Graph bar: color vs monochrome

[xanant]

I'm new to Spyder. I have a perhaps trivial request: after installing (a) Spyder 3.3.3 (with Anaconda and Python 2.7) I then switched to (b) Spyder 3.3.6 (Anaconda and Python 3.7) and I find myself with an oddity. By creating a very simple bar graph using 'matplotlib', in Spyder (a) the bars are drawn with different colors from one another while with Spyder (b) they are monochrome. Depends on what? From Python or from Spyder? I repeat I am a newbie and do not understand much of it so far. Thanks in advance if someone will have the patience to respond.

[Fergal Mullally]

Hi Xanant,

I'm not 100% sure, but i think there was a change to the default settings in a recent version of matplotlib. The newer versions of matplotlib do not support python 2.7, so anaconda installs an older version instead.

If you're new to python it usually makes sense to use python 3 only, major packages like matplotlib, numpy and scipy don't support python 2 anymore.

Fergal

On Fri, Nov 22, 2019, 3:43 PM xanant <sandrod...@gmail.com> wrote:

I'm new to Spyder. I have a perhaps trivial request: after installing (a) Spyder 3.3.3 (with Anaconda and Python 2.7) I then switched to (b) Spyder 3.3.6 (Anaconda and Python 3.7) and I find myself with an oddity. By creating a very simple bar graph using 'matplotlib', in Spyder (a) the bars are drawn with different colors from one another while with Spyder (b) they are monochrome. Depends on what? From Python or from Spyder? I repeat I am a newbie and do not understand much of it so far. Thanks in advance if someone will have the patience to respond.

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[xanant]

Hi Fergal
Thanks for the reply. I don't think I was too clear in the question. I was just wondering why matplotlib 2.2.3, Python 2.7 and Spyder 3.3.1 installed with Anaconda (2) produces color graphics while matplotlib 3.1.1, Python 3.7 and Spyder 3.3.6 installed with Anaconda (3) produce them only monochromatic. It would seem logical to me that the new 'matplotlib' provides the same effect also in the upgrade. I repeat, being newbie, maybe I still don't realize correctly. Following this, for the simple graphs I need (checks on a survey) I still use, for aesthetic reasons, the 'old' matplotlib.

To view this discussion on the web visit https://groups.google.com/d/msgid/spyderlib/CAPU23P7Rpmp5%3D-Tto3m%3Ds3y%3DuEpHWxBnFs-g%3DE4wRv4Usi85ZA%40mail.gmail.com.