use context managers in RecordCollection.__init__() and RecordCollection.write()

record.py

@@ -28,13 +28,10 @@ class Record:
 
 class RecordCollection():
     def __init__(self, file):
-        fd = filewrapper(file, "r")
-
+        with filewrapper(file, "r") as fd:
             self._fromFile(fd)
             self._parent()
 
-        fd.close()
-
     def _fromFile(self, fd):
         lines = [i.rstrip() for i in fd.readlines()]
         self.objects = {}
@@ -85,7 +82,7 @@ class RecordCollection():
         return ret
 
     def write(self, file):
-        fd = filewrapper(file, "w")
+        with filewrapper(file, "w") as fd:
 
             lines = []
             for i in self.objects:
@@ -107,4 +104,3 @@ class RecordCollection():
                 lines[i] += "\n"
 
             fd.writelines(lines)
-        fd.close()