matplotlib-users Mailing List for matplotlib

On 2014年08月31日, 6:48 PM, John Ladasky wrote:
> Hi folks,
>
> I am trying to install Matplotlib 1.4.0 on an older laptop, running
> Ubuntu 12.04. I am committed to Python 3. In the standard Ubuntu
> repositories, python3-matplotlib (of any version) is unavailable until
> Ubuntu 13.04.
>
> My first instinct would be to upgrade to a more current Ubuntu
> revision. However, when I tried to upgrade Ubuntu, I received a warning
> that the Unity3D GUI was probably too heavy-weight for my machine.
My recommendation is to switch to Xubuntu 14.04 if/when you can manage 
the disruption of doing a clean installation.
> Traceback (most recent call last):
> File "setup.py", line 154, in <module>
> result = package.check()
> File "/home/john/Desktop/matplotlib-1.4.0/setupext.py", line 940, in
> check
> if 'No such file or directory\ngrep:' in version:
> TypeError: argument of type 'NoneType' is not iterable
>
This is a bug in 1.4.0 that has been fixed in 1.4.x.
Eric

On 08/31/2014 09:48 PM, John Ladasky wrote:
> Hi folks,
>
> I am trying to install Matplotlib 1.4.0 on an older laptop, running 
> Ubuntu 12.04. I am committed to Python 3. In the standard Ubuntu 
> repositories, python3-matplotlib (of any version) is unavailable until 
> Ubuntu 13.04.
[snip]
OK. Problem solved. I succeeded in building and installing Matplotlib. 
It looks like I don't have any backends installed, but I'll fix that next.
I had freetype12 installed, but NOT freetype-dev. I figured this out by 
looking at the source code of setupext.py. Ordinarily I get more 
descriptive error messages when a Matplotlib build fails. Even if 
they're coming from the C++ compiler, I get the name of the file which 
triggered the error, and it is usually related to the name of the broken 
package.

Hi folks,
I am trying to install Matplotlib 1.4.0 on an older laptop, running 
Ubuntu 12.04. I am committed to Python 3. In the standard Ubuntu 
repositories, python3-matplotlib (of any version) is unavailable until 
Ubuntu 13.04.
My first instinct would be to upgrade to a more current Ubuntu 
revision. However, when I tried to upgrade Ubuntu, I received a warning 
that the Unity3D GUI was probably too heavy-weight for my machine.
I have read the matplotlib 1.4.0 documentation and, according to the 
dependencies information contained there, it looks like I should be able 
to get matplotlib 1.4.0 to run on my machine if I take the trouble to 
install the dependencies manually. I have done this before, on other 
machines.
I thought that I followed the directions 
(http://matplotlib.org/users/installing.html) correctly. I believe that 
I have installed all the required dependencies, and I have even 
installed some of the optional ones I do not need. Something is still 
wrong. Here's my latest build error log from the console:
xxxx@xxxxxxxxxx:~/Desktop/matplotlib-1.4.0$ python3 setup.py build
============================================================================
Edit setup.cfg to change the build options
BUILDING MATPLOTLIB
 matplotlib: yes [1.4.0]
 python: yes [3.2.3 (default, Feb 27 2014, 21:33:50) [GCC
 4.6.3]]
 platform: yes [linux2]
REQUIRED DEPENDENCIES AND EXTENSIONS
 numpy: yes [version 1.6.1]
 six: yes [using six version 1.7.3]
 dateutil: yes [using dateutil version 2.0]
 tornado: yes [using tornado version 2.1]
 pyparsing: yes [using pyparsing version 2.0.2]
 pycxx: yes [Official versions of PyCXX are not compatible
 with Python 3.x. Using local copy]
 libagg: yes [pkg-config information for 'libagg' could not
 be found. Using local copy.]
Traceback (most recent call last):
 File "setup.py", line 154, in <module>
 result = package.check()
 File "/home/john/Desktop/matplotlib-1.4.0/setupext.py", line 940, in 
check
 if 'No such file or directory\ngrep:' in version:
TypeError: argument of type 'NoneType' is not iterable
The "required dependencies and extensions" section appears to be 
incomplete. I am expecting to see the installer check for freetype and 
png next. It never gets there.
A Python TypeError is being generated. My first thought would be that I 
have a Py2/Py3 compatibility issue, and I would immediately think of the 
_six_ package as the source of the problem. But maybe it's something else?
Any advice would be appreciated. Thanks.