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no longer able to manage projects with `python<3.6`?

See original GitHub issue

Issue description

Since requiring python>=3.6, it seems pipenv can no longer manage projects using python<3.6.

Expected result

pipenv to continue to manage projects with python<3.6

Actual result

pipenv fails to resolve dependencies with SyntaxError: invalid syntax

Steps to replicate

$ pipenv install --two requests --verbose
Using python: 2
Path to python: /usr/bin/python2.7
Creating a virtualenv for this project...
Pipfile: /private/var/folders/wr/gcv7765n6v3118gtwtyr8x9r0000gn/T/tmp.YreZXAo6/Pipfile
Using /usr/bin/python2.7 (2.7.18) to create virtualenv...
⠴ Creating virtual environment...created virtual environment CPython2.7.18.final.0-64 in 288ms
  creator CPython2macOsFramework(dest=/Users/Branch/.local/share/virtualenvs/tmp.YreZXAo6-ZAbwaU-O, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/Users/Branch/Library/Application Support/virtualenv)
    added seed packages: pip==20.3.4, setuptools==44.1.1, wheel==0.37.0
  activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator

✔ Successfully created virtual environment!
Virtualenv location: /Users/Branch/.local/share/virtualenvs/tmp.YreZXAo6-ZAbwaU-O
Creating a Pipfile for this project...
Installing requests...
Installing package: requests
Writing supplied requirement line to temporary file: 'requests'
Installing 'requests'
⠙ Installing requests...$ /Users/Branch/.local/share/virtualenvs/tmp.YreZXAo6-ZAbwaU-O/bin/python -m pip install --verbose --upgrade --exists-action=i -r /var/folders/wr/gcv7765n6v3118gtwtyr8x9r0000gn/T/pipenv-7w4z_jj8-requirements/pipenv-qtiq5wf5-requirement.txt -i https://pypi.org/simple
Using source directory: '/Users/Branch/.local/share/virtualenvs/tmp.YreZXAo6-ZAbwaU-O/src'
Adding requests to Pipfile's [packages]...
✔ Installation Succeeded
Pipfile.lock not found, creating...
Locking [dev-packages] dependencies...
Locking [packages] dependencies...
Building requirements...
Resolving dependencies...
  File "/Users/Branch/.local/share/pipx/venvs/pipenv/lib/python3.9/site-packages/pipenv/resolver.py", line 25
    path_options = [name, f"{name}.py"]
                                     ^
SyntaxError: invalid syntax
✘ Locking Failed!
$ pipenv --support

Pipenv version: '2021.11.9'

Pipenv location: '/Users/Branch/.local/share/pipx/venvs/pipenv/lib/python3.9/site-packages/pipenv'

Python location: '/Users/Branch/.local/share/pipx/venvs/pipenv/bin/python'

Python installations found:

  • 3.9.7: /usr/local/bin/python3
  • 3.9.7: /usr/local/bin/python3.9
  • 3.9.6: /Users/Branch/.local/share/pyenv/versions/3.9.6/bin/python3
  • 3.9.0: /Users/Branch/.local/share/pyenv/versions/3.9.0/bin/python3
  • 3.8.9: /usr/bin/python3
  • 3.8.9: /Users/Branch/.local/share/pyenv/versions/3.8.9/bin/python3
  • 3.7.9: /usr/local/bin/python3.7m
  • 3.7.9: /usr/local/bin/python3.7
  • 3.7.9: /Users/Branch/.local/share/pyenv/versions/3.7.9/bin/python3
  • 3.5.10: /Users/Branch/.local/share/pyenv/versions/3.5.10/bin/python3
  • 2.7.18: /usr/bin/python
  • 2.7.18: /usr/bin/python2
  • 2.7.18: /usr/bin/python2.7

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.9.7',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '21.1.0',
 'platform_system': 'Darwin',
 'platform_version': 'Darwin Kernel Version 21.1.0: Wed Oct 13 17:33:23 PDT '
                     '2021; root:xnu-8019.41.5~1/RELEASE_X86_64',
 'python_full_version': '3.9.7',
 'python_version': '3.9',
 'sys_platform': 'darwin'}

System environment variables:

