Odd message while building Python from tip

[Chris Angelico]

I don't think I've ever seen this message before. This is just after
'hg pull -u' to get to the latest CPython (my previous build was about
a month ago). 'make' succeeded, but concluded with this message:

running build_ext
The following modules found by detect_modules() in setup.py, have been
built by the Makefile instead, as configured by the Setup files:
atexit pwd time

And then proceeded to run build_scripts as normal.

It doesn't look like an error, and those three modules can happily be
imported by "./python" and by the freshly-installed "python3.7". It's
curious though. Any explanation?

ChrisA

[INADA Naoki]

Hi, Chris.

They are "builtin" module.
python executable contains the modules already.

But I don't know it's safe to remove them from setup.py.
There are so many platforms and special build of Python.


$ ./python
Python 3.7.0a0 (default:9f7d16266928, Jan 18 2017, 23:59:22)
[GCC 6.2.0 20161005] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.builtin_module_names
('_ast', '_codecs', '_collections', '_functools', '_imp', '_io',
'_locale', '_operator', '_signal', '_sre', '_stat', '_string',
'_symtable', '_thread', '_tracemalloc', '_warnings', '_weakref',
'atexit', 'builtins', 'errno', 'faulthandler', 'gc', 'itertools',
'marshal', 'posix', 'pwd', 'sys', 'time', 'xxsubtype', 'zipimport')

> --
> https://mail.python.org/mailman/listinfo/python-list

[Chris Angelico]

On Fri, Jan 20, 2017 at 10:09 AM, INADA Naoki <songof...@gmail.com> wrote:
> Hi, Chris.
>
> They are "builtin" module.
> python executable contains the modules already.
>
> But I don't know it's safe to remove them from setup.py.
> There are so many platforms and special build of Python.

I haven't changed the code in any way, btw. This is a vanilla CPython
(at the moment - there have been times I've had patches sitting
around), and this message is, I believe, new.

ChrisA