From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: 31.0.50; shell, virtualenv Date: Mon, 16 Dec 2024 12:20:40 +0300 Message-ID: References: <1c08db0b-270c-48e0-a5e0-6092bfee40ef@easy-emacs.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19301"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.12 (2023-09-09) Cc: "help-gnu-emacs@gnu.org" To: Andreas =?utf-8?Q?R=C3=B6hler?= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 16 10:21:32 2024 Return-path: Envelope-to: geh-help-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 1tN7IC-0004rw-S3 for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 16 Dec 2024 10:21:32 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tN7Hb-0003M3-Op; Mon, 16 Dec 2024 04:20:55 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tN7Ha-0003Lv-SC for help-gnu-emacs@gnu.org; Mon, 16 Dec 2024 04:20:54 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tN7HU-0001kT-5o for help-gnu-emacs@gnu.org; Mon, 16 Dec 2024 04:20:49 -0500 Original-Received: from localhost ([::ffff:41.75.190.172]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 000000000001BF31.00000000675FF0EB.0007A432; Mon, 16 Dec 2024 02:20:42 -0700 Mail-Followup-To: Andreas =?utf-8?Q?R=C3=B6hler?= , "help-gnu-emacs@gnu.org" Content-Disposition: inline In-Reply-To: <1c08db0b-270c-48e0-a5e0-6092bfee40ef@easy-emacs.de> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:148826 Archived-At: * Andreas Röhler [2024-12-16 11:54]: > Have in init a command like that: > > (defun aktivate-My-shell-virtualenv-root() >   (interactive) >   (when (boundp 'My-shell-virtualenv-root) >     (unless (string= "" My-shell-virtualenv-root) >       (dired My-shell-virtualenv-root) >       (setq default-directory My-shell-virtualenv-root) >       (shell) >       (virtualenv-activate My-shell-virtualenv-root)))) You could ensure that `My-shell-virtualenv-root' is string by using: (unless (and My-shell-virtualenv-root (stringp My-shell-virtualenv-root) (string= "" My-shell-virtualenv-root)) and I guess you may do this too: (unless (and (boundp 'My-shell-virtualenv-root) ;; that it is bound My-shell-virtualenv-root ;; that it is not NIL (stringp My-shell-virtualenv-root) ;; that it is string (string= "" My-shell-virtualenv-root)) ;; that string is empty string -- Jean Louis