After conda update, python kernel crashes when matplotlib is used
Update 2021-11-06
- The default
pkgs/main
channel forconda
has reverted to usingfreetype 2.10.4
for Windows, per main / packages / freetype. - If you are still experiencing the issue, use
conda list freetype
to check the version:freetype != 2.11.0
- If it is 2.11.0, then change the version per the solution, or
conda update --all
(providing your default channel isn't changed in the.condarc
config file).
- If it is 2.11.0, then change the version per the solution, or
Solution
- If this is occurring after installing Anaconda, updating
conda
orfreetype
since Oct 27, 2021. - Go to the
Anaconda
prompt and downgradefreetype 2.11.0
in any affected environment.conda install freetype=2.10.4
- Relevant to any package using
matplotlib
and any IDE- For example,
pandas.DataFrame.plot
andseaborn
- Jupyter, Spyder, VSCode, PyCharm, command line.
- For example,
Discovery
- An issue occurs after updating with the most current updates from
conda
, released Friday, Oct 29. - After updating with
conda update --all
, there's an issue with anything related tomatplotlib
in any IDE (not justJupyter
).- I tested this in
JupyterLab
,PyCharm
, andpython
from the command prompt. - PyCharm:
Process finished with exit code -1073741819
- JupyterLab: kernel just restarts and there are no associated errors or Traceback
- command prompt: a blank interactive matplotlib window will appear briefly, and then a new command line appears.
- I tested this in
- The issue seems to be with
conda update --all
in(base)
, then any plot API that usesmatplotlib
(e.g.seaborn
andpandas.DataFrame.plot
) kills the kernel in any environment. - I had to reinstall Anaconda, but do not do an update of
(base)
, then my other environments worked. - I have not figured out what specifically is causing the issue.
- I tested the issue with
python 3.8.12
andpython 3.9.7
- Current Testing:
- Following is the
conda
revision log. - Prior to
conda update --all
this environment was working, but after the updates, plotting withmatplotlib
crashes the python kernel
- Following is the
2021-10-31 10:47:22 (rev 3)
bokeh {2.3.3 (defaults/win-64) -> 2.4.1 (defaults/win-64)}
click {8.0.1 (defaults/noarch) -> 8.0.3 (defaults/noarch)}
filelock {3.0.12 (defaults/noarch) -> 3.3.1 (defaults/noarch)}
freetype {2.10.4 (defaults/win-64) -> 2.11.0 (defaults/win-64)}
imagecodecs {2021.6.8 (defaults/win-64) -> 2021.8.26 (defaults/win-64)}
joblib {1.0.1 (defaults/noarch) -> 1.1.0 (defaults/noarch)}
lerc {2.2.1 (defaults/win-64) -> 3.0 (defaults/win-64)}
more-itertools {8.8.0 (defaults/noarch) -> 8.10.0 (defaults/noarch)}
pyopenssl {20.0.1 (defaults/noarch) -> 21.0.0 (defaults/noarch)}
scikit-learn {0.24.2 (defaults/win-64) -> 1.0.1 (defaults/win-64)}
statsmodels {0.12.2 (defaults/win-64) -> 0.13.0 (defaults/win-64)}
sympy {1.8 (defaults/win-64) -> 1.9 (defaults/win-64)}
tqdm {4.62.2 (defaults/noarch) -> 4.62.3 (defaults/noarch)}
xlwings {0.24.7 (defaults/win-64) -> 0.24.9 (defaults/win-64)}
- The issue seems to be
freetype
- Downgrading from
2.11.0
to2.10.4
resolved the issue and made the environment work withmatplotlib
- Downgrading from
- Went to post a bug report and discovered there is [Bug]: Matplotlib crashes Python #21511
spyder's kernel dies when I try to make a plot
This is likely a duplicate of my problem.
Spyder 5.1.5 creates a new kernel after running a custom function
There is a potential solution in my answers. Otherwise, you can also downgrade freetype from 2.11.0 to 2.10.4 by doing conda install freetype=2.10.4
as suggested by Eheran1 in this GitHub post.
https://github.com/spyder-ide/spyder/issues/16659
Spyder 5.1.5 creates a new kernel after running a custom function
Possible solution: The problem seems to be with the newest matplotlib
function (3.4.3), when I downgraded matplotlib to 3.3.4 again the kernel problem no longer occured.
Solution: Downgrade freetype from 2.11.0 to 2.10.4 by doing conda install freetype=2.10.4
.
Python: matplotlib.pyplot.show() is not showing the plot
As of late, conda and matplotlib
have been having issues.
You can try to downgrade freetype from 2.11.0 to 2.10.4 by doing conda install freetype=2.10.4
Related Topics
Python Equivalent of Ruby's 'Method_Missing'
And' (Boolean) VS '&' (Bitwise) - Why Difference in Behavior with Lists VS Numpy Arrays
Visibility of Global Variables in Imported Modules
Pandas Get Topmost N Records Within Each Group
Python For-In Loop Preceded by a Variable
How to Print a Variable Name in Python
What Are the Differences Between the Urllib, Urllib2, Urllib3 and Requests Module
How to Emulate a Do-While Loop
Calling Parent Class _Init_ with Multiple Inheritance, What's the Right Way
Print List Without Brackets in a Single Row
"Ssl Module in Python Is Not Available" When Installing Package with Pip3
Custom Sorting in Pandas Dataframe
Are Python Variables Pointers? or Else, What Are They
Security of Python's Eval() on Untrusted Strings
Extracting Just Month and Year Separately from Pandas Datetime Column