[Bug]: Matplotlib crashes kernel on fresh (windows) install #30501
Description
Bug summary
Hello,
I recently encountered a problem whereby Matplotlib crashes the jupyter kernel on my windows machine. I can reproduce it in a fresh environment.
Code for reproduction
Steps:
- Install python from miniforge
- Install jupyter and matplotlib with
mamba install jupyter notebook matplotlib - In a new notebook, run the following:
import matplotlib.pyplot as plt
plt.plot([0, 1], [0, 1])Actual outcome
I see the following text below the notebook cell:
[<matplotlib.lines.Line2D at 0x15c107bafd0>]
And then after a few seconds a message pops up saying:
The kernel appears to have died. It will restart automatically.
I see no debug messages or anything else to help diagnose the problem.
Expected outcome
A simple matplotlib plot to appear, with a line between (0, 0) and (1, 1).
Additional information
This worked until very recently. Below are the installed packages listed by mamba list:
Name Version Build Channel
--------------------------------------------------------------------------------------------
_openmp_mutex 4.5 2_gnu conda-forge
_python_abi3_support 1.0 hd8ed1ab_2 conda-forge
anyio 4.10.0 pyhe01879c_0 conda-forge
argon2-cffi 25.1.0 pyhd8ed1ab_0 conda-forge
argon2-cffi-bindings 25.1.0 py313h5ea7bf4_0 conda-forge
arrow 1.3.0 pyhd8ed1ab_1 conda-forge
asttokens 3.0.0 pyhd8ed1ab_1 conda-forge
async-lru 2.0.5 pyh29332c3_0 conda-forge
attrs 25.3.0 pyh71513ae_0 conda-forge
babel 2.17.0 pyhd8ed1ab_0 conda-forge
beautifulsoup4 4.13.5 pyha770c72_0 conda-forge
bleach 6.2.0 pyh29332c3_4 conda-forge
bleach-with-css 6.2.0 h82add2a_4 conda-forge
brotli 1.1.0 hfd05255_4 conda-forge
brotli-bin 1.1.0 hfd05255_4 conda-forge
brotli-python 1.1.0 py313hfe59770_4 conda-forge
bzip2 1.0.8 h2466b09_7 conda-forge
ca-certificates 2025.8.3 h4c7d964_0 conda-forge
cached-property 1.5.2 hd8ed1ab_1 conda-forge
cached_property 1.5.2 pyha770c72_1 conda-forge
cairo 1.18.4 h5782bbf_0 conda-forge
certifi 2025.8.3 pyhd8ed1ab_0 conda-forge
cffi 1.17.1 py313ha7868ed_0 conda-forge
charset-normalizer 3.4.3 pyhd8ed1ab_0 conda-forge
colorama 0.4.6 pyhd8ed1ab_1 conda-forge
comm 0.2.3 pyhe01879c_0 conda-forge
contourpy 1.3.3 py313hf069bd2_2 conda-forge
cpython 3.13.5 py313hd8ed1ab_102 conda-forge
cycler 0.12.1 pyhd8ed1ab_1 conda-forge
debugpy 1.8.16 py313h927ade5_0 conda-forge
decorator 5.2.1 pyhd8ed1ab_0 conda-forge
defusedxml 0.7.1 pyhd8ed1ab_0 conda-forge
double-conversion 3.3.1 he0c23c2_0 conda-forge
exceptiongroup 1.3.0 pyhd8ed1ab_0 conda-forge
executing 2.2.0 pyhd8ed1ab_0 conda-forge
