matplotlib/matplotlib issues and pull requests

#30575 - [Bug]: Regression in widget behavior

Issue - State: open - Opened by larsoner 2 months ago - 3 comments
Labels: status: confirmed bug, Release critical

#30549 - [Bug]: Inconsistent line anti-aliasing in PolyCollection

Issue - State: open - Opened by lganic 2 months ago - 7 comments
Labels: status: confirmed bug

#30320 - [Bug]: `fill_between` with `get_xaxis_transform` increases y-limits

Issue - State: closed - Opened by metachow 4 months ago - 6 comments
Labels: status: confirmed bug

#30218 - [Bug]: Rendering on Wayland with fractional scaling looks bad

Issue - State: closed - Opened by cbrnr 5 months ago - 18 comments
Labels: status: confirmed bug, status: upstream fix required, GUI: Qt

#30164 - [Bug]: Removing spines in polar plot causes distortion of the plot

Issue - State: closed - Opened by sjbabdi 6 months ago - 4 comments
Labels: status: confirmed bug, topic: polar

#30078 - [Bug]: legend no longer works with itertools.chain

Issue - State: closed - Opened by jonnybolton16 6 months ago - 2 comments
Labels: status: confirmed bug

#30076 - [Bug]: Layout Managers are confused by complex arrangement of sub-figures and gridspec's

Issue - State: open - Opened by boffi 6 months ago - 4 comments
Labels: status: confirmed bug, topic: geometry manager

#30007 - Axes.pie([0, 0]) crashes with “cannot convert float NaN to integer” when all slice sizes are zero

Issue - State: closed - Opened by PouyaSA96 7 months ago - 4 comments
Labels: status: confirmed bug, Good first issue

#29917 - [Bug]: Contour plots using mollweide-projection

Issue - State: closed - Opened by hoyer-a 7 months ago - 1 comment
Labels: status: confirmed bug

#29615 - [Bug]: pcolormesh's default x/y range might break `set_scale('log')`

Issue - State: closed - Opened by arashgmn 9 months ago - 8 comments
Labels: status: confirmed bug, status: has patch

#29540 - [Bug]: matshow(..., fignum=...) broken

Issue - State: closed - Opened by DerWeh 10 months ago - 1 comment
Labels: status: confirmed bug, Documentation: API

#29522 - [Bug]: Image color limits not correctly updated with set_clim() IFF color bar present AND new norm.vmin > old norm.vmax

Issue - State: closed - Opened by erikdendekker 10 months ago - 15 comments
Labels: status: confirmed bug, topic: color/colorbar

#29516 - [Bug]: Cannot draw arrow from polar plot origin after setting rticks

Issue - State: open - Opened by Valkje 10 months ago - 2 comments
Labels: status: confirmed bug, topic: text

#29507 - [Bug]: Duplicating the labels in the `height`/`width` argument in `barh()`/`bar` leads to undrawn bars

Issue - State: closed - Opened by JosephBARBIERDARNAL 10 months ago - 7 comments
Labels: status: confirmed bug, topic: units and array ducktypes

#29301 - [Bug]: Blank EPS output with legend and annotate

Issue - State: closed - Opened by AllanChain 12 months ago - 3 comments
Labels: status: confirmed bug, backend: ps, topic: legend, topic: annotation

#29219 - [Bug]: Missing axes limits auto-scaling support for LineCollection

Issue - State: closed - Opened by carlosgmartin 12 months ago - 14 comments
Labels: status: confirmed bug

#29179 - [Bug]: Incorrect pcolormesh when shading='nearest' and only the mesh data C is provided.

Issue - State: closed - Opened by smith2936 about 1 year ago - 5 comments
Labels: status: confirmed bug, Good first issue

#29142 - [MNT]: Draggable legend gets stuck on cursor after scroll event

Issue - State: closed - Opened by p479h about 1 year ago - 5 comments
Labels: status: confirmed bug, status: has patch

#28990 - [Bug]: no longer able to set multiple hatch colors

Issue - State: closed - Opened by kafitzgerald about 1 year ago - 3 comments
Labels: status: confirmed bug

#28960 - [Bug]: High CPU utilization of the macosx backend

Issue - State: closed - Opened by cinsk about 1 year ago - 7 comments
Labels: status: confirmed bug, GUI: MacOSX

#28941 - [Bug]: unexplicit error message when using `matplotlib.colors.rgb_to_hsv()` with wrong input

