virtualenv is not isolated. You can still use packages installed system-wide

As I understand this pipenv shell should activate a virtualenv, isolated from the rest of the system. This is not what’s happening.

$ python -m pipenv.help output

Pipenv version: '11.8.1'

Pipenv location: '/usr/local/lib/python3.6/site-packages/pipenv-11.8.1-py3.6.egg/pipenv'

Python location: '/usr/bin/python'

Other Python installations in PATH:

• 2.7: /usr/bin/python2.7

• 2.7: /usr/bin/python2.7

• 3.6: /usr/bin/python3.6m

• 3.6: /usr/bin/python3.6

• 3.6.4: /usr/bin/python

• 2.7.14: /usr/bin/python2

• 3.6.4: /usr/bin/python3

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.6.4',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '4.15.9-1-ARCH',
 'platform_system': 'Linux',
 'platform_version': '#1 SMP PREEMPT Sun Mar 11 17:54:33 UTC 2018',
 'python_full_version': '3.6.4',
 'python_version': '3.6',
 'sys_platform': 'linux'}

System environment variables:

• LANG
• HISTCONTROL
• DISPLAY
• OLDPWD
• INVOCATION_ID
• EDITOR
• NODE_PATH
• COLORTERM
• TERMINAL
• XDG_VTNR
• XDG_SESSION_ID
• USER
• GOPATH
• PWD
• HOME
• LESSHISTFILE
• JOURNAL_STREAM
• GTK_MODULES
• MAIL
• WINDOWPATH
• TERM
• SHELL
• VTE_VERSION
• QT_IM_MODULE
• XMODIFIERS
• XDG_SEAT
• SHLVL
• PYTHONPATH
• WINDOWID
• MAVEN_OPTS
• LOGNAME
• DBUS_SESSION_BUS_ADDRESS
• XDG_RUNTIME_DIR
• XAUTHORITY
• PATH
• GTK_IM_MODULE
• _
• PIP_PYTHON_PATH
• PYTHONUNBUFFERED

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: /usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:/home/g/.go/bin:/home/g/.node_modules/bin
• SHELL: /bin/bash
• EDITOR: /usr/bin/nvim
• LANG: en_US.UTF-8
• PWD: /home/g/hack

---

---

Expected result

Creating a new project and running pipenv shell should result in a minimal set of installed packages.

Actual result

All the system-wide packages can be imported.

