Re: Replace uses of deprecated Python module distutils.sysconfig

On 1/18/22 19:18, Tom Lane wrote:
> I wrote:
>> Are we sure it's an issue within Python, rather than something we
>> could dodge by invoking sysconfig differently? It's hard to believe
>> that sysconfig could be totally unfit for the purpose of finding out
>> the include path and would remain so for multiple years.
> I dug up a Debian 9 image and found that I could reproduce the problem
> against its python2 (2.7.13) installation, but not its python3 (3.5.3):
>
> $ python2 -m sysconfig | grep include
> include = "/usr/local/include/python2.7"
> platinclude = "/usr/local/include/python2.7"
> ...
> $ python3 -m sysconfig | grep include
> include = "/usr/include/python3.5m"
> platinclude = "/usr/include/python3.5m"
> ...
>
> Looking at the buildfarm animals that failed this way, 10 out of 11
> are using python 2.x. The lone exception is Andrew's prion. I wonder
> if there is something unusual about its python3 installation.

It's an Amazon Linux instance, and using their packages, which seem a
bit odd (there's nothing in /usr/local/include). Maybe we should be
looking at INCLUEPY?

[ec2-user(at)ip-172-31-22-42 bf]$ python3 -m sysconfig | grep include
    include = "/usr/local/include/python3.6m"
    platinclude = "/usr/local/include/python3.6m"
    CONFIG_ARGS = "'--build=x86_64-redhat-linux-gnu'
'--host=x86_64-redhat-linux-gnu' '--target=x86_64-amazon-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64'
'--libexecdir=/usr/libexec' '--localstatedir=/var'
'--sharedstatedir=/var/lib' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--enable-ipv6' '--enable-shared'
'--with-computed-gotos=yes' '--with-dbmliborder=gdbm:ndbm:bdb'
'--with-system-expat' '--with-system-ffi'
'--enable-loadable-sqlite-extensions' '--with-dtrace' '--with-valgrind'
'--without-ensurepip' '--enable-optimizations'
'build_alias=x86_64-redhat-linux-gnu'
'host_alias=x86_64-redhat-linux-gnu'
'target_alias=x86_64-amazon-linux-gnu' 'CFLAGS=-O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC
-fwrapv  ' 'LDFLAGS= -g  ' 'CPPFLAGS= '
'PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'"
    CONFINCLUDEDIR = "/usr/include"
    CONFINCLUDEPY = "/usr/include/python3.6m"
    INCLDIRSTOMAKE = "/usr/include  /usr/include/python3.6m"
    INCLUDEDIR = "/usr/include"
    INCLUDEPY = "/usr/include/python3.6m"

I have upgraded it to python 3.8, but got similar results.

cheers

andrew

--
Andrew Dunstan
EDB: https://www.enterprisedb.com