Get rid of xmllint and related verifier code.

anntzer · anntzer · commit 6110c7cb4acf · 2018-02-23T11:24:38.000-08:00
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -541,23 +541,6 @@ def checkdep_inkscape():
 checkdep_inkscape.version = None
 
 
-@cbook.deprecated("2.1")
-def checkdep_xmllint():
-    try:
-        s = subprocess.Popen([str('xmllint'), '--version'],
-                             stdout=subprocess.PIPE,
-                             stderr=subprocess.PIPE)
-        stdout, stderr = s.communicate()
-        lines = stderr.decode('ascii').split('\n')
-        for line in lines:
-            if 'version' in line:
-                v = line.split()[-1]
-                break
-        return v
-    except (IndexError, ValueError, UnboundLocalError, OSError):
-        return None
-
-
 def checkdep_ps_distiller(s):
     if not s:
         return False
diff --git a/lib/matplotlib/testing/compare.py b/lib/matplotlib/testing/compare.py
@@ -316,39 +316,6 @@ def convert(filename, cache):
 
     return newname
 
-#: Maps file extensions to a function which takes a filename as its
-#: only argument to return a list suitable for execution with Popen.
-#: The purpose of this is so that the result file (with the given
-#: extension) can be verified with tools such as xmllint for svg.
-verifiers = {}
-
-# Turning this off, because it seems to cause multiprocessing issues
-if False and matplotlib.checkdep_xmllint():
-    verifiers['svg'] = lambda filename: [
-        'xmllint', '--valid', '--nowarning', '--noout', filename]
-
-
-@cbook.deprecated("2.1")
-def verify(filename):
-    """Verify the file through some sort of verification tool."""
-    if not os.path.exists(filename):
-        raise IOError("'%s' does not exist" % filename)
-    base, extension = filename.rsplit('.', 1)
-    verifier = verifiers.get(extension, None)
-    if verifier is not None:
-        cmd = verifier(filename)
-        pipe = subprocess.Popen(cmd, universal_newlines=True,
-                                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        stdout, stderr = pipe.communicate()
-        errcode = pipe.wait()
-        if errcode != 0:
-            msg = "File verification command failed:\n%s\n" % ' '.join(cmd)
-            if stdout:
-                msg += "Standard output:\n%s\n" % stdout
-            if stderr:
-                msg += "Standard error:\n%s\n" % stderr
-            raise IOError(msg)
-
 
 def crop_to_same(actual_path, actual_image, expected_path, expected_image):
     # clip the images to the same size -- this is useful only when
