>>>>> In <87y75oqx82.fsf@offby1.atm01.sea.blarg.net> 
>>>>>	Eric Hanchrow <offby1@blarg.net> wrote:

> I visited a file that I keep encrypted with a symmetric passphrase using
> PGP.  That worked fine: it prompted me for my password, and displayed it
> properly.  Then I made some changes and typed C-x C-s; I saw

>     Debugger entered--Lisp error: (file-error "Opening output file" integer-or-marker-p nil)
>       signal(file-error ("Opening output file" integer-or-marker-p nil))
>       epa-file-write-region(nil nil "/home/erich/xxx.gpg" nil t)
>       apply(epa-file-write-region (nil nil "/home/erich/xxx.gpg" nil t))
>       epa-file-handler(write-region nil nil "/home/erich/xxx.gpg" nil t)
>       write-region(nil nil "/home/erich/xxx.gpg" nil t "~/xxx.gpg")
>       basic-save-buffer-2()

Thanks for the report.  I've just installed the following patch which
should fix the problem.