backend_ps: Try to fix UnicodeError

tomspur · tomspur · commit 2058dcbba907 · 2017-04-03T23:23:12.000+02:00
The full traceback leads to here:
lib/matplotlib/backends/backend_ps.py:1537: in gs_distill
    if ps_backend_helper.supports_ps2write: # gs version &gt;= 9
lib/matplotlib/backends/backend_ps.py:106: in supports_ps2write
    return self.gs_version[0] &gt;= 9
lib/matplotlib/backends/backend_ps.py:87: in gs_version
    s = Popen([self.gs_exe, "--version"], stdout=PIPE)
venv/lib/python2.7/site-packages/subprocess32.py:825: in __init__
    restore_signals, start_new_session)
venv/lib/python2.7/site-packages/subprocess32.py:1387: in _execute_child
    for exe in executable_list)
venv/lib/python2.7/site-packages/subprocess32.py:1386: in &lt;genexpr&gt;
    executable_list = tuple(fs_encode(exe)
venv/lib/python2.7/site-packages/subprocess32.py:1385: in &lt;genexpr&gt;
    for dir in path_list)
diff --git a/lib/matplotlib/backends/backend_ps.py b/lib/matplotlib/backends/backend_ps.py
@@ -84,7 +84,7 @@ def gs_version(self):
             pass
 
         from matplotlib.compat.subprocess import Popen, PIPE
-        s = Popen([self.gs_exe, "--version"], stdout=PIPE)
+        s = Popen([str(self.gs_exe), "--version"], stdout=PIPE)
         pipe, stderr = s.communicate()
         if six.PY3:
             ver = pipe.decode('ascii')
