[New-bugs-announce] [issue28772] Bus error in Python 3.6.0beta

[Stefan Scherfke]

New submission from Stefan Scherfke:

Hi all,

I am trying to build a custom Conda installer for Python 3.6.0b4.

I could successfully build an run Python.  However, when I run
the generated Conda installer, it dies with a "Bus error".

It happens when Conda's meta-installer script tries to replace
the build-prefix (e.g., /home/stefan/conda/asdf) with the prefix
of the actual installation (e.g., /tmp/py36).

Therefore, it opens all files in binary mode, reads their contents, replaces stuff, and writes the new contents back to the original file.

This works fine with text files but it dies when it hits the first binary file.

Here is a minimal example that reproduces the error:

$ /tmp/py36/bin/python
Python 3.6.0b4 (default, Nov 22 2016, 10:32:29)
[GCC 6.2.1 20160916 (Red Hat 6.2.1-2)] on linux
>>>
>>> path = '/tmp/py36/lib/libpython3.6m.so.1.0'
>>> f = open(path, 'wb')
BusError

Can anyone reproduce this?  Is this a compilation error or an issue
with Python itself?  It works without issues with Python 3.5.

Cheers,
Stefan

PS: If need, I can upload the Conda installer somewhere.  It's ~40MiB.

----------
messages: 281475
nosy: Stefan Scherfke
priority: normal
severity: normal
status: open
title: Bus error in Python 3.6.0beta
type: crash
versions: Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28772>
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