self.stranded property converted to boolean

bedparse/bedline.py

@@ -40,11 +40,13 @@ def __init__(self, line=None):
         #Validate the strand and set stranded property
         if(self.bedType>=6):
             if(self.strand=="+" or self.strand=="-"):
-                self.stranded=1
+                self.stranded=True
             elif(self.strand=="" or self.strand == "."):
-                self.strand=0
+                self.stranded=False
             else:
                 raise BEDexception("The strand is not any of '+', '-', '.' or '' for transcript: "+self.name)
+        else:
+            self.stranded=False
 
         if(self.bedType==12):
             # Validate nEx, and CDS fields
@@ -339,7 +341,7 @@ def bed12tobed6(self, appendExN=False, whichExon="all"):
         if(self.bedType!=12): raise BEDexception("Only BED12 lines can be coverted to BED6")
         if whichExon not in ("all", "first", "last"):
             raise BEDexception("whichExon has to be one of [all, first, last]")
-        if whichExon is not "all" and self.stranded!=1:
+        if whichExon is not "all" and not self.stranded:
             raise BEDexception("whichExon is only allowed if the transcripts are stranded. %s is not"%self.name)
 
         exons=list()