(foo-5Z-S40FS) [g@x220 foo]$ pipenv graph
appdirs==1.4.3
Archey3==0.4
beautifulsoup4==4.6.0
Brlapi==0.6.7
capstone==3.0.4
codegen==1.0
cryptography==2.1.4
  - asn1crypto [required: >=0.21.0, installed: 0.24.0]
  - cffi [required: >=1.7, installed: 1.11.5]
    - pycparser [required: Any, installed: 2.18]
  - idna [required: >=2.1, installed: 2.6]
  - six [required: >=1.4.1, installed: 1.11.0]
curio==0.9
dbfread==2.0.6
decorator==4.2.1
docutils==0.14
Faker==0.8.12
  - python-dateutil [required: >=2.4, installed: 2.7.0]
    - six [required: >=1.5, installed: 1.11.0]
  - six [required: Any, installed: 1.11.0]
  - text-unidecode [required: Any, installed: 1.2]
flake8==3.5.0
  - mccabe [required: >=0.6.0, installed: 0.6.1]
  - pycodestyle [required: >=2.0.0, installed: 2.3.1]
  - pyflakes [required: >=1.5.0, installed: 1.6.0]
  - setuptools [required: >=30, installed: 38.6.0]
gmpy2==2.1.0a1
ipython==6.2.1
ipywidgets==6.0.0
isc==2.0
jedi==0.11.1
  - parso [required: ==0.1.1, installed: 0.1.1]
jsonschema==2.6.0
jupyter-console==5.2.0
leather==0.3.3
  - six [required: >=1.6.1, installed: 1.11.0]
lxml==4.1.1
matplotlib==2.1.2
  - cycler [required: >=0.10, installed: 0.10.0]
    - six [required: Any, installed: 1.11.0]
  - numpy [required: >=1.7.1, installed: 1.14.1]
  - pyparsing [required: !=2.1.6,!=2.0.4,!=2.1.2,>=2.0.1, installed: 2.2.0]
  - python-dateutil [required: >=2.1, installed: 2.7.0]
    - six [required: >=1.5, installed: 1.11.0]
  - pytz [required: Any, installed: 2018.3]
  - six [required: >=1.10, installed: 1.11.0]
mock==2.0.0
  - pbr [required: >=0.11, installed: 3.1.1]
  - six [required: >=1.9, installed: 1.11.0]
namcap==3.2.7
neovim==0.2.4
  - greenlet [required: Any, installed: 0.4.13]
  - msgpack [required: >=0.5.0, installed: 0.5.6]
nltk==3.2.5
  - six [required: Any, installed: 1.11.0]
olefile==0.45.1
  - pyparsing [required: Any, installed: 2.2.0]
  - six [required: Any, installed: 1.11.0]
pandas==0.22.0
  - numpy [required: >=1.9.0, installed: 1.14.1]
  - python-dateutil [required: >=2, installed: 2.7.0]
    - six [required: >=1.5, installed: 1.11.0]
  - pytz [required: >=2011k, installed: 2018.3]
pexpect==4.4.0
pickleshare==0.7.4
Pillow==5.0.0
pipenv==11.8.1
  - certifi [required: Any, installed: 2018.1.18]
  - pip [required: >=9.0.1, installed: 9.0.1]
  - setuptools [required: >=36.2.1, installed: 38.6.0]
  - virtualenv [required: Any, installed: 15.1.0]
  - virtualenv-clone [required: >=0.2.5, installed: 0.3.0]
ply==3.11
progressbar2==3.30.0
  - python-utils [required: >=2.1.0, installed: 2.3.0]
    - six [required: Any, installed: 1.11.0]
prompt-toolkit==1.0.15
  - six [required: >=1.9.0, installed: 1.11.0]
  - wcwidth [required: Any, installed: 0.1.7]
ptyprocess==0.5.2
pyalpm==0.8
PyAudio==0.2.11
pycrypto==2.6.1
pydocstyle==2.1.1
  - six [required: Any, installed: 1.11.0]
  - snowballstemmer [required: Any, installed: 1.2.1]
pyelftools==0.24
pygobject==3.26.1
PyPDF2==1.26.0
pytest==3.4.2
  - attrs [required: >=17.2.0, installed: 17.4.0]
  - pluggy [required: >=0.5,<0.7, installed: 0.6.0]
  - py [required: >=1.5.0, installed: 1.5.2]
  - setuptools [required: Any, installed: 38.6.0]
  - six [required: >=1.10.0, installed: 1.11.0]
python-slugify==1.2.4
  - Unidecode [required: >=0.04.16, installed: 1.0.22]
pytimeparse==1.1.7
pyxdg==0.25
PyYAML==3.12
r2pipe==0.9.8
ROPGadget==5.6
ropper==1.11.6
  - filebytes [required: >=0.9.12, installed: 0.9.15]
scikit-learn==0.19.1
scipy==1.0.0
shodan==1.7.7
  - click [required: Any, installed: 6.7]
  - click-plugins [required: Any, installed: 1.0.3]
    - click [required: >=3.0, installed: 6.7]
  - colorama [required: Any, installed: 0.3.9]
  - requests [required: >=2.2.1, installed: 2.18.4]
    - chardet [required: <3.1.0,>=3.0.2, installed: 3.0.4]
    - idna [required: >=2.5,<2.7, installed: 2.6]
    - urllib3 [required: >=1.21.1,<1.23, installed: 1.22]
  - XlsxWriter [required: Any, installed: 1.0.2]
simplegeneric==0.8.1
simplejson==3.13.2
tensorflow==1.6.0
  - absl-py [required: >=0.1.6, installed: 0.1.10]
