[New-bugs-announce] [issue40619] compile() passes rest of file as SyntaxError().text when file unreadable

[Guido van Rossum]

New submission from Guido van Rossum <guido at python.org>:

Example:

>>> compile("pass\n(1+)\npass", "<string>", "exec")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "", line 2
    (1+)
pass
       ^
SyntaxError: invalid syntax
>>> 

Note that the input is

pass
(1+)
pass

The second "pass" (and in fact the entire file) leaks into the SyntaxError object's text attribute.

This only happens when the file (here "<string>") cannot be read.

It's not specific to compile(), it seems fundamental in the C-level pegen API.

----------
keywords: 3.4regression
messages: 368815
nosy: gvanrossum
priority: normal
severity: normal
stage: needs patch
status: open
title: compile() passes rest of file as SyntaxError().text when file unreadable
type: behavior
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40619>
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