Python 3 compatibility syntax error fixes (#10519)

* Use Python 3 style print function

* Use 'Exception as e' instead of 'Exception, e'

* Unpack tuple arguments explicitly in instead of relying on auto unpacking

* Use consistent indentation

* Use 0 if stock_frozen_upto_days is None

erpnext/utilities/__init__.py

@@ -1,5 +1,5 @@
 ## temp utility
-
+from __future__ import print_function
 import frappe
 from erpnext.utilities.activation import get_level
 from frappe.utils import cstr
@@ -12,7 +12,7 @@ def update_doctypes():
 
 		for f in dt.fields:
 			if f.fieldname == d.fieldname and f.fieldtype in ("Text", "Small Text"):
-				print f.parent, f.fieldname
+				print(f.parent, f.fieldname)
 				f.fieldtype = "Text Editor"
 				dt.save()
 				break