[Matplotlib-users] libfreetype issues on Mac OSX Big Sur

[Scott Lasley]

Does updating freetype with

conda update freetype

fix the problem?  On my Mac running macOS 11.2 conda list freetype shows 
# Name                    Version                   Build  Channel
freetype                  2.10.4               ha233b18_0  

and otool -L ~/opt/anaconda3/lib/libfreetype.6.dylib returns
~/opt/anaconda3/lib/libfreetype.6.dylib:
	@rpath/libfreetype.6.dylib (compatibility version 24.0.0, current version 24.4.0)

Hth,
Scott

> On Feb 1, 2021, at 17:38, Samuel Dupree <sdupree at speakeasy.net> wrote:
> 
> I'm running Matplotlib ver. 3.3.4 under the Anaconda distribution for Python 3.8.5 on a Mac OS X ver. 11.2. I am getting the following error:
> 
> 
> Traceback (most recent call last):
>   File "temp.py", line 9, in <module>
>     import matplotlib.pyplot as plt
>   File "/Users/user/opt/anaconda3/lib/python3.8/site-packages/matplotlib/__init__.py", line 174, in <module>
>     _check_versions()
>   File "/Users/user/opt/anaconda3/lib/python3.8/site-packages/matplotlib/__init__.py", line 159, in _check_versions
>     from . import ft2font
> ImportError: dlopen(/Users/user/opt/anaconda3/lib/python3.8/site-packages/matplotlib/ft2font.cpython-38-darwin.so, 2): Library not loaded: @rpath/libfreetype.6.dylib
>   Referenced from: /Users/user/opt/anaconda3/lib/python3.8/site-packages/matplotlib/ft2font.cpython-38-darwin.so
>   Reason: Incompatible library version: ft2font.cpython-38-darwin.so requires version 24.0.0 or later, but libfreetype.6.dylib provides version 23.0.0
> (base) user at Mac-Pro ~ %
> 
> 
> The python script being used is
> 
> 
> #!/Users/user/opt/anaconda3/bin/python
> 
> """
> Spyder Editor
> 
> This is a temporary script file.
> """
> 
> import matplotlib.pyplot as plt
> import numpy as np
> 
> plt.style.use("ggplot")
> 
> t = np.arange(0.0, 2.0, 0.1)
> s = np.sin(2 * np.pi * t)
> s2 = np.cos(2 * np.pi * t)
> plt.plot(t, s, "o-", lw=4.1)
> plt.plot(t, s2, "o-", lw=4.1)
> plt.xlabel("time (s)")
> plt.ylabel("Voltage (mV)")
> plt.title("Simple plot $\\frac{\\alpha}{2}$")
> plt.grid(True)
> 
> plt.savefig("test.png")
> 
> plt.show()
> 
> 
> Any ideas?
> 
> 
> Sam Dupree.
> 
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