matplotlib / matplotlib Public

This is the second bugfix release of the 3.4.x series.

This release contains several critical bug-fixes:

• Generate wheels usable on older PyPy7.3.{0,1}
• Fix compatibility with Python 3.10
• Add subplot_mosaic Axes in the order the user gave them to us
• Correctly handle 'none' facecolors in do_3d_projection
• Ensure that Matplotlib is importable even if there's no HOME
• Fix CenteredNorm with halfrange
• Fix bar_label for bars with NaN values
• Fix clip paths when zoomed such that they are outside the figure
• Fix creation of RangeSlider with valinit
• Fix handling of "d" glyph in backend_ps, fixing EPS output
• Fix handling of datetime coordinates in pcolormesh with Pandas
• Fix processing of some errorbar arguments
• Fix removal of shared polar Axes
• Fix resetting grid visibility
• Fix subfigure indexing error and tight bbox
• Fix textbox cursor color
• Fix TkAgg event loop error on window close
• Ignore errors for sip with no setapi (Qt4Agg import errors)

This is the first bugfix release of the 3.4.x series.

This release contains several critical bug-fixes:

• fix errorbar when specifying fillstyle
• fix Inkscape cleanup at exit on Windows for tests
• fix legends of colour-mapped scatter plots
• fix positioning of annotation fancy arrows
• fix size and color rendering for 3D scatter plots
• fix suptitle manual positioning when using constrained layout
• respect antialiasing settings in cairo backends as well

Highlights of this release include:

• Figure and Axes creation / management
  • New subfigure functionality
  • Single-line string notation for subplot_mosaic
  • Changes to behavior of Axes creation methods (gca, add_axes, add_subplot)
  • add_subplot/add_axes gained an axes_class parameter
  • Subplot and subplot2grid can now work with constrained layout
• Plotting methods
  • axline supports transform parameter
  • New automatic labeling for bar charts
  • A list of hatches can be specified to bar and barh
  • Setting BarContainer orientation
  • Contour plots now default to using ScalarFormatter
  • Axes.errorbar cycles non-color properties correctly
  • errorbar errorevery parameter matches markevery
  • hexbin supports data reference for C parameter
  • Support callable for formatting of Sankey labels
  • Axes.spines access shortcuts
  • New stairs method and StepPatch artist
  • Added orientation parameter for stem plots
  • Angles on Bracket arrow styles
  • TickedStroke patheffect
• Colors and colormaps
  • Collection color specification and mapping
  • Transparency (alpha) can be set as an array in collections
  • pcolormesh has improved transparency handling by enabling snapping
  • IPython representations for Colormap objects
  • Colormap.set_extremes and Colormap.with_extremes
  • Get under/over/bad colors of Colormap objects
  • New cm.unregister_cmap function
  • New CenteredNorm for symmetrical data around a center
  • New FuncNorm for arbitrary normalizations
  • GridSpec-based colorbars can now be positioned above or to the left of the main axes
• Titles, ticks, and labels
  • supxlabel and supylabel
  • Shared-axes subplots tick label visibility is now correct for top or left labels
  • An iterable object with labels can be passed to Axes.plot
• Fonts and Text
  • Text transform can rotate text direction
  • matplotlib.mathtext now supports overset and underset LaTeX symbols
  • math_fontfamily parameter to change Text font family
  • TextArea/AnchoredText support horizontalalignment
  • PDF supports URLs on Text artists
• rcParams improvements
  • New rcParams for dates: set converter and whether to use interval_multiples
  • Date formatters now respect usetex rcParam
  • Setting image.cmap to a Colormap
  • Tick and tick label colors can be set independently using rcParams
• 3D Axes improvements
  • Errorbar method in 3D Axes
  • Stem plots in 3D Axes
  • 3D Collection properties are now modifiable
  • Panning in 3D Axes
• Interactive tool improvements
  • New RangeSlider widget
  • Sliders can now snap to arbitrary values
  • Pausing and Resuming Animations
• Sphinx extensions
  • plot_directive caption option
• Backend-specific improvements
  • Consecutive rasterized draws now merged
  • Support raw/rgba frame format in FFMpegFileWriter
  • nbAgg/WebAgg support middle-click and double-click
  • nbAgg support binary communication
  • Indexed color for PNG images in PDF files when possible
  • Improved font subsettings in PDF/PS
  • Kerning added to strings in PDFs
  • Fully-fractional HiDPI in QtAgg
  • wxAgg supports fullscreen toggle

This is the fourth bugfix release of the 3.3.x series.

This release contains several critical bug-fixes:

• Fix WebAgg initialization.
• Fix parsing QT_API setting with mixed case.
• Fix build with link-time optimization disabled in environment.
• Fix test compatibility with NumPy 1.20.
• Fix test compatibility with pytest 6.2.

This is the third bugfix release of the 3.3.x series.

This release contains several critical bug-fixes:

• Fix calls to Axis.grid with argument visible=True.
• Fix fully masked imshow.
• Fix inconsistent color mapping in scatter for 3D plots.
• Fix notebook/nbAgg figures when used with ipywidgets in the same cell.
• Fix notebook/nbAgg/WebAgg on older (e.g., Firefox ESR) browsers.
• Fix pcolormesh with datetime coordinates.
• Fix performance regression with datetimes.
• Fix singular ticks with small log ranges.
• Fix timers/animations on wx and notebook backends.
• Remove certifi as a hard runtime dependency.