Issue - State: closed - Opened by JosephBARBIERDARNAL about 1 year ago - 5 comments
Labels: status: confirmed bug, topic: color/color & colormaps

#28885 - [Bug]: Strange errorbar caps when polar axes have non-default theta direction or theta zero location

Issue - State: closed - Opened by Hem-W about 1 year ago - 11 comments
Labels: status: confirmed bug, topic: polar

#28870 - [Bug]: axline doesn't work with some axes scales

Issue - State: closed - Opened by mesvam about 1 year ago - 2 comments
Labels: status: confirmed bug, status: has patch

#28793 - `patheffects.SimpleLineShadow` calling non-existent `get_foreground` method from GraphicsContextBase

Issue - State: open - Opened by wsidl about 1 year ago - 1 comment
Labels: status: confirmed bug

#28772 - [Bug]: `axes.get_tick_params()` does not return `labelbottom` or `labeltop`

Issue - State: closed - Opened by GenieTim about 1 year ago - 5 comments
Labels: status: confirmed bug, status: duplicate, Good first issue, topic: ticks axis labels

#28648 - [Bug]: format_image_data on an image of only zeros produses a large number of zeros

Issue - State: closed - Opened by trygvrad over 1 year ago - 1 comment
Labels: status: confirmed bug

#28448 - [Bug]: Making an RGB image from pickled data throws error

Issue - State: closed - Opened by scottshambaugh over 1 year ago - 4 comments
Labels: status: confirmed bug, topic: pickle

#28367 - [Bug]: Backend entry points can be erroneously duplicated

Issue - State: closed - Opened by ianthomas23 over 1 year ago
Labels: status: confirmed bug, third-party integration: jupyter, topic: backends

#28358 - [Bug]: Labels don't get wrapped when set_yticks() is used in subplots

Issue - State: closed - Opened by soogui over 1 year ago - 7 comments
Labels: status: confirmed bug, topic: ticks axis labels

#28341 - [Bug]: Incorrect X-axis scaling with date values

Issue - State: closed - Opened by pm13 over 1 year ago - 4 comments
Labels: status: confirmed bug, status: has patch

#28298 - [Bug]: set linestyle='dashed' raise error with quiver and legend

Issue - State: open - Opened by quzhijing over 1 year ago - 7 comments
Labels: status: confirmed bug, topic: plotting methods

#28223 - [Bug]: Inconsistent Visualization of Intervals in ax.barh for Different Duration Widths

Issue - State: closed - Opened by AndreasLR over 1 year ago - 3 comments
Labels: status: confirmed bug

#28170 - [Doc]: `get_figure` may return a `SubFigure`

Issue - State: closed - Opened by rcomer over 1 year ago - 8 comments
Labels: Documentation, status: confirmed bug, API: consistency, topic: figures and subfigures

#27954 - [ENH]: Iterables in grouped histogram labels

Issue - State: closed - Opened by cwindolf over 1 year ago - 13 comments
Labels: status: confirmed bug, Difficulty: Easy, Good first issue

#27865 - [Bug]: Zoom und pan not working after writing pdf pages.

Issue - State: closed - Opened by Erwin-Wert over 1 year ago - 6 comments
Labels: status: confirmed bug

#27831 - [Bug]: Nondeterminism in SVG clipPath element id attributes

Issue - State: closed - Opened by jayaddison over 1 year ago - 6 comments
Labels: status: confirmed bug, backend: svg, Difficulty: Medium, Good first issue

#27784 - [Bug]: Polar plot error bars don't rotate with angle for `set_theta_direction` and `set_theta_offset`

Issue - State: closed - Opened by th0ger almost 2 years ago - 3 comments
Labels: status: confirmed bug, topic: polar

#27763 - [Bug]: colorbar doesn't register inset_axis as cax

Issue - State: closed - Opened by ericasaw almost 2 years ago - 12 comments
Labels: status: confirmed bug, topic: mpl_toolkit, backend: pdf

#27638 - [Bug]: Empty bars are styled incorrectly in legend

Issue - State: closed - Opened by rongcuid almost 2 years ago - 7 comments
Labels: status: confirmed bug, topic: legend

#27603 - [Bug]: _raw_ticker() istep

Issue - State: closed - Opened by BertJorissen almost 2 years ago - 6 comments
Labels: status: confirmed bug

