From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Richard Stanton Newsgroups: gmane.emacs.bugs Subject: bug#54996: Emacs hangs when editing Python code with debug-on-error set to t Date: Sun, 17 Apr 2022 13:16:26 -0700 Message-ID: Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.80.82.1.1\)) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5200"; mail-complaints-to="usenet@ciao.gmane.io" To: 54996@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Apr 17 22:17:18 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ngBKg-0001A3-2v for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 17 Apr 2022 22:17:18 +0200 Original-Received: from localhost ([::1]:49858 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ngBKe-00009P-Jh for geb-bug-gnu-emacs@m.gmane-mx.org; 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[157.131.222.176]) by smtp.gmail.com with ESMTPSA id l4-20020a056a0016c400b004f79504ef9csm9837446pfc.3.2022.04.17.13.16.27 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 17 Apr 2022 13:16:27 -0700 (PDT) X-Mailer: Apple Mail (2.3696.80.82.1.1) Received-SPF: pass client-ip=2607:f8b0:4864:20::531; envelope-from=rhstanton@berkeley.edu; helo=mail-pg1-x531.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:230127 Archived-At: Running Emacs 28.1 on MacOS 12.3.1, I=E2=80=99ve encountered a situation = where Emacs hangs while editing Python code. To see the problem, fire up Emacs 28.1 with init.el containing just one = line: =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94 (setq debug-on-error t) =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94 Now open a Python file containing the following text: =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94 """Text in triple double quotes""" =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94 Put the cursor right at the start of the file, on the first double = quote, and press =E2=80=98, the single quote character. On my machine, = Emacs now hangs and doesn=E2=80=99t respond to the keyboard. Without = debug-on-error, this works just fine. Best, Richard Stanton