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From: "Adrian Kummerländer" <adrian.kummerlaender@student.kit.edu>
To: <emacs-orgmode@gnu.org>
Subject: [PATCH] ob-python: Rename exec tmpfile handle to prevent conflict
Date: Wed, 7 Oct 2020 08:27:33 +0200	[thread overview]
Message-ID: <87pn5uzh2i.fsf@student.kit.edu> (raw)

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I noticed that after updating to Org 9.4 many of my Python-based Org
files fail to execute with various `io.TextIOWrapper' related error
messages. The reason for this is that opening the exec tmpfile as `f'
shadows this possibly user-defined variable.

The attached patch fixes this problem for me. As this is my first
time contributing to Org I am especially open for any suggestions!

Best regards,

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From 239aa9aaa8da0f98719469abdff46ecb7a3994ba Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender <adrian@kummerlaender.eu>
Date: Tue, 6 Oct 2020 23:06:08 +0200
Subject: [PATCH] ob-python: Rename exec tmpfile handle to prevent conflict

* lisp/ob-python.el (org-babel-python--exec-tmpfile): Rename tmpfile handle
   (org-babel-python-format-session-value): Rename tmpfile handle

Opening the exec tmpfile as a `f' variable shadows any such variable
that might by defined by the Python session context. e.g. my Org babel
files commonly pass single letter variables inside a session which is
broken by this behavior.

The new name `__org_babel_python_tmpfile' is in line with other org
mode specific Python variables set by ob-python. This is unlikely to
conflict with the user's Python code.
 lisp/ob-python.el | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lisp/ob-python.el b/lisp/ob-python.el
index 785b9191b..6752adc17 100644
--- a/lisp/ob-python.el
+++ b/lisp/ob-python.el
@@ -244,8 +244,8 @@ def main():
 open('%s', 'w').write( pprint.pformat(main()) )")
 (defconst org-babel-python--exec-tmpfile "\
-with open('%s') as f:
-    exec(compile(f.read(), f.name, 'exec'))"
+with open('%s') as __org_babel_python_tmpfile:
+    exec(compile(__org_babel_python_tmpfile.read(), __org_babel_python_tmpfile.name, 'exec'))"
   "Template for Python session command with output results.
 Has a single %s escape, the tempfile containing the source code
@@ -256,20 +256,20 @@ to evaluate.")
   "Return Python code to evaluate SRC-FILE and write result to RESULT-FILE."
   (format "\
 import ast
-with open('%s') as f:
-    __org_babel_python_ast = ast.parse(f.read())
+with open('%s') as __org_babel_python_tmpfile:
+    __org_babel_python_ast = ast.parse(__org_babel_python_tmpfile.read())
 __org_babel_python_final = __org_babel_python_ast.body[-1]
 if isinstance(__org_babel_python_final, ast.Expr):
     __org_babel_python_ast.body = __org_babel_python_ast.body[:-1]
     exec(compile(__org_babel_python_ast, '<string>', 'exec'))
     __org_babel_python_final = eval(compile(ast.Expression(
         __org_babel_python_final.value), '<string>', 'eval'))
-    with open('%s', 'w') as f:
+    with open('%s', 'w') as __org_babel_python_tmpfile:
         if %s:
             import pprint
-            f.write(pprint.pformat(__org_babel_python_final))
+            __org_babel_python_tmpfile.write(pprint.pformat(__org_babel_python_final))
-            f.write(str(__org_babel_python_final))
+            __org_babel_python_tmpfile.write(str(__org_babel_python_final))
     exec(compile(__org_babel_python_ast, '<string>', 'exec'))
     __org_babel_python_final = None"

             reply	other threads:[~2020-10-07  6:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-07  6:27 Adrian Kummerländer [this message]
2020-10-10 23:10 ` [PATCH] ob-python: Rename exec tmpfile handle to prevent conflict Jack Kamm
2020-10-24 11:53   ` Bastien
2020-10-24 14:06     ` Jack Kamm
2020-10-24 14:50       ` Bastien
2020-10-25 13:25         ` stardiviner
  -- strict thread matches above, loose matches on Subject: below --
2020-10-06 21:44 Adrian Kummerländer

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