font-ttf-dejavu-sans-mono 2.37 hab24e00_0 conda-forge
font-ttf-inconsolata 3.000 h77eed37_0 conda-forge
font-ttf-source-code-pro 2.038 h77eed37_0 conda-forge
font-ttf-ubuntu 0.83 h77eed37_3 conda-forge
fontconfig 2.15.0 h765892d_1 conda-forge
fonts-conda-ecosystem 1 0 conda-forge
fonts-conda-forge 1 0 conda-forge
fonttools 4.59.2 py313hd650c13_0 conda-forge
fqdn 1.5.1 pyhd8ed1ab_1 conda-forge
freetype 2.13.3 h57928b3_1 conda-forge
graphite2 1.3.14 hac47afa_2 conda-forge
h11 0.16.0 pyhd8ed1ab_0 conda-forge
h2 4.3.0 pyhcf101f3_0 conda-forge
harfbuzz 11.4.4 h5f2951f_0 conda-forge
hpack 4.1.0 pyhd8ed1ab_0 conda-forge
httpcore 1.0.9 pyh29332c3_0 conda-forge
httpx 0.28.1 pyhd8ed1ab_0 conda-forge
hyperframe 6.1.0 pyhd8ed1ab_0 conda-forge
icu 75.1 he0c23c2_0 conda-forge
idna 3.10 pyhd8ed1ab_1 conda-forge
importlib-metadata 8.7.0 pyhe01879c_1 conda-forge
ipykernel 6.30.1 pyh3521513_0 conda-forge
ipython 9.5.0 pyh6be1c34_0 conda-forge
ipython_genutils 0.2.0 pyhd8ed1ab_2 conda-forge
ipython_pygments_lexers 1.1.1 pyhd8ed1ab_0 conda-forge
ipywidgets 8.1.7 pyhd8ed1ab_0 conda-forge
isoduration 20.11.0 pyhd8ed1ab_1 conda-forge
jedi 0.19.2 pyhd8ed1ab_1 conda-forge
jinja2 3.1.6 pyhd8ed1ab_0 conda-forge
json5 0.12.1 pyhd8ed1ab_0 conda-forge
jsonpointer 3.0.0 py313hfa70ccb_1 conda-forge
jsonschema 4.25.1 pyhe01879c_0 conda-forge
jsonschema-specifications 2025.4.1 pyh29332c3_0 conda-forge
jsonschema-with-format-nongpl 4.25.1 he01879c_0 conda-forge
jupyter 1.1.1 pyhd8ed1ab_1 conda-forge
jupyter-lsp 2.3.0 pyhcf101f3_0 conda-forge
jupyter_client 8.6.3 pyhd8ed1ab_1 conda-forge
jupyter_console 6.6.3 pyhd8ed1ab_1 conda-forge
jupyter_core 5.8.1 pyh5737063_0 conda-forge
jupyter_events 0.12.0 pyh29332c3_0 conda-forge
jupyter_server 2.17.0 pyhcf101f3_0 conda-forge
jupyter_server_terminals 0.5.3 pyhd8ed1ab_1 conda-forge
jupyterlab 4.4.6 pyhd8ed1ab_0 conda-forge
jupyterlab_pygments 0.3.0 pyhd8ed1ab_2 conda-forge
jupyterlab_server 2.27.3 pyhd8ed1ab_1 conda-forge
jupyterlab_widgets 3.0.15 pyhd8ed1ab_0 conda-forge
kiwisolver 1.4.9 py313h1a38498_1 conda-forge
krb5 1.21.3 hdf4eb48_0 conda-forge
lark 1.2.2 pyhd8ed1ab_1 conda-forge
lcms2 2.17 hbcf6048_0 conda-forge
lerc 4.0.0 h6470a55_1 conda-forge
libblas 3.9.0 34_h5709861_mkl conda-forge
libbrotlicommon 1.1.0 hfd05255_4 conda-forge
libbrotlidec 1.1.0 hfd05255_4 conda-forge
libbrotlienc 1.1.0 hfd05255_4 conda-forge
libcblas 3.9.0 34_h2a3cdd5_mkl conda-forge
libclang13 21.1.0 default_hadf22e1_0 conda-forge
libdeflate 1.24 h76ddb4d_0 conda-forge
libexpat 2.7.1 hac47afa_0 conda-forge
