make user defined path in front of system path

Author: wanglongqi

0.9.x/writetex.py

@@ -369,7 +369,9 @@ def handle_path(newpath):
         if newpath in paths:
             return
         if newpath:
-            os.environ['PATH'] += os.path.pathsep + newpath
+            # Keep new paths in front of system path. Suggested by @L-N1988 in
+            # https://github.com/wanglongqi/WriteTeX/issues/29
+            os.environ['PATH'] = newpath + os.path.pathsep + os.environ['PATH']
 
 if __name__ == '__main__':
     e = WriteTex()

1.x.x/writetex.py

@@ -373,7 +373,9 @@ def handle_path(newpath):
         if newpath in paths:
             return
         if newpath:
-            os.environ['PATH'] += os.path.pathsep + newpath
+            # Keep new paths in front of system path. Suggested by @L-N1988 in
+            # https://github.com/wanglongqi/WriteTeX/issues/29
+            os.environ['PATH'] = newpath + os.path.pathsep + os.environ['PATH']
 
 if __name__ == '__main__':
     e = WriteTex()