This post assumes you are using version 3.0.3.
The library that we will use in this tutorial to create graphs is Python’s matplotlib.
Python install matplotlib cygwin full#
This tutorial explains the core concepts of Matplotlib so that one can explore its full potential. While it is easy to generate a plot using a few lines of code, it may be difficult to comprehend what actually goes on in the back-end of this library. Matplotlib is a huge library, which can be a bit overwhelming for a beginner - even if one is fairly comfortable with Python. Given the popularity of Python as a language for data analysis, this tutorial focuses on creating graphs using a popular Python library - Matplotlib. A variety of graphing tools have developed over the past few years. A critical part of data analysis is visualization. I suspect these are harmless as well, but I don't really know c++ so I can't tell what it's complaining about.You generate a huge amount of data on a daily basis. CXX/Extensions.hxx:477: warning: right-hand operand of comma has no effect Src/_transforms.h:57: instantiated from here CXX/Extensions.hxx: In constructor `Py::PythonExtension::PythonExtension() ':
Python install matplotlib cygwin series#
There are a bunch of warnings that one might be using variables uninitialized (which I'm ignoring as compiler whining), and a series of warning like this: The VERBOSE setting will generate lots of extra output and may help If that shed additional light, again flush the build and install dirs,Īnd try setting VERBOSE=True in setup.py before doing a clean install. Import matplotlib.backends._ns_backend_agg # for numpyĪll of them simply dump to the command line (though I only tried Numeric, not numpy or numarray). Import matplotlib.backends._nc_backend_agg # for Numeric Import matplotlib.backends._na_backend_agg # for numarray #one of these three depending on which numerix package you are using Try importing these packages individually I always wipe the install and build directories before installing a new version. Installing a new version overĪ pretty old version has been known to cause trouble, segfault, etc. Any idea what's going wrong, or suggestions about where to start hacking?įirst thing to try is simply rm -rf the site-packages/matplotlib andīuild subdirs and get a clean install. Note that "import matplotlib" appears to work, but "import matplotlib.pylab" does not. I believe this is a problem with cygwin, because a year or so ago I installed matplotlib-0.74 with Numeric-24.0 and it worked fine. I've tried this with Numeric 24.2, Numeric 24.0, numpy 0.9.6, matplotlib svn, matplotlib-0.86, and matplotlib-0.74 all give the same result. Se', 'pytz.bisect', 'distutils.sys', 'os', 'strop'] Matplotlib.shutil', 'posix', 'encodings.aliases', 'sets', 'exceptions', 'sre_par , 'matplotlib.distutils', 'signal', 'distutils.errors', 'random', 'linecache', ' Types', 'md5', 'matplotlib.dateutil', 'matplotlib.os', 'thread', 'sre', 'bisect' Tplotlib._future_', 'codecs', 'distutils.re', 'readline', 'matplotlib.pytz', ' Matplotlib.sys', 'matplotlib', 'distutils.os', 'sys', 'pytz.tzinfo', 'pytz', 'ma Port', 'string', 'warnings', 'encodings.types', 'UserDict', 'encodings.ascii', ' Sysconfig', 'encodings.exceptions', 'ts', 'math', 'fcntl', 'stat', 'zipim Onstants', 're', 'matplotlib.md5', 'os.path', 'pytz.sys', '_codecs', 'distutils. Matplotlib.re', 'matplotlib.tempfile', 'encodings', 'pytz.datetime', 'shutil', 'ĭistutils.string', 'dateutil', 'matplotlib.datetime', 'posixpath', '_random', 'tĮmpfile', 'errno', 'matplotlib.warnings', 'binascii', 'decs', 'sre_c Loaded modules: ['pylab', '_bisect', '_future_', 'copy_reg', 'sre_compile', 'd Loaded rc file /cygdrive/d/freedryk/.matplotlib/matplotlibrc
Type "help", "copyright", "credits" or "license" for more information. Let's show the whole thing in gory detail, shall we? ~ Setting verbose=debug-annoying doesn't add any information. Instant dump to the bash shell without error message. Execute "from pylab import *" inside python. Install cygwin, including gcc, python, and the libpng and libfreetype development packages.Ģ. Does anyone have any idea why matplotlib now crashes python under cygwin? Here's what I did:ġ.
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