    - six [required: Any, installed: 1.11.0]
  - astor [required: >=0.6.0, installed: 0.6.2]
  - gast [required: >=0.2.0, installed: 0.2.0]
  - grpcio [required: >=1.8.6, installed: 1.9.1]
    - protobuf [required: >=3.5.0.post1, installed: 3.5.1]
      - setuptools [required: Any, installed: 38.6.0]
      - six [required: >=1.9, installed: 1.11.0]
    - six [required: >=1.5.2, installed: 1.11.0]
  - numpy [required: >=1.13.3, installed: 1.14.1]
  - protobuf [required: >=3.4.0, installed: 3.5.1]
    - setuptools [required: Any, installed: 38.6.0]
    - six [required: >=1.9, installed: 1.11.0]
  - six [required: >=1.10.0, installed: 1.11.0]
  - tensorboard [required: <1.7.0,>=1.6.0, installed: 1.6.0]
    - bleach [required: ==1.5.0, installed: 1.5.0]
      - html5lib [required: !=0.99999,>=0.999,!=0.9999,<0.99999999, installed: 0.9999999]
        - six [required: Any, installed: 1.11.0]
      - six [required: Any, installed: 1.11.0]
    - html5lib [required: ==0.9999999, installed: 0.9999999]
      - six [required: Any, installed: 1.11.0]
    - markdown [required: >=2.6.8, installed: 2.6.11]
    - numpy [required: >=1.12.0, installed: 1.14.1]
    - protobuf [required: >=3.4.0, installed: 3.5.1]
      - setuptools [required: Any, installed: 38.6.0]
      - six [required: >=1.9, installed: 1.11.0]
    - six [required: >=1.10.0, installed: 1.11.0]
    - werkzeug [required: >=0.11.10, installed: 0.14.1]
    - wheel [required: >=0.26, installed: 0.30.0]
  - termcolor [required: >=1.1.0, installed: 1.1.0]
  - wheel [required: >=0.26, installed: 0.30.0]
unicorn==1.0.1
webencodings==0.5.1
widgetsnbextension==2.0.0
  - notebook [required: >=4.4.1, installed: 5.3.0]
    - ipykernel [required: Any, installed: 4.6.1]
    - ipython-genutils [required: Any, installed: 0.1.0]
    - jinja2 [required: Any, installed: 2.10]
      - MarkupSafe [required: >=0.23, installed: 1.0]
    - jupyter-client [required: >=5.2.0, installed: 5.2.2]
      - jupyter-core [required: Any, installed: 4.4.0]
      - python-dateutil [required: >=2.1, installed: 2.7.0]
        - six [required: >=1.5, installed: 1.11.0]
      - pyzmq [required: >=13, installed: 16.0.3]
      - tornado [required: >=4.1, installed: 4.5.3]
      - traitlets [required: Any, installed: 4.3.2]
    - jupyter-core [required: >=4.4.0, installed: 4.4.0]
    - nbconvert [required: Any, installed: 5.3.1]
      - bleach [required: Any, installed: 1.5.0]
        - html5lib [required: !=0.99999,>=0.999,!=0.9999,<0.99999999, installed: 0.9999999]
          - six [required: Any, installed: 1.11.0]
        - six [required: Any, installed: 1.11.0]
      - entrypoints [required: >=0.2.2, installed: 0.2.3]
      - jinja2 [required: Any, installed: 2.10]
        - MarkupSafe [required: >=0.23, installed: 1.0]
      - jupyter-core [required: Any, installed: 4.4.0]
      - mistune [required: >=0.7.4, installed: 0.8.1]
      - nbformat [required: >=4.4, installed: 4.4.0]
      - pandocfilters [required: >=1.4.1, installed: 1.4.2]
      - pygments [required: Any, installed: 2.2.0]
      - testpath [required: Any, installed: 0.3.1]
      - traitlets [required: >=4.2, installed: 4.3.2]
    - nbformat [required: Any, installed: 4.4.0]
    - Send2Trash [required: Any, installed: 1.5.0]
    - terminado [required: >=0.8.1, installed: 0.8.1]
    - tornado [required: >=4, installed: 4.5.3]
    - traitlets [required: >=4.2.1, installed: 4.3.2]
xlrd==1.1.0
youtube-dl==2018.3.14

Steps to replicate

mkdir foo
cd foo
pipenv install
pipenv shell
pipenv graph # , or pip list

[ksonj]

My general recommendation is to not ever use pacman for python packages and when at all possible install with pip install --user.

[uranusjr]

No matter why you set it in the first place, you need to unset it when you want isolation. PYTHONPATH is an ultimate override to other rules. If you set it, Pipenv honours it. All Python virtual environment tools do this. You can’t expect otherwise because that’s how the whole ecosystem is designed to work.