About

This is a skeleton Python package to test setup.py and various ways of installing a Python package from a source tree and its dependencies (see requirements.txt) using pip + setuptools + setup.py + venv/pipenv. We don't (yet) cover pyproject.toml or package managers other than pip, such as conda.

This repo is not a replacement for the pypa sampleproject. Rather, we use installtest.sh to install/uninstall the package in various ways and analyze where files have been placed in order to understand how different install methods affect the system. This is useful for situations where using docker or cheaper install env separation tech such as venvs is not used and one still needs to separate manually installed packages from those installed by a system package manager such as apt on Debian. Also, this knowledge helps to debug situations such as "Hey, I installed the foo package using $some_method but my Python says No module named 'foo'. What's up?".

Key observations

system pip installs into local site-packages (~/.local/lib/pythonX.Y/site-packages, at least on Debian)
change pip install dir using PYTHONUSERBASE
pip copies the package (no .egg files)
setup.py install creates .egg files
pip install -e is the same as setup.py develop, creates a file <package>.egg-link which points to the source tree
venv --without-pip uses system pip and does not install into venv
dev install (pip install -e) doesn't apply to dependencies (see requirements.txt)
pipenv is a package manager for your dependencies, not an installer for your project, use pipenv install && pipenv run pip install .

Many ways to create a venv

Never use venv --without-pip since this will use system pip and make the venv ineffective! However, venv --system-site-packages is OK for access to system site package, but no packages will be installed there.

The recommended way to set up a venv is thus

$ cd /path/to/project

# pure python
$ python3 -m venv --symlinks [--system-site-packages] awesome_venv
$ . ./awesome_venv/bin/activate
(awesome_venv)$ pip install -r requirements.txt  # or pip install dep1 dep2 ...
(awesome_venv)$ pip install [-e] .

# virtualenvwrapper (--symlinks is default)
$ mkvirtualenv [--system-site-packages] -p /usr/bin/python3 awesome_venv
(awesome_venv)$ pip install -r requirements.txt
(awesome_venv)$ pip install [-e] .

# pipenv
$ pipenv install
# then either
$ pipenv shell
(project-08xy15foo)$ pip install .
# or
$ pipenv run pip install .

pipenv

Note that pipenv installs venvs by default to ~/.virtualenvs (e.g. ~/.virtualenvs/project-08xy15foo, where 08xy15foo is the hash of /path/to/project). Since virtualenvwrapper uses the same dir, you can remove venvs with rmvirtualenv as well. However, the command for leaving pipenv's venv is exit instead of deactivate. While the latter also works, it may leave env vars such as PIPENV_ACTIVE behind.

Usage

Adapt $version in installtest.sh to your Python version. The script will install and uninstall the package using various methods and show where files are copied to. No sudo is used, so everything is happening in $HOME.

The script writes a log file installtest.log with detailed command output.

We assume that we have a naming scheme for the package "samplepkg" according to the pypa sampleproject

/path/to/samplepkg
/path/to/samplepkg/setup.py
/path/to/samplepkg/src/samplepkg/__init__.py
/path/to/samplepkg/src/samplepkg/foo.py

If not, then change $pkgname in the script.

You can also use installtest.sh on other projects.

$ cd /path/to/myproject
$ /path/to/samplepkg/installtest.sh

Results from a run of installtest.sh, started from /home/elcorto/soft/git/samplepkg/:

pip3 install .
                                                            which pip3 : /usr/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                     /home/elcorto/.local/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg/ samplepkg-1.2.3.dist-info/

PYTHONUSERBASE=/home/elcorto/soft pip3 install .
                                                            which pip3 : /usr/bin/pip3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                       /home/elcorto/soft/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg/ samplepkg-1.2.3.dist-info/

PYTHONPATH=/home/elcorto/soft/lib/python3.7/site-packages/ python3 setup.py install --prefix=/home/elcorto/soft
                                                            which pip3 : /usr/bin/pip3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                       /home/elcorto/soft/lib/python3.7/site-packages/ : dummy_test-0.1.3-py3.7.egg/ samplepkg-1.2.3-py3.7.egg
       /home/elcorto/soft/lib/python3.7/site-packages/easy-install.pth : ./samplepkg-1.2.3-py3.7.egg ./dummy_test-0.1.3-py3.7.egg

pip3 install -e .
                                                            which pip3 : /usr/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                     /home/elcorto/.local/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg.egg-link
   /home/elcorto/.local/lib/python3.7/site-packages/samplepkg.egg-link : /home/elcorto/soft/git/samplepkg/src/
     /home/elcorto/.local/lib/python3.7/site-packages/easy-install.pth : /home/elcorto/soft/git/samplepkg/src/

PYTHONUSERBASE=/home/elcorto/soft pip3 install -e .
                                                            which pip3 : /usr/bin/pip3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                       /home/elcorto/soft/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg.egg-link
     /home/elcorto/soft/lib/python3.7/site-packages/samplepkg.egg-link : /home/elcorto/soft/git/samplepkg/src/
       /home/elcorto/soft/lib/python3.7/site-packages/easy-install.pth : /home/elcorto/soft/git/samplepkg/src/

