[PyQt] licence issue

[Kevin Mcintyre]

python configure.py --qmake=/home/ubuntu/Qt/5.5/gcc_64/bin/qmake -e QtWebkit
Querying qmake about your Qt installation...
Determining the details of your Qt installation...
This is the GPL version of PyQt 5.5.1-snapshot-7ff58420e62e (licensed under
the
GNU General Public License) for Python 2.7.6 on linux2.
Error: This version of PyQt5 and the commercial version of Qt have
incompatible
licenses.

Must I buy a licence to build PyQt for QtWebkit or should I stay at 5.4.1
for Qt where this seemed to work?
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