libffi 3.4.6 h537db12_1 conda-forge
libfreetype 2.13.3 h57928b3_1 conda-forge
libfreetype6 2.13.3 h0b5ce68_1 conda-forge
libgcc 15.1.0 h1383e82_4 conda-forge
libglib 2.84.3 h1c1036b_0 conda-forge
libgomp 15.1.0 h1383e82_4 conda-forge
libhwloc 2.12.1 default_h88281d1_1000 conda-forge
libiconv 1.18 hc1393d2_2 conda-forge
libintl 0.22.5 h5728263_3 conda-forge
libjpeg-turbo 3.1.0 h2466b09_0 conda-forge
liblapack 3.9.0 34_hf9ab0e9_mkl conda-forge
liblzma 5.8.1 h2466b09_2 conda-forge
libmpdec 4.0.0 h2466b09_0 conda-forge
libpng 1.6.50 h7351971_1 conda-forge
libsodium 1.0.20 hc70643c_0 conda-forge
libsqlite 3.50.4 hf5d6505_0 conda-forge
libtiff 4.7.0 h550210a_6 conda-forge
libwebp-base 1.6.0 h4d5522a_0 conda-forge
libwinpthread 12.0.0.r4.gg4f2fc60ca h57928b3_9 conda-forge
libxcb 1.17.0 h0e4246c_0 conda-forge
libxml2 2.13.8 h741aa76_1 conda-forge
libxslt 1.1.43 h25c3957_0 conda-forge
libzlib 1.3.1 h2466b09_2 conda-forge
llvm-openmp 21.1.0 hfa2b4ca_0 conda-forge
markupsafe 3.0.2 py313hb4c8b1a_1 conda-forge
matplotlib 3.10.5 py313hfa70ccb_0 conda-forge
matplotlib-base 3.10.5 py313he1ded55_0 conda-forge
matplotlib-inline 0.1.7 pyhd8ed1ab_1 conda-forge
mistune 3.1.4 pyhcf101f3_0 conda-forge
mkl 2024.2.2 h57928b3_16 conda-forge
munkres 1.1.4 pyhd8ed1ab_1 conda-forge
nbclassic 1.3.1 pyhe01879c_0 conda-forge
nbclient 0.10.2 pyhd8ed1ab_0 conda-forge
nbconvert-core 7.16.6 pyh29332c3_0 conda-forge
nbformat 5.10.4 pyhd8ed1ab_1 conda-forge
nest-asyncio 1.6.0 pyhd8ed1ab_1 conda-forge
notebook 7.4.5 pyhd8ed1ab_0 conda-forge
notebook-shim 0.2.4 pyhd8ed1ab_1 conda-forge
numpy 2.3.2 py313hce7ae62_2 conda-forge
openjpeg 2.5.3 h24db6dd_1 conda-forge
openssl 3.5.2 h725018a_0 conda-forge
overrides 7.7.0 pyhd8ed1ab_1 conda-forge
packaging 25.0 pyh29332c3_1 conda-forge
pandocfilters 1.5.0 pyhd8ed1ab_0 conda-forge
parso 0.8.5 pyhcf101f3_0 conda-forge
pcre2 10.45 h99c9b8b_0 conda-forge
pickleshare 0.7.5 pyhd8ed1ab_1004 conda-forge
pillow 11.3.0 py313h641beac_0 conda-forge
pip 25.2 pyh145f28c_0 conda-forge
pixman 0.46.4 h5112557_1 conda-forge
platformdirs 4.4.0 pyhcf101f3_0 conda-forge
prometheus_client 0.22.1 pyhd8ed1ab_0 conda-forge
prompt-toolkit 3.0.52 pyha770c72_0 conda-forge
prompt_toolkit 3.0.52 hd8ed1ab_0 conda-forge
psutil 7.0.0 py313h5ea7bf4_1 conda-forge
pthread-stubs 0.4 h0e40799_1002 conda-forge
pure_eval 0.2.3 pyhd8ed1ab_1 conda-forge
pycparser 2.22 pyh29332c3_1 conda-forge
pygments 2.19.2 pyhd8ed1ab_0 conda-forge
pyparsing 3.2.3 pyhe01879c_2 conda-forge
pyside6 6.9.2 py313hd8d090c_1 conda-forge
pysocks 1.7.1 pyh09c184e_7 conda-forge
