Mailman 3 February 2021 - Matplotlib-users

libfreetype issues on Mac OSX Big Sur
by Samuel Dupree April 26, 2021

April 26, 2021

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@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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How to continually open a matplotlib plot in the same location?
by Anthony Billings Feb. 26, 2021

Feb. 26, 2021

How to continually open a matplotlib plot in the same location? I've looked here<https://stackoverflow.com/questions/7449585/how-do-you-set-the-absolute-pos…> and here<https://stackoverflow.com/questions/7802366/matplotlib-window-layout-questi…> trying to figure out how to make my matplotlib plot open in the same window location EVERY TIME. I'm using TkAgg for my backend, and using the code below I can only get the FIRST plot to open in the set location. When the program loops back and runs this part again, then the plot opens in a different location. I'm using Windows 10, Python 3.7.7 64-bit through Visual Studio Code. fig = plt.figure(5) figManager = plt.get_current_fig_manager() figManager.window.wm_geometry("1000x600+0+0")

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No module named 'matplotlib.pyplot'; 'matplotlib' is not a package
by burakcan gokpinar Feb. 22, 2021

Feb. 22, 2021

I don’t know why this error is happen.I have already install matplotlin packets with pip.How can fix this error?(I use Windows ,python 3.8.7 and matplotlib 3.3.4 versions)

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Matplotlib canonical website
by Jody Klymak Feb. 16, 2021

Feb. 16, 2021

Hi all, hopefully this catches a fair number of downstream developers. Matplotlib’s canonical root is https://matplotlib.org/stable/ now. https://matplotlib.org/ still works, as do the versioned prefixes (i.e. https://matplotlib.org/3.2.0/), and the dev branch https://matplotlib.org/devdocs/index.html. However, the toplevel root is now a bunch of redirects, so link checkers will be upset. If you use inter-sphinx to build docs, that should also be changed. See and discuss at https://discourse.matplotlib.org/t/canonical-documentation-have-moved/21863 and of course please report any issues and we will try and fix. Cheers, Jody

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Re: [Matplotlib-users] legend not covering graphs
by swfiua＠gmail.com Feb. 16, 2021

Feb. 16, 2021

You can call legend as follows: plt.legend(loc=0) and it will place the legend where it obscures as little as possible.

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force legend to not cover graphs?
by Neal Becker Feb. 16, 2021

Feb. 16, 2021

Is there any automated way to enforce that legend will not hide graphs? I'm thinking by making additional space for legend as necessary. -- Those who don't understand recursion are doomed to repeat it

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libfreetype issues on Mac OSX Big Sur
by Samuel Dupree Feb. 2, 2021

Feb. 2, 2021

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@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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Interpolation method of python matplotlib contourf
by Athanasios Karagiannidis Feb. 2, 2021

Feb. 2, 2021

Hello to all I want to ask what is the default interpolation method of python matplotlib contourf? Where can I find relative documentation? Could someone help me? Best regards Sakis Athanasios F. Karagiannidis Physicist, PhD Meteorology and Climatology E-mail: thankar(a)live.com

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[ANN] Matplotlib 3.3.4
by Elliott Sales de Andrade Feb. 1, 2021

Feb. 1, 2021

Hi all, We are pleased to announce the release of 3.3.4. This is the fourth bug fix release of the 3.3.x series. Pre-built wheels are available for most major platforms, and can be installed using `pip install matplotlib==3.3.4`. Other packages may also be available already; please check with your preferred source. The 3.3.4 release represents the work of 7 authors over 20 pull requests, and we thank them for their contributions. This release contains several critical bug-fixes: * Fix WebAgg initialization. * Fix parsing |QT_API| setting with mixed case. * Fix build with link-time optimization disabled in environment. * Fix test compatibility with NumPy 1.20. * Fix test compatibility with pytest 6.2. For further details, please see the What's new in Matplotlib 3.3.4 page: https://matplotlib.org/3.3.4/users/whats_new.html and the milestone on GitHub: https://github.com/matplotlib/matplotlib/milestone/60?closed=1 The 3.3.3 release was not previously announced. Release details are provided below. The 3.3.3 release represents the work of 11 authors over 46 pull requests. This release contains several critical bug-fixes: * Fix calls to |Axis.grid| with argument |visible=True|. * Fix fully masked |imshow|. * Fix inconsistent color mapping in scatter for 3D plots. * Fix notebook/nbAgg figures when used with ipywidgets in the same cell. * Fix notebook/nbAgg/WebAgg on older (e.g., Firefox ESR) browsers. * Fix pcolormesh with |datetime| coordinates. * Fix performance regression with |datetime|s. * Fix singular ticks with small log ranges. * Fix timers/animations on wx and notebook backends. * Remove certifi as a hard runtime dependency. For further details, please see the What's new in Matplotlib 3.3.3 page: https://matplotlib.org/3.3.3/users/whats_new.html and the milestone on GitHub: https://github.com/matplotlib/matplotlib/milestone/58?closed=1 These releases are signed by my GPG key. The fingerprint is: 23CA B59E 3332 F94D 26BE F037 8D86 E7FA E5EB 0C10

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