From b9654dfd0124870c6e528687a0f34f591bf1f6ce Mon Sep 17 00:00:00 2001
From: Carlos Cordoba <ccordoba12@gmail.com>
Date: Mon, 4 Jul 2016 16:23:42 -0500
Subject: [PATCH] Allow QT_API values that are not completely in lower case

---
 qtpy/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qtpy/__init__.py b/qtpy/__init__.py
index b6392f5d..b8373439 100644
--- a/qtpy/__init__.py
+++ b/qtpy/__init__.py
@@ -68,7 +68,7 @@
 PYSIDE_API = ['pyside']
 
 os.environ.setdefault(QT_API, 'pyqt5')
-API = os.environ[QT_API]
+API = os.environ[QT_API].lower()
 assert API in (PYQT5_API + PYQT4_API + PYSIDE_API)
 
 is_old_pyqt = is_pyqt46 = False