[issue6074] .pyc files created readonly if .py file is readonly, python won't overwrite

[Marco]

Marco <marcusbu at gmail.com> added the comment:

It seems Python is using a default mask to compile modules.
If you open a file b.py as "r", and you import it from a.py, you can see
that b.pyc is:
-rwxr-xr-x 1 marco marco    9 24 mag 16:17 a.py
-r--r--r-- 1 marco marco   10 24 mag 16:17 b.py
-rw-r--r-- 1 marco marco  122 24 mag 16:46 b.pyc

If you try to run a.py:
-rwxr-xr-x 1 marco marco    9 24 mag 16:17 a.py
-r-xr-xr-x 1 marco marco   10 24 mag 16:17 b.py

you'll get:
-rw-r--r-- 1 marco marco  122 24 mag 16:49 b.pyc

as you can see, there is a default "mode" to create compiled modules...

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nosy: +markon

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<http://bugs.python.org/issue6074>
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