Fix setup initialization

Signed-off-by: Michal Čihař <michal@cihar.com>

setup.py

@@ -22,15 +22,15 @@
 import os
 from setuptools import setup
 
+# allow setup.py to be run from any path
+os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
+
 with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as readme:
     README = readme.read()
 
 with open('requirements.txt') as requirements:
     REQUIRES = requirements.read().splitlines()
 
-# allow setup.py to be run from any path
-os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
-
 setup(
     name='weblate',
     version='2.3',