  • ZDOTDIR
  • _tide_reset_to_color_dirs
  • SHELL
  • GEM_SPEC_CACHE
  • LANG
  • HOMEBREW_BUNDLE_FILE
  • XPC_FLAGS
  • GOPATH
  • NPM_CONFIG_INIT_MODULE
  • GRADLE_USER_HOME
  • PIPX_HOME
  • HOMEBREW_UPDATE_REPORT_ONLY_INSTALLED
  • __CF_USER_TEXT_ENCODING
  • ITERM_SESSION_ID
  • AWS_ACCESS_KEY_ID
  • USER
  • JABBA_HOME
  • PATH
  • tide_rustc_icon
  • COLORTERM
  • tide_show_kubectl_on
  • XDG_DATA_HOME
  • XDG_CONFIG_HOME
  • TERM_SESSION_ID
  • PYTHONSTARTUP
  • BUNDLE_USER_PLUGIN
  • TERM_PROGRAM_VERSION
  • __CFBundleIdentifier
  • XDG_CACHE_HOME
  • HOMEBREW_BAT
  • XDG_STATE_HOME
  • COLORFGBG
  • NODE_REPL_HISTORY
  • HOME
  • SSH_AUTH_SOCK
  • fish_greeting
  • LC_TERMINAL_VERSION
  • LOGNAME
  • tide_show_gcloud_on
  • SHLVL
  • XDG_BIN_HOME
  • TERM_PROGRAM
  • DOCKER_CONFIG
  • GNUPGHOME
  • XDG_BIN_DIRS
  • NPM_CONFIG_PREFIX
  • ITERM_PROFILE
  • MAVEN_OPTS
  • GOBIN
  • EDITOR
  • LESSHISTFILE
  • _tide_prompt_and_frame_color
  • _tide_color_truncated_dirs
  • PYTHONDONTWRITEBYTECODE
  • NPM_CONFIG_CACHE
  • NPM_CONFIG_DEVDIR
  • MANPAGER
  • NPM_CONFIG_TMP
  • FNM_DIR
  • PSQLRC
  • NPM_CONFIG_USERCONFIG
  • XPC_SERVICE_NAME
  • PYENV_ROOT
  • TMPDIR
  • GEM_HOME
  • PWD
  • BUNDLE_USER_CACHE
  • tide_kubectl_icon
  • tide_direnv_denied_color
  • BUNDLE_USER_CONFIG
  • COMMAND_MODE
  • RUSTUP_HOME
  • ALL_REPOS_CONFIG_FILENAME
  • TERM
  • PSQL_HISTORY
  • LC_TERMINAL
  • CARGO_HOME
  • AWS_DEFAULT_REGION
  • NO_UPDATE_NOTIFIER
  • PIPX_DEFAULT_PYTHON
  • NPM_TOKEN
  • POETRY_VIRTUALENVS_IN_PROJECT
  • tide_direnv_bg_color
  • BW_SESSION
  • GIT_SSH_COMMAND
  • tide_node_icon
  • GITHUB_TOKEN
  • tide_show_pulsarctl_on
  • PIP_DISABLE_PIP_VERSION_CHECK
  • tide_transient_prompt
  • KUBECONFIG
  • PIP_REQUIRE_VIRTUALENV
  • tide_direnv_color
  • PAGER
  • _tide_location_color
  • tide_node_color
  • DIRENV_LOG_FORMAT
  • AWS_SECRET_ACCESS_KEY
  • TEXMFHOME
  • _tide_color_anchors
  • PIP_SHIMS_BASE_MODULE
  • PIP_PYTHON_PATH
  • PYTHONFINDER_IGNORE_UNSUPPORTED

Pipenv–specific environment variables:

Debug–specific environment variables:

  • PATH: /Users/Branch/.local/share/cargo/bin:/Users/Branch/.local/share/npm/bin:/Users/Branch/.local/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Library/TeX/texbin
  • SHELL: /usr/local/bin/fish
  • EDITOR: code --wait
  • LANG: en_US.UTF-8
  • PWD: /var/folders/wr/gcv7765n6v3118gtwtyr8x9r0000gn/T/tmp.YreZXAo6

Contents of Pipfile (‘/private/var/folders/wr/gcv7765n6v3118gtwtyr8x9r0000gn/T/tmp.YreZXAo6/Pipfile’):

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
requests = "*"

[dev-packages]

[requires]
python_version = "2.7"

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:5 (2 by maintainers)

github_iconTop GitHub Comments

4reactions
branchvincentcommented, Nov 10, 2021

I see, I understand now. May I suggest documenting that more clearly in the release notes and README? I did search both before filing this issue. Apologies if I overlooked this.

In addition to the docs, I imagine pipenv --two should be removed and ideally pipenv install should refuse to select a python that it knowingly cannot manage (which is what led to my confusion here). Does that sound reasonable to you?

0reactions
frostmingcommented, Nov 10, 2021

Oh, pipenv drops support for Python < 3.6 on the recent release, as well as managing the environment for the old python versions.

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