IPython Documentation

Table Of Contents

Previous topic

Module: core.prompts

Next topic

Module: core.shellapp

This Page


This documentation is for a development version of IPython. There may be significant differences from the latest stable release.

Module: core.pylabtools

Pylab (matplotlib) support utilities.

10 Functions


Get a list of matplotlib figures by figure numbers.

If no arguments are given, all available figures are returned. If the argument list contains references to invalid figures, a warning is printed but the function continues pasting further figures.


figs : tuple

A tuple of ints giving the figure numbers of the figures to return.

IPython.core.pylabtools.figsize(sizex, sizey)

Set the default figure size to be [sizex, sizey].

This is just an easy to remember, convenience wrapper that sets:

matplotlib.rcParams['figure.figsize'] = [sizex, sizey]
IPython.core.pylabtools.print_figure(fig, fmt='png', bbox_inches='tight', **kwargs)

Print a figure to an image, and return the resulting file data

Returned data will be bytes unless fmt='svg', in which case it will be unicode.

Any keyword args are passed to fig.canvas.print_figure, such as quality or bbox_inches.

IPython.core.pylabtools.retina_figure(fig, **kwargs)

format a figure as a pixel-doubled (retina) PNG


Factory to return a matplotlib-enabled runner for %run.


safe_execfile : function

This must be a function with the same interface as the safe_execfile() method of IPython.


A function suitable for use as the runner argument of the %run magic


IPython.core.pylabtools.select_figure_formats(shell, formats, **kwargs)

Select figure formats for the inline backend.


shell : InteractiveShell

The main IPython instance.

formats : str or set

One or a set of figure formats to enable: ‘png’, ‘retina’, ‘jpeg’, ‘svg’, ‘pdf’.

**kwargs : any

Extra keyword arguments to be passed to fig.canvas.print_figure.

IPython.core.pylabtools.find_gui_and_backend(gui=None, gui_select=None)

Given a gui string return the gui and mpl backend.


gui : str

Can be one of (‘tk’,’gtk’,’wx’,’qt’,’qt4’,’inline’).

gui_select : str

Can be one of (‘tk’,’gtk’,’wx’,’qt’,’qt4’,’inline’). This is any gui already selected by the shell.


A tuple of (gui, backend) where backend is one of (‘TkAgg’,’GTKAgg’,



Activate the given backend and set interactive to True.

IPython.core.pylabtools.import_pylab(user_ns, import_all=True)

Populate the namespace with pylab-related values.

Imports matplotlib, pylab, numpy, and everything from pylab and numpy.

Also imports a few names from IPython (figsize, display, getfigs)

IPython.core.pylabtools.configure_inline_support(shell, backend)

Configure an IPython shell object for matplotlib use.


shell : InteractiveShell instance

backend : matplotlib backend