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From: Scott L. <sl...@sp...> - 2014-11-01 16:21:58
|
This works for me with python 3.4.2
import matplotlib.pyplot as plt
from io import BytesIO
import base64
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot([1,2,3])
sio = BytesIO()
fig.savefig(sio, format="png")
html = """<html><body>
<img src="data:image/png;base64,{}"/>
</body></html>""".format(base64.encodebytes(sio.getvalue()).decode())
For python 2.7.8 change html =""" to
html = """<html><body>
<img src="data:image/png;base64,%s"/>
</body></html>""" % base64.encodestring(sio.getvalue())
Best regards,
Scott
On Nov 1, 2014, at 7:37 AM, Julien Hillairet <jul...@gm...> wrote:
> Dear all,
> I'm trying to write a html page content in which a png figure is generated by matplotlib, with Python3.
> However, the following piece of code does not work with matplotlib/Python3 (while it should work with Python2). The error is the following on
> TypeError: string argument expected, got 'bytes'
> when on fig.savefig(sio, format="png")
> Could someone explain me how to do it ?
> Best regards,
> Julien
>
> --------------------------------------------
>
> import matplotlib.pyplot as plt
>
> from io import StringIO
> fig = plt.figure()
> ax = fig.add_subplot(111)
> ax.plot([1,2,3])
>
> sio = StringIO()
>
> fig.savefig(sio, format="png")
>
> html = """<html><body>
> ...a bunch of text and html here...
> <img src="data:image/png;base64,%s"/>
> ...more text and html...
> </body></html>""" % sio.getvalue().strip()
>
> ------------------------------------------------------------------------------
|
|
From: Benjamin R. <ben...@ou...> - 2014-11-01 14:13:51
|
Please post the entire traceback so that we can know the context of the error message. Also, exactly which versions of matplotlib and python are you using? Ben Root On Sat, Nov 1, 2014 at 7:37 AM, Julien Hillairet <jul...@gm... > wrote: > Dear all, > > I'm trying to write a html page content in which a png figure is generated > by matplotlib, with Python3. > > However, the following piece of code does not work with matplotlib/Python3 > (while it should work with Python2). The error is the following on > > TypeError: string argument expected, got 'bytes' > > when on fig.savefig(sio, format="png") > > > Could someone explain me how to do it ? > > Best regards, > > Julien > > -------------------------------------------- > > import matplotlib.pyplot as plt > > > from io import StringIO > > fig = plt.figure() > > ax = fig.add_subplot(111) > > ax.plot([1,2,3]) > > > sio = StringIO() > > > fig.savefig(sio, format="png") > > > html = """<html><body> > > ...a bunch of text and html here... > > <img src="data:image/png;base64,%s"/> > > ...more text and html... > > </body></html>""" % sio.getvalue().strip() > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > |
|
From: Julien H. <jul...@gm...> - 2014-11-01 11:37:09
|
Dear all, I'm trying to write a html page content in which a png figure is generated by matplotlib, with Python3. However, the following piece of code does not work with matplotlib/Python3 (while it should work with Python2). The error is the following on TypeError: string argument expected, got 'bytes' when on fig.savefig(sio, format="png") Could someone explain me how to do it ? Best regards, Julien -------------------------------------------- import matplotlib.pyplot as plt from io import StringIO fig = plt.figure() ax = fig.add_subplot(111) ax.plot([1,2,3]) sio = StringIO() fig.savefig(sio, format="png") html = """<html><body> ...a bunch of text and html here... <img src="data:image/png;base64,%s"/> ...more text and html... </body></html>""" % sio.getvalue().strip() |
|
From: Asma R. <asm...@gm...> - 2014-11-01 00:29:14
|
Hi, I have made a plot with grid arranged in 2 rows and 5 columns. I need to provide some spacing between the 3 heat maps so that the color bars don't overlap with the adjacent plots but at the same time I need 0 spacing between grid 1(tree),2(genome diagram) and 3(1st heat map). How can I achieve this? This link provides the plot I have made so far: http://stackoverflow.com/questions/26667972/padding-between-some-of-the-grid-spaces-and-and-none-between-others-matplotlib Here is the piece of code that I use to make the grid space: heatmapGS = gridspec.GridSpec(2,5,wspace=0.0,hspace=0.0,width_ratios=[0.60,0.90,1,1,1],height_ratios=[1,1,1,1,1]) (Sorry for posting it on both, I did not receive any good answers there hence attempting it here). Thanks, Asma |
