pip install dependencies in custom directory

Question

I'm trying to install couple of modules via pip into custom directory using flag --target.

e.g.:

pip3 install --target /custom/module/location /path/to/package1

Everything works just fine. By adding /custom/module/location to PYTHONPATH I can use my package1.

But when I try to install package2 which requires package1 (located in /custom/module/location) pip throws:

Could not find a version that satisfies the requirement ...
No matching distribution found ...

Basically:

PYTHONPATH=/custom/module/location
pip3 install --target /custom/module/location /path/to/package1
pip3 install --target /custom/module/location /path/to/package2

does not work, but

pip3 install --user /path/to/package1
pip3 install --user /path/to/package2

works just fine. Is there any way of telling pip to look into custom location /custom/module/location other than PYTHONPATH?

btw when using first method, pip3 list can see the package1

Vineet Jain · Accepted Answer · 2017-11-01 13:19:54Z

5

I think target switch will be used like this:

pip install --target=/home/path/of/directory package_name

You need to add /home/path/of/directory to PYTHONPATH to actually use them from that location.

You can upgrade pip by:-

pip install -U pip

answered Nov 1, 2017 at 13:19

Vineet Jain

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2 Comments

jan-hybs Over a year ago

I'm installing local packages, which is why pip install argument is poiting to a directory containing setup.py

jan-hybs Over a year ago

no virtualenv on the server nor root access, thats why I'm installing modules to custom folder. setup.py installation is working just fine without virtualenv (for example package1 and other pakcages are working fine)

jan-hybs · Accepted Answer · 2017-11-08 13:09:29Z

2

Solved it by using raw setuptools. First add a path to PYTHONPATH and then install local packages.

EXTRAPATH=/home/path/of/directory/lib/python3.5/site-packages
export PYTHONPATH=$PYTHONPATH:$EXTRAPATH
cd /path/to/package1 && python setup.py --prefix=/home/path/of/directory
cd /path/to/package2 && python setup.py --prefix=/home/path/of/directory

answered Nov 8, 2017 at 13:09

jan-hybs

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