ci_install: Clean up PyQt URL.

scripts/dev/ci_install.py

@@ -69,10 +69,12 @@ def check_setup(executable):
 
 if 'APPVEYOR' in os.environ:
     print("Getting PyQt5...")
-    urllib.urlretrieve(
-        'http://www.qutebrowser.org/pyqt/'
-            'PyQt5-5.5.1-gpl-Py3.4-Qt5.5.1-x32.exe',
-        r'C:\install-PyQt5.exe')
+    qt_version = '5.5.1'
+    pyqt_version = '5.5.1'
+    pyqt_url = ('http://www.qutebrowser.org/pyqt/'
+                'PyQt5-{}-gpl-Py3.4-Qt{}-x32.exe'.format(
+                    pyqt_version, qt_version))
+    urllib.urlretrieve(pyqt_url, r'C:\install-PyQt5.exe')
 
     print("Fixing registry...")
     with winreg.OpenKey(winreg.HKEY_CURRENT_USER,