GNU bug report logs - #67717
29.1; Eshell doesn't handle script with "#!/usr/bin/env python3 -ESs"

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 67717 in the body.
You can then email your comments to 67717 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Sean Devlin <spd <at> toadstyle.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.1; Eshell doesn't handle script with "#!/usr/bin/env python3 -ESs"
Date: Fri, 8 Dec 2023 16:34:48 -0500

Hi folks,

From Eshell, I'm trying to invoke a script with the interpreter line:

#!/usr/bin/env python3 -ESs

Instead of invoking the script, Eshell prints the line:

env: python3 -ESs: No such file or directory

Recipe:

1. Create a file with contents:

#!/usr/bin/env python3 -ESs
from sys import argv
print(argv)

2. M-x eshell
3. In Eshell, run the commands:

$ chmod +x /path/to/file
$ /path/to/file one two three

Expectation: Eshell should print the line:

['/path/to/file', 'one', 'two', 'three']

Result: Eshell prints the line:

env: python3 -ESs: No such file or directory

I think the problem is somewhere in esh-ext.el. Tracing the functions
eshell-find-interpreter and eshell-script-interpreter during execution
yields the following trace:

1 -> (eshell-find-interpreter "/path/to/file" ("one" "two" "three") nil)
| 2 -> (eshell-script-interpreter "/path/to/file")
| 2 <- eshell-script-interpreter: ("/usr/bin/env" "python3 -ESs" "/path/to/file")
| 2 -> (eshell-find-interpreter "/usr/bin/env" ("one" "two" "three") t)
| 2 <- eshell-find-interpreter: ("/usr/bin/env")
1 <- eshell-find-interpreter: ("/usr/bin/env" "python3 -ESs" "/path/to/file")

It looks like "python3 -ESs" has been parsed as a single argument to
env, but it should be split into two arguments.

Thanks!

In GNU Emacs 29.1 (build 1, aarch64-apple-darwin21.6.0, NS
appkit-2113.60 Version 12.6.6 (Build 21G646)) of 2023-08-16 built on
armbob.lan
Windowing system distributor 'Apple', version 10.3.2487
System Description:  macOS 14

Configured using:
'configure --with-ns '--enable-locallisppath=/Library/Application
Support/Emacs/${version}/site-lisp:/Library/Application
Support/Emacs/site-lisp' --with-modules 'CFLAGS=-DFD_SETSIZE=10000
-DDARWIN_UNLIMITED_SELECT' --with-x-toolkit=no'

Configured features:
ACL GLIB GMP GNUTLS JPEG JSON LIBXML2 MODULES NOTIFY KQUEUE NS PDUMPER
PNG RSVG SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Eshell

Minor modes in effect:
  shell-dirtrack-mode: t
  eshell-prompt-mode: t
  eshell-hist-mode: t
  eshell-pred-mode: t
  eshell-cmpl-mode: t
  eshell-proc-mode: t
  eshell-arg-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068
epg-config gnus-util text-property-search time-date mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils cl-seq em-unix
em-term term disp-table shell subr-x ehelp em-script em-prompt em-ls
em-hist em-pred em-glob em-extpipe em-cmpl em-dirs esh-var pcomplete
comint ansi-osc ansi-color ring em-basic em-banner em-alias esh-mode
eshell esh-cmd generator cl-loaddefs cl-lib esh-ext esh-opt esh-proc
esh-io esh-arg esh-module esh-groups esh-util files-x rmc iso-transl
tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/ns-win ns-win ucs-normalize
mule-util term/common-win tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode lisp-mode prog-mode register
page tab-bar menu-bar rfn-eshadow isearch easymenu timer select
scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors
frame minibuffer nadvice seq simple cl-generic indonesian philippine
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure
cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp
files window text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget keymap hashtable-print-readable backquote
threads kqueue cocoa ns multi-tty make-network-process emacs)

Memory information:
((conses 16 57220 7333)
(symbols 48 7114 0)
(strings 32 20015 1685)
(string-bytes 1 653654)
(vectors 16 14649)
(vector-slots 8 204725 8629)
(floats 8 27 19)
(intervals 56 289 0)
(buffers 984 11))

Message #8 received at 67717 <at> debbugs.gnu.org (full text, mbox):

From: Jim Porter <jporterbugs <at> gmail.com>
To: Sean Devlin <spd <at> toadstyle.org>, 67717 <at> debbugs.gnu.org
Subject: Re: bug#67717: 29.1; Eshell doesn't handle script with
 "#!/usr/bin/env python3 -ESs"
Date: Fri, 8 Dec 2023 14:58:06 -0800

tags 67717 notabug wontfix
thanks

On 12/8/2023 1:34 PM, Sean Devlin wrote:
>  From Eshell, I'm trying to invoke a script with the interpreter line:
> 
> #!/usr/bin/env python3 -ESs
> 
> Instead of invoking the script, Eshell prints the line:
> 
> env: python3 -ESs: No such file or directory

This is the correct behavior. The shebang syntax takes at most 2 values: 
the interpreter, and a single optional argument. Therefore, it's correct 
to interpret "python3 -ESs" as one argument. However, you can fix this 
with the "-S" option to env, e.g. "#!/usr/bin/env -S python3 -ESs". 
(I've confirmed locally that this works properly in Eshell.)

For more information, see here: 
<https://en.wikipedia.org/wiki/Shebang_(Unix)#Character_interpretation>

Message #11 received at 67717 <at> debbugs.gnu.org (full text, mbox):

From: Sean Devlin <spd <at> toadstyle.org>
To: Jim Porter <jporterbugs <at> gmail.com>
Cc: 67717 <at> debbugs.gnu.org
Subject: Re: bug#67717: 29.1;
 Eshell doesn't handle script with "#!/usr/bin/env python3 -ESs"
Date: Sat, 9 Dec 2023 09:24:17 -0500

> On Dec 8, 2023, at 5:58 PM, Jim Porter <jporterbugs <at> gmail.com> wrote:
> 
> tags 67717 notabug wontfix
> thanks
> 
>> On 12/8/2023 1:34 PM, Sean Devlin wrote:
>> From Eshell, I'm trying to invoke a script with the interpreter line:
>> #!/usr/bin/env python3 -ESs
>> Instead of invoking the script, Eshell prints the line:
>> env: python3 -ESs: No such file or directory
> 
> This is the correct behavior. The shebang syntax takes at most 2 values: the interpreter, and a single optional argument. Therefore, it's correct to interpret "python3 -ESs" as one argument. However, you can fix this with the "-S" option to env, e.g. "#!/usr/bin/env -S python3 -ESs". (I've confirmed locally that this works properly in Eshell.)
> 
> For more information, see here: <https://en.wikipedia.org/wiki/Shebang_(Unix)#Character_interpretation>

I see, thank you.

Message #18 received at 67717-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Sean Devlin <spd <at> toadstyle.org>, Jim Porter <jporterbugs <at> gmail.com>
Cc: 67717-done <at> debbugs.gnu.org
Subject: Re: bug#67717: 29.1; Eshell doesn't handle script with
 "#!/usr/bin/env python3 -ESs"
Date: Thu, 14 Dec 2023 17:01:49 -0800

Sean Devlin <spd <at> toadstyle.org> writes:

>> This is the correct behavior. The shebang syntax takes at most 2 values: the interpreter, and a single optional argument. Therefore, it's correct to interpret "python3 -ESs" as one argument. However, you can fix this with the "-S" option to env, e.g. "#!/usr/bin/env -S python3 -ESs". (I've confirmed locally that this works properly in Eshell.)

I'm therefore closing this bug report.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.