From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: JD Smith Newsgroups: gmane.emacs.bugs Subject: bug#47657: python-shell font-lock with multi-line input: runaway fontification buffer length Date: Thu, 8 Apr 2021 11:48:25 -0400 Message-ID: <603226C1-620D-4C53-B8E9-A2ECA3A3DB3C@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) Content-Type: multipart/alternative; boundary="Apple-Mail=_E2C643A9-F3E6-4D18-9C09-3049494173F8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24622"; mail-complaints-to="usenet@ciao.gmane.io" To: 47657@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Apr 08 17:49:31 2021 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 1lUWuQ-0006Ij-SY for geb-bug-gnu-emacs@m.gmane-mx.org; 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Thu, 08 Apr 2021 08:48:27 -0700 (PDT) Original-Received: from rain.wifi.utoledo.edu ([131.183.185.120]) by smtp.gmail.com with ESMTPSA id n11sm16911959ioa.34.2021.04.08.08.48.26 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Apr 2021 08:48:26 -0700 (PDT) X-Mailer: Apple Mail (2.3608.120.23.2.4) Received-SPF: pass client-ip=2607:f8b0:4864:20::d30; envelope-from=jdtsmith@gmail.com; helo=mail-io1-xd30.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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:203735 Archived-At: --Apple-Mail=_E2C643A9-F3E6-4D18-9C09-3049494173F8 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 =09 `python-shell-font-lock-post-command-hook=E2=80=99 makes the presumption = that only a single line of input can appear at the prompt. It includes = this preparatory =E2=80=9Cclean-up=E2=80=9D of its font lock buffer = after first having copied all input lines after the prompt: (let* ((input (buffer-substring-no-properties prompt-end (point-max))) ... (replacement (python-shell-font-lock-with-font-lock-buffer (delete-region (line-beginning-position) (point-max)) (setq font-lock-buffer-pos (point)) (insert input) This means that using, e.g., C-c SPC (`comint-accumulate=E2=80=99) to = insert a newline at the shell prompt leads to runaway growth of the = font-lock buffer (=E2=80=9C *Python-font-lock=E2=80=9D, by default). = Any command, like an insert, produces a new copy of all but the final = line of input in this buffer. Since this entire buffer is font-locked = from scratch after every single command, this becomes very inefficient. =20= Find an example, below. The simple fix would be to delete the entire font-lock buffer file = contents: (delete-region (point-min) (point-max)) A perhaps smarter and more efficient fix would be to enable font locking = in the inferior Python buffer itself, but constrain it to the text after = the process mark. This would also prevent front-lock from constantly = having to re-fontify the entire input text after each command.=20 ++++ (In *Python* shell buffer): In [2]: a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' d=3D'and I=E2=80=99=20 (In " *Python-font-lock"; this can become arbitrarily long): a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' a=3D 'now is the time' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' a=3D 'now is the time' for i in range(12): a =3D 12; print(i+4-4)=20 b=3D'one two one two and through and through' d=3D'and I'=20= --Apple-Mail=_E2C643A9-F3E6-4D18-9C09-3049494173F8 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
=
`python-shell-font-lock-post-command-hook=E2=80= =99 makes the presumption that only a single line of input can appear at = the prompt.  It includes this preparatory =E2=80=9Cclean-up=E2=80=9D = of its font lock buffer after first having copied all input lines after = the prompt:

  =     (let* ((input = (buffer-substring-no-properties
        =              prompt-end = (point-max)))
          =  ...
            =  (replacement
            =   = (python-shell-font-lock-with-font-lock-buffer
  =               (delete-region = (line-beginning-position)
        =                     =    (point-max))
        =         (setq font-lock-buffer-pos = (point))
            =     (insert input)


This means that using, e.g., C-c SPC = (`comint-accumulate=E2=80=99) to insert a newline at the shell prompt = leads to runaway growth of the font-lock buffer (=E2=80=9C = *Python-font-lock=E2=80=9D, by default).  Any command, like an = insert, produces a new copy of all but the final line of input in this = buffer.  Since this entire buffer is font-locked from scratch after = every single command, this becomes very inefficient. =  

Find an = example, below.

The simple fix would be to delete the entire font-lock buffer = file contents:

= (delete-region (point-min) (point-max))

A perhaps smarter and = more efficient fix would be to enable font locking in the inferior = Python buffer itself, but constrain it to the text after the process = mark.  This would also prevent front-lock from constantly having to = re-fontify the entire input text after each command. 

++++

(In *Python* shell = buffer):

In [2]: a=3D 'now is the time'
for i in = range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and through'
d=3D'and I=E2=80=99 

(In " *Python-font-lock"; this can become arbitrarily = long):

a=3D 'now is the = time'
a=3D = 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
a=3D 'now is the time'
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; = print(i+4-4) 
a=3D 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
a=3D = 'now is the time'
for i in range(12):
a =3D 12; print(i+4-4) 
b=3D'one two one two and through and = through'
d=3D'and = I' 
= --Apple-Mail=_E2C643A9-F3E6-4D18-9C09-3049494173F8--