PYTHONPATH=/home/elcorto/soft/lib/python3.7/site-packages/ python3 setup.py develop --prefix=/home/elcorto/soft
                                                            which pip3 : /usr/bin/pip3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                       /home/elcorto/soft/lib/python3.7/site-packages/ : dummy_test-0.1.3-py3.7.egg/ samplepkg.egg-link
     /home/elcorto/soft/lib/python3.7/site-packages/samplepkg.egg-link : /home/elcorto/soft/git/samplepkg/src/
       /home/elcorto/soft/lib/python3.7/site-packages/easy-install.pth : /home/elcorto/soft/git/samplepkg/src/ ./dummy_test-0.1.3-py3.7.egg

python3.7 -m venv --without-pip --symlinks /home/elcorto/__test_venv__/; . /home/elcorto/__test_venv__/bin/activate; pip3 install .
                                                            which pip3 : /usr/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                     /home/elcorto/.local/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg/ samplepkg-1.2.3.dist-info/

python3.7 -m venv --symlinks /home/elcorto/__test_venv__/; . /home/elcorto/__test_venv__/bin/activate; pip3 install .
                                                            which pip3 : /home/elcorto/__test_venv__/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
              /home/elcorto/__test_venv__/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg/ samplepkg-1.2.3.egg-info/

PIPENV_VENV_IN_PROJECT=1 pipenv install . >> installtest.log 2>&1; . ./.venv/bin/activate
                                                            which pip3 : /home/elcorto/soft/git/samplepkg/.venv/bin/pip3
                                                             pip3 list : dummy-test 0.1.3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3
                                  ./.venv/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/

PIPENV_VENV_IN_PROJECT=1 pipenv install -e . >> installtest.log 2>&1; . ./.venv/bin/activate
                                                            which pip3 : /home/elcorto/soft/git/samplepkg/.venv/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                                  ./.venv/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg.egg-link
                ./.venv/lib/python3.7/site-packages/samplepkg.egg-link : /home/elcorto/soft/git/samplepkg/src/
                  ./.venv/lib/python3.7/site-packages/easy-install.pth : /home/elcorto/soft/git/samplepkg/src/

PIPENV_VENV_IN_PROJECT=1 pipenv install >> installtest.log 2>&1; . ./.venv/bin/activate; pip3 install .
                                                            which pip3 : /home/elcorto/soft/git/samplepkg/.venv/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                                  ./.venv/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg/ samplepkg-1.2.3.dist-info/

PIPENV_VENV_IN_PROJECT=1 pipenv install >> installtest.log 2>&1; . ./.venv/bin/activate; pip3 install -e .
                                                            which pip3 : /home/elcorto/soft/git/samplepkg/.venv/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                                  ./.venv/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg.egg-link
                ./.venv/lib/python3.7/site-packages/samplepkg.egg-link : /home/elcorto/soft/git/samplepkg/src/
                  ./.venv/lib/python3.7/site-packages/easy-install.pth : /home/elcorto/soft/git/samplepkg/src/

(PIPENV_VENV_IN_PROJECT=1 pipenv install && pipenv run pip install .) >> installtest.log 2>&1; . ./.venv/bin/activate
                                                            which pip3 : /home/elcorto/soft/git/samplepkg/.venv/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3
                                  ./.venv/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg/ samplepkg-1.2.3.dist-info/

(PIPENV_VENV_IN_PROJECT=1 pipenv install && pipenv run pip install -e .) >> installtest.log 2>&1; . ./.venv/bin/activate
                                                            which pip3 : /home/elcorto/soft/git/samplepkg/.venv/bin/pip3
                                                             pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                           PYTHONUSERBASE=/home/elcorto/soft pip3 list : dummy-test 0.1.3  samplepkg 1.2.3 /home/elcorto/soft/git/samplepkg/src
                                  ./.venv/lib/python3.7/site-packages/ : dummy_test/ dummy_test-0.1.3.dist-info/ samplepkg.egg-link
                ./.venv/lib/python3.7/site-packages/samplepkg.egg-link : /home/elcorto/soft/git/samplepkg/src/
                  ./.venv/lib/python3.7/site-packages/easy-install.pth : /home/elcorto/soft/git/samplepkg/src/

Upload a package to pypi

See

Install pypa's upload tool twine.

# Debian-ish system
$ sudo apt install twine
# Any system
$ pip install twine

Build package data for upload to pypi.

With setup.py:

$ rm -rf build dist $(find . -name "*.egg-info")
$ python3 setup.py sdist bdist_wheel

With pyproject.toml:

Install the build tool first.

# Debian-ish system
$ sudo apt install python3-build
# Any system
$ pip install build

Build

$ rm -rf dist
$ python3 -m build

Test

$ twine upload --repository testpypi dist/*

$ mkvirtualenv foo

# this may fail
(foo) $ pip search --index https://test.pypi.org/simple mypackage

# this usually works
(foo) $ pip install --index-url https://test.pypi.org/simple [--no-deps] mypackage
(foo) $ deactivate
$ rmvirtualenv foo

Real upload

$ twine upload dist/*

or use this when using a pypi API token:

$ TWINE_USERNAME=__token__ TWINE_PASSWORD=pypi-xxxsupersecretyyy twine upload dist/*

If you use https://www.passwordstore.org/, e.g.

$ pass pypi/api-token
pypi-xxxsupersecretyyy
__token__

then the above command reads

$ TWINE_USERNAME=__token__ TWINE_PASSWORD=$(pass pypi/api-token | head -n1) twine upload dist/*

Name		Name	Last commit message	Last commit date
Latest commit History 23 Commits
src/samplepkg		src/samplepkg
.gitignore		.gitignore
README.md		README.md
fmt.py		fmt.py
installtest.sh		installtest.sh
requirements.txt		requirements.txt
setup.py		setup.py

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