>>> """
=======================
Adding lines to figures
=======================

Adding lines to a figure without any axes.
"""
... 
... import matplotlib.pyplot as plt
... import matplotlib.lines as lines
... 
... 
... fig = plt.figure()
... fig.add_artist(lines.Line2D([0, 1], [0, 1]))
... fig.add_artist(lines.Line2D([0, 1], [1, 0]))
... plt.show()
... 
... #############################################################################
... #
... # .. admonition:: References
... #
... #    The use of the following functions, methods, classes and modules is shown
... #    in this example:
... #
... #    - `matplotlib.pyplot.figure`
... #    - `matplotlib.lines`
... #    - `matplotlib.lines.Line2D`
...