The best replacement for matplotlib is gnuplot.

The best alternatives to matplotlib are rated as following:
★★★★★  gnuplot
★★★★  matlab
★★★★  pylab
★★★  chaco
★★★  ggplot2
★★★  pyplot
★★  bokeh
★★  plotly
★★  pgfplots
★  pyqtgraph
★  mayavi
★  pyqwt
★  pyx
★  veusz
★  scipy
★  numpy
  asymptote

Your alternative for matplotlib is not listed? Suggest!
Speaking about matplotlib, one probably shouldn't forget about ipython.

Other search terms related to matplotlib and their ratings are:
★★★★★ ipython
★★★★ wxpython
★★★ pyqt
★★★ pyside
★★ axes
★★ tkinter
You have in mind a companion for matplotlib and it is not yet here? Propose!



Google Trends

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matplotlib
gnuplot
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