Logger():
+    _instance = None
+
+    def __new__(cls, fileName="VG101GradeHelper.log", loggerName="myLogger"):
+        if cls._instance is None:
+            logger = logging.getLogger(loggerName)
+            formatter = logging.Formatter(
+                '[%(asctime)s][%(levelname)8s][%(filename)s %(lineno)3s]%(message)s'
+            )
+            logger.setLevel(logging.DEBUG)
+            streamHandler = logging.StreamHandler()
+            streamHandler.setFormatter(formatter)
+            streamHandler.setLevel(logging.WARNING)
+            fileHandler = logging.FileHandler(filename=fileName)
+            fileHandler.setFormatter(formatter)
+            fileHandler.setLevel(logging.DEBUG)
+            logger.addHandler(fileHandler)
+            logger.addHandler(streamHandler)
+            cls._instance = logger
+        return cls._instance
+
+
+def first(iterable, condition=lambda x: True):
+    try:
+        return next(x for x in iterable if condition(x))
+    except StopIteration:
+        return None
\ No newline at end of file
-- 
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