matplotlib/basemap

Plot on map projections (with coastlines and political boundaries) using matplotlib

Stars: 817
Forks: 395
Open beginner issues: 0
Indexed issues: 110

Dominant language: Python
License: MIT
Last GitHub push: May 4, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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Python 3.14 wheels Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

matplotlib/basemap#652 · 2 comments · 5 reactions · Opened Mar 21, 2026
Could you allow packaging 26.0 ? Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

matplotlib/basemap#649 · 2 reactions · Opened Feb 5, 2026
Discrepancy in LCC (and maybe others) between Lat/Lon corners and Projected Map Boundary Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

matplotlib/basemap#646 · Opened Nov 21, 2025
Bump pkutils -- python 3.13/14 support Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

matplotlib/basemap#645 · 2 comments · Opened Oct 28, 2025
Test failures with pyshp 3.0.0 (AttributeError: 'tuple' object has no attribute 'tolist') Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

matplotlib/basemap#632 · Opened Aug 10, 2025
nightshade() on Robinson Projection and lon_0=-180 Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

matplotlib/basemap#610 · 2 comments · Opened Nov 22, 2024
[Bug]: Basemap drawgreatcircle generating gaps in Mercator projection Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

matplotlib/basemap#606 · 3 comments · Opened Aug 26, 2024
about projection Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#605 · 4 comments · Opened Aug 19, 2024
show a warning when projection is wrongly parameterized Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

matplotlib/basemap#585 · Opened Sep 3, 2023
Function "addcyclic": IndexError Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matplotlib/basemap#575 · 2 comments · Opened May 28, 2023
matplotlib basemap colorbar exception : Given element not contained in the stack Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

matplotlib/basemap#544 · 1 comment · Opened Jun 2, 2022
Enable flake8 Open

matplotlib/basemap#528 · 2 comments · 1 assignee · Opened Dec 29, 2021
Plot sub-map by passing different extents to single basemap object Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

matplotlib/basemap#519 · 2 comments · Opened Jul 22, 2021
Flawed PDF save when using linewidth=0 in drawparallels() and drawmeridians() Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matplotlib/basemap#493 · Opened Jun 7, 2020
contourf on cylindrical projection with irregular latlon grid (tri=True) is calling shiftdata when it shouldn't Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matplotlib/basemap#492 · 2 comments · Opened May 31, 2020
Strange lines appear when using pcolormesh with nonzero alpha value Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matplotlib/basemap#480 · 2 comments · Opened Dec 23, 2019
zorder of drawmapboundary() gets on top of imshow() Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#474 · 2 comments · Opened Aug 21, 2019
is_land slow for multiple coordinates Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matplotlib/basemap#462 · 2 comments · Opened May 29, 2019
Hollow markers are not transparent Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

matplotlib/basemap#455 · 3 comments · Opened Mar 19, 2019
tissot going over the North Pole Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#451 · 1 comment · Opened Jan 15, 2019
Problem using Ortho projection and shadedrelief on a sector of the globe Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matplotlib/basemap#429 · Opened Oct 16, 2018
colorbar fill whole figure Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

matplotlib/basemap#426 · 13 comments · Opened Oct 1, 2018
Numerical precision issue in rotate_vector Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

matplotlib/basemap#417 · 1 reaction · Opened Aug 13, 2018
contour not closed across 0 meridian in polar projection Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

matplotlib/basemap#416 · 6 comments · Opened Aug 1, 2018
Why is matplotlib basemap not plotting the colours of some areas in my map? Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

matplotlib/basemap#411 · 2 comments · Opened Jun 19, 2018
readshapefile() inconsistencies Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

matplotlib/basemap#410 · 4 comments · Opened Jun 13, 2018
pcolormesh does not work with south pole ortho projection Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#409 · 1 comment · Opened Jun 5, 2018
Broken Examples Open

matplotlib/basemap#407 · 1 comment · 1 assignee · Opened May 29, 2018
Matplotlib Example Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matplotlib/basemap#389 · 9 comments · Opened Jan 25, 2018
Wrong Shapefiles over South America Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

matplotlib/basemap#387 · 8 comments · Opened Jan 18, 2018
MPL2.1 deprecation warning for axesPatch Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

matplotlib/basemap#382 · 19 comments · Opened Nov 20, 2017
fillcontinents and aeqd projection Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#381 · 2 comments · Opened Nov 13, 2017
Polygons and tissot across the edge in Mollweide: Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matplotlib/basemap#378 · 1 comment · Opened Nov 6, 2017
Contouring bug on lcc projection Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matplotlib/basemap#377 · Opened Oct 30, 2017
Broken Basemap rotpole projection Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

matplotlib/basemap#376 · Opened Oct 27, 2017
spurious horizontal contour lines depending on number of contour levels Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#371 · 8 comments · Opened Sep 21, 2017
Feature request: support for projected UTM EPSG codes Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#370 · 4 comments · Opened Sep 16, 2017
small bug in drawmapscale Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

matplotlib/basemap#368 · Opened Sep 8, 2017
Dymaxion / Fuller Projection? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

matplotlib/basemap#367 · 4 comments · Opened Sep 2, 2017
basemap plot the opposite longitudinal section Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

matplotlib/basemap#359 · 1 comment · Opened Jun 27, 2017
pcolormesh not plotting onto 'ortho' basemap Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

matplotlib/basemap#357 · 4 comments · Opened Jun 3, 2017
drawlsmask() not working for Python 3.4 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matplotlib/basemap#356 · 3 comments · Opened May 18, 2017
save_background example not working (anymore?) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matplotlib/basemap#353 · 3 comments · 1 reaction · Opened May 17, 2017
South Polar Stereographic Projection not producing right plot Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#350 · 2 comments · 1 reaction · Opened Apr 24, 2017
arcgisimage transparent argument suggestion Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

matplotlib/basemap#348 · Opened Mar 29, 2017
Cannot plot a simple map over Africa if lon_0 is not equal to zero Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

matplotlib/basemap#347 · 4 comments · 1 reaction · Opened Mar 28, 2017
Cropped world map outline with 1.1.0 Open

matplotlib/basemap#344 · 4 comments · 1 assignee · Opened Mar 2, 2017
Zooming on Basemap plots loses Axis Ticks Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

matplotlib/basemap#342 · 1 comment · Opened Feb 13, 2017
plotparallels()/plotmeridians() only support xoffset or yoffset not both and do not support horizontalalignment or verticalalignment Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

matplotlib/basemap#325 · Opened Nov 2, 2016
Fail on basemap.drawcounties() Python 3.5.2 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

matplotlib/basemap#324 · 23 comments · 3 reactions · Opened Oct 12, 2016

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