Problem installing matplotlib on Edison

[GCay]

I am trying to install matplotlib on my Intel Edison board but I am taking errors. I installed Numpy and Spicy successfully but could not manage to install matplotlib.

I am getting this error

root@edisonwbl:~# pip install matplotlib 

Collecting matplotlib/usr/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject <span class="typ" style="font-style: inherit; font-weight: inherit...

[idata · Accepted solution]

Hello GCay,

Thanks for reaching out!I updated the version of pip in my Edison (same Yocto version as you) and it now provides me a more straight forward reason why it can't install matplotlib. I used pip install pip --upgrade to update my pip version and the libraries I'm missing are:freetype2 ( https://www.freetype.org/)libpng ( http://www.libpng.org/pub/png/libpng.html)I'd recommend you to download their source, build and install them on your Edison and then try again with the newer version of pip.Let us know how it goes.Pedro M.

[GCay]

I could not figure out how to install these libraries. I keep trying.

However, I tried to upgrade pip, after that I got this error.

root@edisonwbl:~# pip install matplotlib

Collecting matplotlib

/usr/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_ .py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may c ause the server to present an incorrect TLS certificate, which can cause validat ion failures. You can upgrade to a newer version of Python to solve this. For mo re information, see https://urllib3.readthedocs.io/en/latest/security.html# snimi ssingwarning.

SNIMissingWarning

/usr/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_ .py:122: InsecurePlatformWarning: A true SSLContext object is not available. Thi s prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.htm l# insecureplatformwarning.

InsecurePlatformWarning

Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connec tion broken by 'ReadTimeoutError("HTTPSConnectionPool(host='pypi.python.org', po rt=443): Read timed out. (read timeout=15)",)': /simple/matplotlib/

/usr/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_ .py:122: InsecurePlatformWarning: A true SSLContext object is not available. Thi s prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.htm l# insecureplatformwarning.

InsecurePlatformWarning

Could not find a version that satisfies the requirement matplotlib (from versi ons: )

No matching distribution found for matplotlib

[GCay]

For example, when I try configure for freetype2, I got this

root@edisonwbl:~/freetype-2.8# ls

CMakeLists.txt ChangeLog.23 Jamrules builds modules.cfg

ChangeLog ChangeLog.24 Makefile configure objs

ChangeLog.20 ChangeLog.25 README devel src

ChangeLog.21 ChangeLog.26 README.git docs version.sed

ChangeLog.22 Jamfile autogen.sh include vms_make.com

root@edisonwbl:~/freetype-2.8# cd configure

-sh: cd: configure: Not a directory

root@edisonwbl:~/freetype-2.8# python configure

File "configure", line 16

rm -f config.mk builds/unix/unix-def.mk builds/unix/unix-cc.mk

^

SyntaxError: invalid syntax

For libpng, I got this:

root@edisonwbl:~/libpng-1.6.30# python configure

File "configure", line 18

DUALCASE=1; export DUALCASE # for MKS sh

^

SyntaxError: invalid syntax

root@edisonwbl:~/libpng-1.6.30# python install-sh

File "install-sh", line 45

nl='

^

SyntaxError: EOL while scanning string literal

[idata]

That is strange, I updated pip and this is the error that I get:

root@PeterBB:~# pip install matplotlibCollecting matplotlib/usr/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html# snimissingwarning. SNIMissingWarning/usr/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html# insecureplatformwarning. InsecurePlatformWarning Using cached matplotlib-2.0.2.tar.gz Complete output from command python setup.py egg_info: ============================================================================ Edit setup.cfg to change the build options BUILDING MATPLOTLIB matplotlib: yes [2.0.2] python: yes [2.7.3 (default, Jun 6 2016, 13:14:10) [GCC 4.9.1]] platform: yes [linux2] REQUIRED DEPENDENCIES AND EXTENSIONS numpy: yes [not found. pip may install it below.] six: yes [six was not found.pip will attempt to install it after matplotlib.] dateutil: yes [dateutil was not found. It is required for date axis support. pip/easy_install may attempt to install it after matplotlib.] functools32: yes [functools32 was not found. It is required forPython versions prior to 3.2] subprocess32: yes [subprocess32 was not found. It used for Python versions prior to 3.2 to improves functionality on Linux and OSX] pytz: yes [pytz was not found. pip will attempt to install it after matplotlib.] cycler: yes [cycler was not found. pip will attempt to install it after matplotlib.] tornado: yes [tornado was not found. It is required for the WebAgg backend. pip/easy_install may attempt to install it after matplotlib.] pyparsing: yes [pyparsing was not found. It is required for mathtext support. pip/easy_install may attempt to install it after matplotlib.] libagg: yes [pkg-config information for 'libagg' could not be found. Using local copy.] freetype: no [The C/C++ header for freetype2 (ft2build.h) could not be found. You may need to install the development package.] png: no [pkg-config information for 'libpng' could not be found.] qhull: yes [pkg-config information for 'qhull' could not be found. Using local copy.] OPTIONAL SUBPACKAGES sample_data: yes [installing] toolkits: yes [installing] tests: no [skipping due to configuration] toolkits_tests: no [skipping due to configuration] OPTIONAL BACKEND EXTENSIONS macosx: no [Mac OS-X only] qt5agg: no [PyQt5 not found] qt4agg: no [PySide not found; PyQt4 not found] gtk3agg: no [Requires pygobject to be installed.] gtk3cairo: no [Requires cairocffi or pycairo to be installed.] gtkagg: no [Requires pygtk] tkagg: yes [installing; run-time loading from Python Tcl / Tk] wxagg: no [requires wxPython] gtk: no [Requires pygtk] agg: yes [installing] cairo: no [cairocffi or pycairo not found] windowing: no [Microsoft Windows only] OPTIONAL LATEX DEPENDENCIES dvipng: no ghostscript: no latex: no pdftops: no OPTIONAL PACKAGE DATA dlls: no [skipping due to configuration] ============================================================================ * The following required packages can not be built: * freetype, png ----------------------------------------Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-F_qkJK/matplotlib/As you can see, it does provide you the reason why it is failing. It is missing freetype2 ...

[GCay]

The difference between your error and mine is that you are taking this error after download while it is building the matplotlib but I am taking it while it is downloading the matplotlib. Can it be internet connection issue?

I used pip install pip --upgrade to upgrade and it said requirement already up-to-date.

[GCay]

Now, I got the same error with you. I think the first one was about a connection problem.

I still need to figure out how to install freetype2 and libpng though.

[GCay]

I found how to install these packages and after install them I successfully installed matplotlib too. Thanks for your help.

[idata]

Hi Gcay,

I'm glad to hear that!If you ever have any other question or doubt, please don't hesitate to come back to the community. We'll try to help you as much as we can.Pedro M.