Add missing initializer for self._backupfilename. Due to Ralph Butler.

0aec9fb1 · Guido van Rossum · 3a8d1f5a · 0aec9fb1
Commit 0aec9fb1 authored Jul 20, 1998 by Guido van Rossum
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Lib/fileinput.py Lib/fileinput.py +1 -0

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--- a/Lib/fileinput.py
+++ b/Lib/fileinput.py
@@ -142,6 +142,7 @@ class FileInput:
        self._filelineno = 0
        self._file = None
        self._isstdin = 0
+        self._backupfilename = None

    def __del__(self):
        self.close()