diff --git a/src/diana/sgfParser/__init__.py b/src/diana/sgfParser/__init__.py
--- a/src/diana/sgfParser/__init__.py
+++ b/src/diana/sgfParser/__init__.py
@@ -1,29 +1,31 @@
-def skipWhitespace(s,start):
-	i=start
-	while i<len(s) and s[i].isspace(): i+=1
+def skipWhitespace(s, start):
+	i = start
+	while i < len(s) and s[i].isspace():
+		i+=1
+
 	return i
 
 
 def strRowCol(s, i):
-	k=0
-	r,c=0,0
-	for (r,line) in enumerate(s.splitlines(True)):
-		c=i-k
-		if k+len(line)>i:
+	k = 0
+	(r, c) = (0, 0)
+	for (r, line) in enumerate(s.splitlines(True)):
+		c = i-k
+		if k+len(line) > i:
 			break
 		else:
-			k+=len(line)
+			k += len(line)
 	return (r+1, c+1)
 
 
 class ParserError(Exception):
-	def __init__(self,msg,s,i):
-		self.msg=msg
-		self.row,self.col=strRowCol(s,i)
-		self.context=s[i:i+16]
+	def __init__(self, msg, s, i):
+		self.msg = msg
+		(self.row, self.col) = strRowCol(s, i)
+		self.context = s[i:i+16]
 
 	def __str__(self):
-		return "{0} at row {1}, col {2}, got '{3}...' instead".format(self.msg,self.row,self.col,self.context)
+		return "{0} at row {1}, col {2}, got '{3}...' instead".format(self.msg, self.row, self.col, self.context)
 
 
 class ParserWarning(ParserError):