fix unicode problem in snapshot.open

apetri · Oct 15, 2016 · bc57e64 · bc57e64
1 parent 4687e57
commit bc57e64
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lenstools/simulations/nbody.py b/lenstools/simulations/nbody.py
@@ -190,7 +190,7 @@ def open(cls,filename,pool=None,header_kwargs=dict(),**kwargs):
 
 		"""
 
-		if type(filename)==str:
+		if hasattr(filename,"format"):
 
 			fp = open(cls.buildFilename(filename,pool,**kwargs),"rb")
 
@@ -201,7 +201,7 @@ def open(cls,filename,pool=None,header_kwargs=dict(),**kwargs):
 			fp = filename
 
 		else:
-			raise TypeError("filename must be string or file!")
+			raise TypeError("filename type is {0}, must be string or file!".format(type(filename)))
 
 		return cls(fp,pool,header_kwargs=header_kwargs)