Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.0k views
in Technique[技术] by (71.8m points)

runtime - matplotlib get rid of max_open_warning output

I wrote a script that calls functions from QIIME to build a bunch of plots among other things. Everything runs fine to completion, but matplotlib always throws the following feedback for every plot it creates (super annoying):

/usr/local/lib/python2.7/dist-packages/matplotlib/pyplot.py:412: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (matplotlib.pyplot.figure) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam figure.max_num_figures). max_open_warning, RuntimeWarning)

I found this page which seems to explain how to fix this problem , but after I follow directions, nothing changes:

import matplotlib as mpl
mpl.rcParams[figure.max_open_warning'] = 0

I went into the file after calling matplotlib directly from python to see which rcparams file I should be investigating and manually changed the 20 to 0. Still no change. In case the documentation was incorrect, I also changed it to 1000, and still am getting the same warning messages.

I understand that this could be a problem for people running on computers with limited power, but that isn't a problem in my case. How can I make this feedback go away permanently?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Try setting it this way:

import matplotlib as plt
plt.rcParams.update({'figure.max_open_warning': 0})

Not sure exactly why this works, but it mirrors the way I have changed the font size in the past and seems to fix the warnings for me.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...