Hello,
I have found the following histogram example
http://gnuplot.sourceforge.net/demo/histograms.4.png

which was created with the following gnuplot code:
http://gnuplot.sourceforge.net/demo/histograms.4.gnu

and with this data set
http://212.182.0.171/cgi-bin/dwww/usr/share/doc/gnuplot-doc/examples/immigration.dat

How is it possible to do this with Matplotlib?

Thank you in advance.