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POWhy doesn't the save button work on a matplotlib plot?
 

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  1. POWhy doesn't the save button work on a matplotlib plot?
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    <p>I have <a href="http://matplotlib.sourceforge.net/" rel="nofollow noreferrer">matplotlib 1.0.0</a> installed in a Python 2.7 virtualenv on Mac OS X 10.6. I can create plots fine. However, whenever I press the <em>Save</em> button, I can't type text into the save dialog window nor can I save the plot. The only thing I can do is hit cancel. Any thoughts on what's causing this and how to fix it?</p> <p><img src="https://i.stack.imgur.com/oCwsw.jpg" alt="alt text"></p> <h2>Matplotlib installation procedure</h2> <p>I installed matplotlib by cloning <a href="http://github.com/astraw/matplotlib" rel="nofollow noreferrer">astraw's matplotlib github repository</a> and then loosely following <a href="http://blog.hyperjeff.net/?p=160" rel="nofollow noreferrer">HyperJeff's Installation Instructions for numpy/scipy/matplotlib</a>. Below are the potentially relevant sections of <code>setup.cfg</code> and <code>make.osx</code>, including the sections that I modified prior to compiling and installing.</p> <h3>setup.cfg</h3> <pre><code>[egg_info] tag_svn_revision = 1 [directories] basedirlist = /Users/matthew/.virtualenvs/matplotlib-test [status] #suppress = True #verbose = True [provide_packages] [gui_support] #gtk = False #gtkagg = False #tkagg = False wxagg = False #macosx = False [rc_options] backend = MacOSX #numerix = numpy </code></pre> <h3>make.osx</h3> <pre><code># build mpl into a local install dir with PREFIX=/Users/matthew/.virtualenvs/matplotlib-test MPLVERSION=1.0rc1 PYVERSION=2.7 PYTHON=python${PYVERSION} ZLIBVERSION=1.2.3 PNGVERSION=1.2.39 FREETYPEVERSION=2.3.11 MACOSX_DEPLOYMENT_TARGET=10.6 OSX_SDK_VER=10.6 ARCH_FLAGS="-arch i386-arch x86_64" ## You shouldn't need to configure past this point (but I did...) PKG_CONFIG_PATH="${PREFIX}/lib/pkgconfig" CFLAGS="${ARCH_FLAGS} -I${PREFIX}/include -I${PREFIX}/include/freetype2 -isysroot /Developer/SDKs/MacOSX${OSX_SDK_VER}.sdk" LDFLAGS="${ARCH_FLAGS} -L${PREFIX}/lib -syslibroot,/Developer/SDKs/MacOSX${OSX_SDK_VER}.sdk" PKG_CONFIG_PATH="${PREFIX}/lib/pkgconfig" CFLAGS="-arch i386 -arch x86_64 -I${PREFIX}/include -I${PREFIX}/include/freetype2 -isysroot /Developer/SDKs/MacOSX${OSX_SDK_VER}.sdk" LDFLAGS="-arch i386 -arch x86_64 -L${PREFIX}/lib -syslibroot,/Developer/SDKs/MacOSX${OSX_SDK_VER}.sdk" FFLAGS="-arch i386 -arch x86_64" </code></pre> <p>After modifying <code>setup.cfg</code> and <code>make.osx</code>, I issued the following commands to install matplotlib:</p> <pre><code>make -f make.osx fetch deps mpl_build mpl_install python setup.py install </code></pre> <p><em>Note:</em> <code>sudo</code> isn't required, since I'm installing into a virtualenv instead of into the site-packages like HyperJeff is doing.</p> <h2>Python Installation</h2> <p>I installed Python 2.7 using python.org's <em>Python 2.7 PPC/i386/x86-64 Mac OS X Installer Disk Image for Mac OS X 10.5</em>. Thanks to <a href="https://stackoverflow.com/questions/3472349/what-are-the-differences-between-the-two-python-2-7-mac-os-x-disk-image-installer/3472625#3472625">Ned Deily's answer to this SO question</a>, I know that this version of Python 2.7 cannot run IDLE or Tkinter on Mac OS X 10.6.</p> <h2>Questions</h2> <ol> <li>Could the version of Python 2.7 that I have installed be the cause of the problem? Should I reinstall Python 2.7 using the <em>Python 2.7 32-bit Mac OS X Installer Disk Image for Mac OS X 10.3 through 10.6</em>?</li> <li>Is there a different <code>gui_support</code> option that I need to configure in <code>setup.cfg</code> and then recompile matplotlib?</li> </ol> <h2>Update, September 13, 2010, 3:33 PM</h2> <p>It appears that other Mac OS X and matplotlib users are having the same problem. In the matplotlib-users mailing list, <a href="http://sourceforge.net/mailarchive/message.php?msg_name=3E234DB6-BD55-4F95-803E-EF0806E80371%40gmail.com" rel="nofollow noreferrer">two users reported having the same problem on Mac OS X 10.5</a>. Although, they were running matplotlib 0.99.1.1 and 0.99.1.2 versus matplotlib 1.0.0 that I have installed.</p> <h2>Updated, September 14, 2010, 8:18 AM</h2> <p><a href="http://sourceforge.net/tracker/index.php?func=detail&amp;aid=2973874&amp;group_id=80706&amp;atid=560720" rel="nofollow noreferrer">matplotlib bug 2973874</a> was opened on 20-Mar-10 with the same issue. However, it's a priority 5 and hasn't been modified since the bug was originally opened. Below is the description from the bug:</p> <blockquote> <p>I am running the 6.0.1 enthought python distibution 64bit Mac. If a run a plot and click save I get a save dialog window that opens, I canot enter text in the file name field. I can select an existing file but still cannot modify the name. If I select a non png file it does not overwrite it. I get a file with the same name but with the png extension.</p> </blockquote>
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    1. USMatthew Rankin
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    1. COFor reference, my stock 2.6 Python (for 10.6) and matplotlib 1.0 doesn't have this problem. No help there, sad to say.
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      1. USAndrew Dalke
    2. CO@Andrew — How did you install matplotlib? Also, don't sell your comment short—it's a valid data point. The fact that matplotlib works under the stock Python 2.6, could point toward the Python 2.7 framework with broken Tkinter support as the culprit.
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      1. USMatthew Rankin
    3. COI experienced the same issue running Python 2.7 in virtualenv in 10.7. The answer below fixed the issue for me.
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