* [PATCH] ob-python: Insert necessary blank line when sending code to interpreter
@ 2018-04-02 2:21 qijian gong
2018-04-02 18:56 ` Nicolas Goaziou
0 siblings, 1 reply; 3+ messages in thread
From: qijian gong @ 2018-04-02 2:21 UTC (permalink / raw)
To: Emacs-orgmode
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Hello,
I've written this patch to fix the syntax error alarm caused by evaluating
the following code block:
#+BEGIN_SRC python :session
if True:
1
2
#+END_SRC
In *Python* buffer:
#+BEGIN_QUOTE
if True:
Python 3.6.1 (default, Apr 8 2017, 19:21:02)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
1
>>> ... ... File "<stdin>", line 3
import codecs, os;__pyfile =
codecs.open('''/var/folders/vq/k0y6n92j6r5dk_hx_jrl62jh0000gn/T/py6GOx5H''',
encoding='''utf-8''');__code =
__pyfile.read().encode('''utf-8''');__pyfile.close();os.remove('''/var/folders/vq/k0y6n92j6r5dk_hx_jrl62jh0000gn/T/py6GOx5H''');exec(compile(__code,
'''/var/folders/vq/k0y6n92j6r5dk_hx_jrl62jh0000gn/T/py6GOx5H''', 'exec'));
^
SyntaxError: invalid syntax
>>> 2
2
>>>
open('/var/folders/vq/k0y6n92j6r5dk_hx_jrl62jh0000gn/T/babel-2PNS5b/python-oXjil1',
'w').write(str(_))
>>>
1
>>> 'org_babel_python_eoe'
>>> 'org_babel_python_eoe'
#+END_QUOTE
To fix this, need to insert an extra blank line to end the if statement.
More discussion[1][2][3].
Thanks,
Qijian
Footnotes:
[1] https://emacs-china.org/t/topic/5436/
[2]
https://stackoverflow.com/questions/8391633/blank-line-rule-at-interactive-prompt/41988906#41988906
[3] https://www.python.org/dev/peps/pep-0008/#blank-line
------------------------------------------------------------------
From 4481a5032e94a85153b708c66858d2965abf6d84 Mon Sep 17 00:00:00 2001
From: Gong Qijian <gongqijian@gmail.com>
Date: Sun, 1 Apr 2018 16:34:32 +0800
Subject: [PATCH] ob-python: Insert necessary blank line when sending code to
interpreter * lisp/ob-python.el (org-bable-python-evaluate-session):
Syntax error occurs when evaulating the following code block:
\#begin_src python :session
if True:
1
2
\#end_src
A blank line is required for top level module code to end an indented
block, such as a for loop, try/except, or if statement.
https://www.python.org/dev/peps/pep-0008/#blank-line
TINYCHANGE
---
lisp/ob-python.el | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/lisp/ob-python.el b/lisp/ob-python.el
index 9f1234bac..36d549697 100644
--- a/lisp/ob-python.el
+++ b/lisp/ob-python.el
@@ -308,8 +308,19 @@ last statement in BODY, as elisp."
(list (format "open('%s', 'w').write(str(_))"
(org-babel-process-file-name tmp-file
'noquote)))))))
+ (last-indent 0)
(input-body (lambda (body)
- (mapc (lambda (line) (insert line) (funcall send-wait))
+ (mapc (lambda (line)
+ (let ((curr-indent (string-match "[^\s]" line)))
+ (if curr-indent
+ (progn
+ (when (< curr-indent last-indent)
+ (insert "")
+ (funcall send-wait))
+ (setq last-indent curr-indent))
+ (setq last-indent 0)))
+ (insert line)
+ (funcall send-wait))
(split-string body "[\r\n]"))
(funcall send-wait)))
(results
--
2.16.2
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] ob-python: Insert necessary blank line when sending code to interpreter
2018-04-02 2:21 [PATCH] ob-python: Insert necessary blank line when sending code to interpreter qijian gong
@ 2018-04-02 18:56 ` Nicolas Goaziou
2018-04-03 22:29 ` qijian gong
0 siblings, 1 reply; 3+ messages in thread
From: Nicolas Goaziou @ 2018-04-02 18:56 UTC (permalink / raw)
To: qijian gong; +Cc: Emacs-orgmode
Hello,
qijian gong <gongqijian@gmail.com> writes:
> I've written this patch to fix the syntax error alarm caused by evaluating
> the following code block:
>
> #+BEGIN_SRC python :session
> if True:
> 1
> 2
> #+END_SRC
Thank you.
Could you add a test in "test-ob-python.el"? Could you also add
a comment explaining what you are doing?
> + (let ((curr-indent (string-match "[^\s]" line)))
(string-match "\\S-" line)
Regards,
--
Nicolas Goaziou
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] ob-python: Insert necessary blank line when sending code to interpreter
2018-04-02 18:56 ` Nicolas Goaziou
@ 2018-04-03 22:29 ` qijian gong
0 siblings, 0 replies; 3+ messages in thread
From: qijian gong @ 2018-04-03 22:29 UTC (permalink / raw)
To: Nicolas Goaziou; +Cc: Emacs-orgmode
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I've added comment and test (New path file in attachment),the test results
look fine.
#+BEGIN_SRC sh
$ make BTEST_RE="test-ob-python" test-dirty
...
selected tests: test-ob-python
Running 7 tests (2018-04-03 16:51:31+0800)
executing Python code block...
Code block evaluation complete.
passed 1/7 test-ob-python/colnames-nil-header-argument
executing Python code block...
Code block evaluation complete.
passed 2/7 test-ob-python/colnames-no-header-argument
executing Python code block...
Code block evaluation complete.
passed 3/7 test-ob-python/colnames-no-header-argument-again
executing Python code block...
Code block evaluation complete.
passed 4/7 test-ob-python/colnames-yes-header-argument
executing Python code block...
Code block evaluation complete.
passed 5/7 test-ob-python/colnames-yes-header-argument-again
executing Python code block...
Code block evaluation complete.
passed 6/7
test-ob-python/insert-necessary-blank-line-when-sending-code-to-interpreter
executing Python code block...
Code block evaluation complete.
passed 7/7 test-ob-python/session-multiline
Ran 7 tests, 7 results as expected (2018-04-03 16:51:33+0800)
#+END_SRC
Nicolas Goaziou <mail@nicolasgoaziou.fr>于2018年4月3日 周二上午2:56写道:
> Hello,
>
> qijian gong <gongqijian@gmail.com> writes:
>
> > I've written this patch to fix the syntax error alarm caused by
> evaluating
> > the following code block:
> >
> > #+BEGIN_SRC python :session
> > if True:
> > 1
> > 2
> > #+END_SRC
>
> Thank you.
>
> Could you add a test in "test-ob-python.el"? Could you also add
> a comment explaining what you are doing?
>
> > + (let ((curr-indent (string-match "[^\s]" line)))
>
> (string-match "\\S-" line)
>
> Regards,
>
> --
> Nicolas Goaziou
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-04-02 2:21 [PATCH] ob-python: Insert necessary blank line when sending code to interpreter qijian gong
2018-04-02 18:56 ` Nicolas Goaziou
2018-04-03 22:29 ` qijian gong
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