#27596 - [Bug]: Markers with numeric name like CARETLEFT cannot be specified using a cycler

Issue - State: closed - Opened by castilma almost 2 years ago - 5 comments
Labels: status: confirmed bug, Difficulty: Medium, Good first issue

#27361 - [Bug]: (Tight) layout engine breaks for 3D patches

Issue - State: closed - Opened by thrien about 2 years ago - 8 comments
Labels: topic: mplot3d, status: confirmed bug

#26972 - [Bug]: set_theta_offset removes grid outline

Issue - State: open - Opened by am-thyst about 2 years ago - 9 comments
Labels: status: confirmed bug, topic: polar

#26971 - [Bug]: plt.clabel raises exception at very low DPI: `ValueError: 'codes' must be a 1D list or array with the same length of 'vertices'. Your vertices have shape (2, 2) but your codes have shape (1,)`

Issue - State: closed - Opened by lpsinger about 2 years ago - 5 comments
Labels: status: confirmed bug, Release critical, topic: contour

#26949 - [Bug]: colors.LinearSegmentedColormap.from_list does not take two tuples in 3.8.0

Issue - State: closed - Opened by dave-shirley-faraday about 2 years ago - 3 comments
Labels: status: confirmed bug

#26839 - [Bug]: plot arguments color = "C0" and simply "C0" lead to different results.

Issue - State: closed - Opened by ecciv about 2 years ago - 5 comments
Labels: status: confirmed bug, status: duplicate

#26824 - [Bug]: Legend fails for bar plot with numeric label

Issue - State: closed - Opened by cliffckerr about 2 years ago - 1 comment
Labels: status: confirmed bug, Release critical

#26588 - [Bug]: Tick class instantiation returns an error when labelcolor is a tuple

Issue - State: closed - Opened by jpdehollain over 2 years ago - 4 comments
Labels: status: confirmed bug

#26497 - [Bug]: AttributeError: 'Path3DCollection' object has no attribute '_offset_zordered' (possible regression)

Issue - State: closed - Opened by varkappadev over 2 years ago - 6 comments
Labels: topic: mplot3d, status: confirmed bug

#26484 - [Bug]: Turning on minor gridlines in a multi-Axes Figure, created with subplots(), that contains >1 boxplot results in a ValueError

Issue - State: closed - Opened by chupin10 over 2 years ago - 2 comments
Labels: status: confirmed bug, topic: ticks axis labels

#26236 - [Bug]: ax.scatter (projection='3d') - incorrect handling of NaN

Issue - State: closed - Opened by 2sn over 2 years ago - 3 comments
Labels: topic: mplot3d, status: confirmed bug

#26118 - [Bug]: symlog scale generates false warning when mouse is moved

Issue - State: closed - Opened by jxjo over 2 years ago - 11 comments
Labels: status: confirmed bug

#26092 - [Bug]: alpha array-type not working with RGB image in imshow()

Issue - State: open - Opened by patquem over 2 years ago - 25 comments
Labels: status: confirmed bug, topic: color/alpha, Difficulty: Medium, Good first issue, topic: images

#25860 - [Bug]: canvas pick events not working when Axes belongs to a subfigure

Issue - State: closed - Opened by ndeadly over 2 years ago - 11 comments
Labels: status: confirmed bug, Difficulty: Medium, Good first issue

#25671 - [Bug]: Mouse Scroll Event is not caputred if ALT key is pressed

Issue - State: open - Opened by ramsluk over 2 years ago - 5 comments
Labels: status: confirmed bug, GUI: Qt, Difficulty: Medium, Good first issue

#25239 - [Bug]: colors.PowerNorm results in incorrect colorbar

Issue - State: closed - Opened by julietbravo almost 3 years ago - 3 comments
Labels: status: confirmed bug, topic: color/colorbar

#25204 - [Bug]: Pyparsing warnings emitted in mathtext

Issue - State: closed - Opened by jmd-dk almost 3 years ago - 4 comments
Labels: status: confirmed bug, topic: text/mathtext

#24865 - [Bug]: NumPy 1.24 deprecation warnings

Issue - State: closed - Opened by sergiud almost 3 years ago - 7 comments
Labels: status: confirmed bug, Release critical, topic: color/color & colormaps

#24790 - [Bug]: Polar plot wrong Y values when set_ylim is used

Issue - State: open - Opened by afarcy almost 3 years ago - 7 comments
Labels: status: confirmed bug, topic: polar