python 3.13.5 h7de537c_102_cp313 conda-forge
python-dateutil 2.9.0.post0 pyhe01879c_2 conda-forge
python-fastjsonschema 2.21.2 pyhe01879c_0 conda-forge
python-gil 3.13.5 h4df99d1_102 conda-forge
python-json-logger 2.0.7 pyhd8ed1ab_0 conda-forge
python_abi 3.13 8_cp313 conda-forge
pytz 2025.2 pyhd8ed1ab_0 conda-forge
pywin32 311 py313h40c08fc_1 conda-forge
pywinpty 2.0.15 py313h5813708_0 conda-forge
pyyaml 6.0.2 py313hb4c8b1a_2 conda-forge
pyzmq 27.0.2 py312hbb5da91_2 conda-forge
qhull 2020.2 hc790b64_5 conda-forge
qt6-main 6.9.2 h236c7cd_0 conda-forge
referencing 0.36.2 pyh29332c3_0 conda-forge
requests 2.32.5 pyhd8ed1ab_0 conda-forge
rfc3339-validator 0.1.4 pyhd8ed1ab_1 conda-forge
rfc3986-validator 0.1.1 pyh9f0ad1d_0 conda-forge
rfc3987-syntax 1.1.0 pyhe01879c_1 conda-forge
rpds-py 0.27.1 py313hfbe8231_0 conda-forge
send2trash 1.8.3 pyh5737063_1 conda-forge
setuptools 80.9.0 pyhff2d567_0 conda-forge
six 1.17.0 pyhe01879c_1 conda-forge
sniffio 1.3.1 pyhd8ed1ab_1 conda-forge
soupsieve 2.8 pyhd8ed1ab_0 conda-forge
stack_data 0.6.3 pyhd8ed1ab_1 conda-forge
tbb 2021.13.0 h18a62a1_3 conda-forge
terminado 0.18.1 pyh5737063_0 conda-forge
tinycss2 1.4.0 pyhd8ed1ab_0 conda-forge
tk 8.6.13 h2c6b04d_2 conda-forge
tomli 2.2.1 pyhe01879c_2 conda-forge
tornado 6.5.2 py313h5ea7bf4_0 conda-forge
traitlets 5.14.3 pyhd8ed1ab_1 conda-forge
types-python-dateutil 2.9.0.20250822 pyhd8ed1ab_0 conda-forge
typing-extensions 4.15.0 h396c80c_0 conda-forge
typing_extensions 4.15.0 pyhcf101f3_0 conda-forge
typing_utils 0.1.0 pyhd8ed1ab_1 conda-forge
tzdata 2025b h78e105d_0 conda-forge
ucrt 10.0.26100.0 h57928b3_0 conda-forge
uri-template 1.3.0 pyhd8ed1ab_1 conda-forge
urllib3 2.5.0 pyhd8ed1ab_0 conda-forge
vc 14.3 h41ae7f8_31 conda-forge
vc14_runtime 14.44.35208 h818238b_31 conda-forge
vcomp14 14.44.35208 h818238b_31 conda-forge
wcwidth 0.2.13 pyhd8ed1ab_1 conda-forge
webcolors 24.11.1 pyhd8ed1ab_0 conda-forge
webencodings 0.5.1 pyhd8ed1ab_3 conda-forge
websocket-client 1.8.0 pyhd8ed1ab_1 conda-forge
widgetsnbextension 4.0.14 pyhd8ed1ab_0 conda-forge
win_inet_pton 1.1.0 pyh7428d3b_8 conda-forge
winpty 0.4.3 4 conda-forge
xorg-libxau 1.0.12 h0e40799_0 conda-forge
xorg-libxdmcp 1.1.5 h0e40799_0 conda-forge
yaml 0.2.5 h6a83c73_3 conda-forge
zeromq 4.3.5 ha9f60a1_7 conda-forge
zipp 3.23.0 pyhd8ed1ab_0 conda-forge
zstandard 0.23.0 py313h5ea7bf4_3 conda-forge
zstd 1.5.7 hbeecb71_2 conda-forge
Operating system
Windows 11
Matplotlib Version
3.10.5
Matplotlib Backend
module://matplotlib_inline.backend_inline
Python version
3.13.5
Jupyter version
7.4.5
Installation
conda