What alternatives are there to pylab for plotting in Python? In particular, I'm looking for something that doesn't use the stateful model that pylab does.
8 Answers
Plotly lets you make graphs using a Python API, matplotlib, and pandas. Their IPython gallery has some example scientific graphs with the Python scripts that generated them.
Here's a sample:

Some recent exciting open source offerings:
- ggplot is based on R's ggplot2, with aesthetically pleasing defaults and a really concise api. wants to be a matplotlib killer

- bokeh makes interactive (html canvas) plots. emphasis on interativity + handling big data

- vega translates JSON "plot descriptions" into SVG or Canvas-based interactive plots, and vincent is a declarative interface for generating the JSON specifications.

(source: fastly.net)
 
    
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                    7ggplot isn't trying to be a matplotlib killer...in fact it is a matplotlib wrapper. – Julian Irwin Mar 26 '15 at 15:14
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                    I wouldn't recommend Bokeh. Tried it and it renders into a browser. In my opinion, that's lame. Should've just rendered it into it's own window. Besides, the plot didn't show up on Firefox and Chromium. – Nav Dec 08 '19 at 12:22
You can always use the object-oriented framework for Matplotlib instead of the pylab interface.
 
    
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I was in need of gnuplot interface for Python 3 but have found nothing. So I have ported Gnuplot.py to it. See more info in the 'readme' of the [repository]. Hope this will help someone else in future.
 
    
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There is also a old program for automating the reading, filtering, processing, interpolation and plot n-dimensional values from different sources (like libreOffice- or csv-files) and variable size: diaGrabber.
You have to use some simple python-commands to create a case. After this you can manipulate the graphical output in an interactive GUI.
 
    
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                    pyla-gplot is a small stand alone single python script works with python 3 and above and Gnu plot. – atronoush Sep 08 '10 at 10:30
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                    to get gplot from pyla visit http://pyla.codeplex.com/; It needs Python 3 and Gnuplot 4.0 and above. Gnuplot.py by this date is not compatible with Python 3.x – atronoush Sep 08 '10 at 10:32
 
     
     
     
    