#24644 - [Bug]: `fig.set_dpi()` and `figure.dpi` option in `matplotlibrc` file not working

Issue - State: open - Opened by BearBearCodes almost 3 years ago - 11 comments
Labels: status: confirmed bug

#23911 - [Bug]: 3.6.0 doesn't interact well with pycharm throwing "backend_interagg" exception

Issue - State: closed - Opened by ucfbrd about 3 years ago - 13 comments
Labels: status: confirmed bug, third-party integration

#23385 - [ENH]: Ctrl+C on a blocking show() should close the figure window

Issue - State: open - Opened by timhoffm over 3 years ago - 10 comments
Labels: status: confirmed bug

#23359 - [Bug]: figure.savefig ignores Figure.dpi changes if `dpi='figure'` is used

Issue - State: open - Opened by fday over 3 years ago - 3 comments
Labels: status: confirmed bug

#23303 - [Bug]: Marker missing from legend for contour plots

Issue - State: open - Opened by anton-seaice over 3 years ago - 15 comments
Labels: status: confirmed bug, topic: legend

#22545 - [Bug]: M1 Mac, interactive fails in jupyter notebook and jupyter lab

Issue - State: closed - Opened by shiba24 almost 4 years ago - 16 comments
Labels: status: confirmed bug, OS: Apple, status: upstream fix required

#21879 - [Bug]: bbox floating point size mismatch

Issue - State: closed - Opened by blatr almost 4 years ago - 5 comments
Labels: status: confirmed bug

#21506 - [Bug]: plt.bar legend displays incorrect style for empty data

Issue - State: open - Opened by phoenix-meadowlark about 4 years ago - 1 comment
Labels: status: confirmed bug, topic: collections and mappables

#21409 - [Bug]: twinx and twiny ignores previous set_position

Issue - State: open - Opened by bfield1 about 4 years ago - 2 comments
Labels: status: confirmed bug, topic: axes

#21331 - [Bug]: Parasite axis: right Y scale factor on wrong side?

Issue - State: open - Opened by petrvokac about 4 years ago - 3 comments
Labels: status: confirmed bug, topic: mpl_toolkit

#20575 - cm.set_bad() not working for specific values of grayscale and dpi when saving as pdf

Issue - State: closed - Opened by bugalo over 4 years ago - 1 comment
Labels: status: confirmed bug, backend: pdf

#20529 - Contour line level labeling not correct

Issue - State: open - Opened by asteppke over 4 years ago - 6 comments
Labels: status: confirmed bug, topic: contour

#20512 - Bad boxplot legend entries

Issue - State: closed - Opened by RSKothari over 4 years ago - 5 comments
Labels: status: confirmed bug, topic: legend

#19856 - BUG: Contours with LogNorm

Issue - State: open - Opened by neutrinoceros over 4 years ago - 15 comments
Labels: status: confirmed bug, topic: contour

#19832 - Positioning floating_axes.FloatingSubplot

Issue - State: closed - Opened by w2naf over 4 years ago - 21 comments
Labels: status: confirmed bug, topic: mpl_toolkit, status: has patch

#19748 - Incorrect & inconsistent coloring in .imshow() with LogNorm

Issue - State: closed - Opened by mdmisch over 4 years ago - 18 comments
Labels: status: confirmed bug, topic: images

#19735 - index in pick_event invalid and inconsistent for mplot3d scatter plot (z ordering?)

Issue - State: open - Opened by saasbk over 4 years ago - 5 comments
Labels: topic: mplot3d, status: confirmed bug

#19561 - Memory leak with FuncAnimation and matshow.

Issue - State: closed - Opened by david-hoffman almost 5 years ago - 4 comments
Labels: Documentation, status: confirmed bug, topic: animation, topic: images, status: inactive, status: closed as inactive

#19290 - axis limits don't update on add_artist

Issue - State: open - Opened by nschloe almost 5 years ago - 7 comments
Labels: status: confirmed bug

#19078 - _update_patch_limits should not use CLOSEPOLY vertices for updating

Issue - State: closed - Opened by jsberg-bnl almost 5 years ago - 1 comment
Labels: status: confirmed bug, Good first issue

#19029 - Default position of colorbar labels overlays its values

Issue - State: open - Opened by dokato almost 5 years ago - 8 comments
Labels: status: confirmed bug, Difficulty: Medium

