Try to do a graph using python matplotlib: but keep getting the following waring message:
"UserWaring: tight_layout: falling back to Agg renderer warnings.warn("tight_layout: falling back to Agg renderer")
My code is below:
plt.legend(loc='upper left',prop = {'size':7},bbox_to_anchor=(1,1))
plt.tight_layout(pad=7)
plt.xlabel ('Build')
plt.ylabel ('Time/Sec')
plt.title ('Performance Test')
plt.grid()
plt.show()
How to fix that warning message?
1 Answer
Are you using MacOSX? It seems to be a known and open issue
I will suggest to reorganize the code such that you will use Figure instead of pyplot. You can get the Figure from plt.figure() method. Then, on the Figure instance call set_tight_layout(True). Try this example code:
import matplotlib
matplotlib.use('pdf')
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(1,1,1)
fig.set_tight_layout(True)
fig.savefig('asd.pdf') # No warning now
As a side note, have a look at matplotlib documentation
tight_layout() can take keyword arguments of pad, w_pad and h_pad. These control the extra padding around the figure border and between subplots. The pads are specified in fraction of fontsize.
This suggest that your code
plt.tight_layout(pad=7)
is wrong, as the value of pad should be between 0 and 1.
