sample_pyqtgraph_with_datetime.py - No curve with Python 3 and segfault with Python 2

[s-celles]

I'm facing a problem with sample with PyQtGraph.
This example works fine with Anaconda Python (2 and 3) under Mac OS X
but this same code segfault with Python 2 and no curve is
displayed with Python 3 under Linux (Raspberry Pi Jessie)

see https://groups.google.com/forum/#!topic/pyqtgraph/jA--ryVA7fc

[s-celles]

see also https://gist.github.com/scls19fr/acf6c519f5f5851621f9

[s-celles]

A workaround is to use sample_pyqtgraph_no_datetime.py (x axis being integer)