--- a/install.py Sat Jun 23 15:29:15 2018 +0200 +++ b/install.py Sat Jun 23 17:59:11 2018 +0200 @@ -13,7 +13,10 @@ try: # Python2 only import cStringIO as io - import sip + try: + import sip + except ImportError: + from PyQt5 import sip sip.setapi('QString', 2) sip.setapi('QVariant', 2) sip.setapi('QTextStream', 2) @@ -1425,7 +1428,10 @@ # check version of sip try: - import sip + try: + import sip + except ImportError: + from PyQt5 import sip sipVersion = sip.SIP_VERSION_STR print("sip Version:", sipVersion.strip()) # always assume, that snapshots or dev versions are new enough