python3 compatible. tested with python-2.7.11 and python-3.5.1 using …

…archlinux

matplotlib/.gitignore

@@ -0,0 +1,5 @@
+__pycahce__/
+out/
+tmp.py
+*.pyc
+

matplotlib/backend_ipe.py

@@ -17,7 +17,7 @@
 
 # --------------------------------------------------------------------
 
-from __future__ import division, print_function
+from __future__ import division, print_function, unicode_literals
 
 import os, base64, tempfile, urllib, gzip, io, sys, codecs, re
 
@@ -45,7 +45,7 @@
 
 rcParams.validate['ipe.textsize'] = validate_bool
 rcParams.validate['ipe.stylesheet'] = validate_path_exists
-rcParams.validate['ipe.preamble'] = lambda (s) : s
+rcParams.validate['ipe.preamble'] = lambda s : s
 
 # ----------------------------------------------------------------------
 # SimpleXMLWriter class
@@ -147,8 +147,7 @@ def start(self, tag, attrib={}, **extra):
         if attrib or extra:
             attrib = attrib.copy()
             attrib.update(extra)
-            attrib = attrib.items()
-            attrib.sort()
+            attrib = sorted(attrib.items())
             for k, v in attrib:
                 if not v == '':
                     k = escape_cdata(k)
@@ -216,7 +215,7 @@ def close(self, id):
     # can be omitted.
 
     def element(self, tag, text=None, attrib={}, **extra):
-        apply(self.start, (tag, attrib), extra)
+        self.start(*(tag, attrib), **extra)
         if text:
             self.data(text)
         self.end(indent=False)
@@ -255,15 +254,15 @@ def __init__(self, width, height, ipewriter, basename):
             version=u"70005",
             creator="matplotlib")
         pre = rcParams.get('ipe.preamble', "")
-        if pre <> "":
+        if pre != "":
             self.writer.start(u'preamble')
             self.writer.data(pre)
             self.writer.end(indent=False)
         sheet = rcParams.get('ipe.stylesheet', "")
-        if sheet <> "":
+        if sheet != "":
             self.writer.insertSheet(sheet)
         self.writer.start(u'ipestyle', name=u"opacity")
-        
+
         for i in range(10,100,10):
             self.writer.element(u'opacity', name=u'%02d%%'% i, 
                                 value=u'%g'% (i/100.0))
@@ -519,7 +518,7 @@ def _cleanup():
     LatexManager._cleanup_remaining_instances()
     # This is necessary to avoid a spurious error
     # caused by the atexit at the end of the PGF backend
-    LatexManager.__del__ = lambda (self) : None
+    LatexManager.__del__ = lambda self : None
 
 atexit.register(_cleanup)
 

matplotlib/run_test.py

@@ -2,13 +2,14 @@
 # Run all the tests in tests subdirectory
 # and save plots in ipe and svg format
 # 
+from __future__ import division, print_function, unicode_literals
 
 import os, sys
 
 def fix_file(f):
-  data = open("tests/%s" % f, "rb").readlines()
+  data = open("tests/%s" % f, "r").readlines()
   os.rename("tests/%s" % f, "tests/%s.bak" % f)
-  out = open("tests/%s" % f, "wb")
+  out = open("tests/%s" % f, "w")
   for l in data:
     ll = l.strip()
     if ll == "import matplotlib as mpl": continue
@@ -30,13 +31,13 @@ def runall(form):
 
 def run(form, f):
   sys.stderr.write("# %s\n" % f)
-  t = open("tmp.py", "wb")
+  t = open("tmp.py", "w")
   t.write("""# %s
 import matplotlib as mpl
 """ % f)
   if form=="ipe":
     t.write("mpl.use('module://backend_ipe')\n")
-  t.write(open("tests/%s.py" % f, "rb").read())
+  t.write(open("tests/%s.py" % f, "r").read())
   t.write("plt.savefig('out/%s.%s', format='%s')\n" % (f, form, form))
   t.close()
   os.system("python tmp.py")