diff -r 31e63e25b4cc -r 64beb9e9c749 svgui/pyjs/lib/sys.py
--- a/svgui/pyjs/lib/sys.py	Mon Aug 21 20:17:19 2017 +0000
+++ b/svgui/pyjs/lib/sys.py	Mon Aug 21 23:22:58 2017 +0300
@@ -1,32 +1,37 @@
 # the platform name (PyV8, smjs, Mozilla, IE6, Opera, Safari etc.)
-platform = '' # to be updated by app, on compile
+platform = ''  # to be updated by app, on compile
 
 # a dictionary of module override names (platform-specific)
-overrides = None # to be updated by app, on compile
+overrides = None  # to be updated by app, on compile
 
 # the remote path for loading modules
-loadpath = None 
+loadpath = None
 
-stacktrace = None 
+stacktrace = None
 
-appname = None 
+appname = None
+
 
 def setloadpath(lp):
     global loadpath
     loadpath = lp
 
+
 def setappname(an):
     global appname
     appname = an
 
+
 def getloadpath():
     global loadpath
     return loadpath
 
+
 def addoverride(module_name, path):
     global overrides
     overrides[module_name] = path
 
+
 def addstack(linedebug):
     JS("""
         if (pyjslib.bool((sys.stacktrace === null))) {
@@ -34,11 +39,14 @@
         }
         sys.stacktrace.append(linedebug);
     """)
+
+
 def popstack():
     JS("""
         sys.stacktrace.pop()
     """)
 
+
 def printstack():
     JS("""
         var res = '';