throw out stderr so that users don't see the warning about no svg extension on temp...

diff --git a/share/extensions/perspective.py b/share/extensions/perspective.py
index 2f25f6a541dd91f50f0b2184526753c4aae4d5c1..014a7b779c4807ab8426dfebfc686aa03db98a2a 100755 (executable)
--- a/share/extensions/perspective.py
+++ b/share/extensions/perspective.py
@@ -19,12 +19,12 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 Perspective approach & math by Dmitry Platonov, shadowjack@mail.ru, 2006
 """
 import sys, inkex, os, re, simplepath, cubicsuperpath 
-from ffgeom import *\r
+from ffgeom import *
 try:
     from numpy import *
-    from numpy.linalg import *\r
-except:\r
-    inkex.debug("Failed to import the numpy or numpy.linalg modules. These modules are required by this extension. Please install them and try again.")\r
+    from numpy.linalg import *
+except:
+    inkex.debug("Failed to import the numpy or numpy.linalg modules. These modules are required by this extension. Please install them and try again.")
     sys.exit()
 
 uuconv = {'in':90.0, 'pt':1.25, 'px':1, 'mm':3.5433070866, 'cm':35.433070866, 'pc':15.0}
@@ -68,9 +68,10 @@ class Project(inkex.Effect):
             file = self.args[-1]
             id = self.options.ids[0]
             for query in q.keys():
-                f = os.popen("inkscape --query-%s --query-id=%s %s" % (query,id,file))
+                _,f,err = os.popen3("inkscape --query-%s --query-id=%s %s" % (query,id,file))
                 q[query] = float(f.read())
                 f.close()
+               err.close()
             sp = array([[q['x'], q['y']+q['height']],[q['x'], q['y']],[q['x']+q['width'], q['y']],[q['x']+q['width'], q['y']+q['height']]], dtype=float64)
 
         solmatrix = zeros((8,8), dtype=float64)
@@ -81,7 +82,7 @@ class Project(inkex.Effect):
             solmatrix[i][2] = 1
             solmatrix[i][6] = -dp[i][0]*sp[i][0]
             solmatrix[i][7] = -dp[i][0]*sp[i][1]
-            solmatrix[i+4][3] = sp[i][0]\r
+            solmatrix[i+4][3] = sp[i][0]
             solmatrix[i+4][4] = sp[i][1]
             solmatrix[i+4][5] = 1
             solmatrix[i+4][6] = -dp[i][1]*sp[i][0]