[issue31916] ensurepip not honoring value of $(DESTDIR) - pip not installed

[Cheryl Sabella]

Cheryl Sabella  added the comment:

Closing as third-party as @yan12125's report pinpoints the cause of the issue 
as part of pip.

--
nosy: +cheryl.sabella
resolution:  -> third party
stage:  -> resolved
status: open -> closed

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[issue31916] ensurepip not honoring value of $(DESTDIR) - pip not installed

[Chi Hsuan Yen]

Chi Hsuan Yen  added the comment:

This is a pip bug https://github.com/pypa/pip/issues/3063

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nosy: +Chi Hsuan Yen

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[issue31916] ensurepip not honoring value of $(DESTDIR) - pip not installed

[multimiler]

New submission from multimiler :

I am building python from source for installation at /opt/python-3.6.3.  The 
result of the build will be installed in /somewhere/deb-pkg-build-dir.  I 
configure, build, and install, the package as follows:

./configure --prefix=/opt/python-$VER --enable-optimizations 
--with-ensurepip=install
make
make install DESTDIR=/somewhere/deb-pkg-build-dir

At the very end of the build log I find:

Requirement already satisfied: setuptools in 
/opt/python-3.6.3/lib/python3.6/site-packages

As a result PIP is not installed.  This is an error.  The pip installation 
process should be looking in $(DESTDIR)/opt/python-3.6.3.  Instead it is 
looking at /opt/python-3.6.3/... which is the python installation on the 
current build host -- NOT INSTALLED BY THIS BUILD.

In the top-level Makefile.pre I find the following that runs ensurepip to 
install pip:

install:  commoninstall bininstall maninstall
if test "x$(ENSUREPIP)" != "xno"  ; then \
case $(ENSUREPIP) in \
upgrade) ensurepip="--upgrade" ;; \
install|*) ensurepip="" ;; \
esac; \
$(RUNSHARED) $(PYTHON_FOR_BUILD) -m ensurepip \
$$ensurepip --root=$(DESTDIR)/ ; \
fi

As you can see $(DESTDIR) is passed into ensurepip, but it is never used when 
checking for pip existence.

--
components: Installation
messages: 305351
nosy: multimiler
priority: normal
severity: normal
status: open
title: ensurepip not honoring value of $(DESTDIR) - pip not installed
type: behavior
versions: Python 3.6

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