#18757 - SymmetricalLogLocator adds extra erroneous major ticks due to floating-point precision error

Issue - State: open - Opened by JS3xton about 5 years ago - 1 comment
Labels: status: confirmed bug, topic: ticks axis labels, topic: transforms and scales, keep

#18530 - quiverkey.get_window_extent does not work

Issue - State: open - Opened by dcherian about 5 years ago - 5 comments
Labels: status: confirmed bug

#18052 - the limits of axes are inexact with mplot3d

Issue - State: closed - Opened by ultimatile over 5 years ago - 6 comments
Labels: topic: mplot3d, status: confirmed bug, API: consistency, API: changes, Difficulty: Medium

#18045 - Cannot access hexbin data when `xscale='log'` and `yscale='log'` are set.

Issue - State: closed - Opened by mankoff over 5 years ago - 4 comments
Labels: status: confirmed bug

#17931 - rc_context context manager does not correctly enable latex preamble

Issue - State: closed - Opened by mueslo over 5 years ago - 9 comments
Labels: status: confirmed bug, topic: text/usetex, status: inactive

#17914 - `PathSimplifier` fails to ignore `CLOSEPOLY` vertices

Issue - State: closed - Opened by brunobeltran over 5 years ago - 3 comments
Labels: status: confirmed bug, topic: path handling, Difficulty: Medium, Good first issue

#17790 - Using facecolors='none' with a scatter plot results in off-centered symbols

Issue - State: open - Opened by stephjuneau over 5 years ago - 11 comments
Labels: status: confirmed bug

#17487 - Polygon selector with useblit=True - polygon disappears

Issue - State: closed - Opened by Stassels over 5 years ago - 3 comments
Labels: status: confirmed bug, topic: widgets/UI

#17454 - %matplotlib inline called from IPython turns interactive mode off, forever and only for scripts

Issue - State: open - Opened by vincenzooo over 5 years ago - 5 comments
Labels: status: confirmed bug, status: upstream fix required

#17130 - autoscale_view is not working with Line3DCollection

Issue - State: closed - Opened by sylee957 over 5 years ago - 1 comment
Labels: topic: mplot3d, status: confirmed bug

#17046 - imshow origin and contour origin behave differently

Issue - State: open - Opened by anntzer over 5 years ago - 8 comments
Labels: status: confirmed bug, API: consistency, topic: images, status: inactive

#17036 - SVG backend misspaces tick labels when `text.usetex=True`

Issue - State: open - Opened by brunobeltran over 5 years ago - 2 comments
Labels: status: confirmed bug, backend: svg, topic: text/usetex, keep

#16758 - take a long time to plot dashed vlines

Issue - State: open - Opened by tomii9273 over 5 years ago - 5 comments
Labels: status: confirmed bug, backend: agg, Difficulty: Medium

#16641 - Transforms of BoundingBox objects wrong (when backend uses dpi != 72)

Issue - State: closed - Opened by griai over 5 years ago - 5 comments
Labels: status: confirmed bug, backend: pdf, topic: transforms and scales, status: inactive, status: closed as inactive

#16066 - polar spines are brittle

Issue - State: open - Opened by anntzer almost 6 years ago - 1 comment
Labels: status: confirmed bug, topic: polar, keep

#16052 - Matplotlib save to pdf not showing hatch marks in bar plot — potential bug?

Issue - State: closed - Opened by vkidamisc almost 6 years ago - 7 comments
Labels: status: confirmed bug, backend: pdf, keep

#15835 - "set_rlabel_position" don't work when "set_thetamin"

Issue - State: open - Opened by ewan1983 almost 6 years ago - 2 comments
Labels: status: confirmed bug, topic: polar, keep

#14444 - ipdb forcing interactive mode/ not plotting in new updates

Issue - State: closed - Opened by cgrudz over 6 years ago - 4 comments
Labels: status: confirmed bug, third-party integration, status: inactive, status: closed as inactive

#14404 - Odd behavior when using `collections.set_color`

Issue - State: closed - Opened by seth-a over 6 years ago - 5 comments
Labels: status: confirmed bug, status: inactive, status: closed as inactive

#14272 - Graph is wrong when saved as .eps

Issue - State: open - Opened by wolkchen-cirrus over 6 years ago - 10 comments
Labels: status: confirmed bug, backend: ps, topic: hatch

GitHub / matplotlib/matplotlib issues and pull requests