Matplotlib

Matplotlib is perfect for generating 2D graphics in Python apps and websites.

Can be used for drawing histograms, spectrums, charts, etc., all via simple line of code.

Matplotlib was inspired by languages like Mathematica and MATLAB.

What is new in this release:

• Added support for datetime axes to 2d plots.
• Allowed matplotlib.dates.date2num, matplotlib.dates.num2date, and matplotlib.dates.datestr2num to accept n-d inputs.

What is new in version 1.1.1:

• Unit support for polar axes and arrow()
• PolarAxes gains getters and setters for "theta_direction", and "theta_offset" to allow for theta to go in either the clock-wise or counter-clockwise direction and to specify where zero degrees should be placed. set_theta_zero_location() is an added convenience function.
• Fixed error in argument handling for tri-functions such as tripcolor()
• axes.labelweight parameter added to rcParams.
• For imshow(), interpolation='nearest' will now always perform an interpolation. A "none" option has been added to indicate no interpolation at all.
• An error in the Hammer projection has been fixed.
• clabel for contour() now accepts a callable. Thanks to Daniel Hyams for the original patch.
• Jae-Joon Lee added the HBox and VBox classes.
• Christoph Gohlke reduced memory usage in imshow().
• scatter() now accepts empty inputs.

What is new in version 1.0.1:

• Finance: change volume to float.
• Updated pytz to 2010o.
• Fixed cyclical import problem.
• Fix memory leak in text layout handling.
• Fixed typo in mplot3d tutorial.

Requirements:

• Python 2.4.x up to 2.7.x