add code

.gitignore

@@ -0,0 +1,161 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+

README.md

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+# venvmgr
+
+_👀 Manage Python virtual environments_
+
+A command line application to manage Python virtual envionrments (venvs). 
+
+Create a venv:
+
+```bash
+$ vm create example
+```
+Use it:
+
+```bash
+$ vm python --venv example code.py
+```
+
+The assoications between files and venvs is recorded, such that
+
+```bash
+$ vm python code.py
+```
+
+uses the `example` venv. We might want install packages in this venv, e.g.,
+
+```bash
+$ vm pip --venv example scipy
+```
+
+We now might want to check the venvs:
+
+```bash
+$ vm ls
+example
+created at 2023-07-03 12:07:48.872147
+activate: source /home/user/.venvmgr/example/bin/activate
+used by: /home/user/code.py
+```
+
+Lastll, we might want to activate this venv
+
+```bash
+$ vm activate example
+```
+
+## Install 💥
+
+```bash
+pipx install venvmgr
+```

pyproject.toml

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+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "venvmgr"
+version = "0.1.0"
+dependencies = ["click"]
+
+[project.scripts]
+vm = "venvmgr.cli:commands"

src/venvmgr/activate

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+
+#!/bin/bash
+
+source $HOME/.bashrc
+source /home/andrew/.venvmgr/everyday/bin/activate

src/venvmgr/cli.py

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+"""
+CLI for venv manager
+====================
+"""
+
+
+import os
+import click
+
+from . import venvmgr
+from . import config
+
+
+__version__ = "0.1.0"
+
+
+def get_venv_names(ctx, args, incomplete):
+    return os.listdir(config.VENV_DIR)
+
+
+@click.group()
+@click.version_option(__version__)
+def commands():
+    pass
+
+
+@click.command(context_settings=dict(ignore_unknown_options=True))
+@click.argument('file', required=False, default=None,
+                type=click.Path(exists=True))
+@click.option('--venv',
+              type=click.STRING,
+              default=None,
+              required=False,
+              shell_complete=get_venv_names,
+              help="Name of venv")
+@click.argument('args', nargs=-1, type=click.UNPROCESSED)
+def python(file, venv, args):
+    """
+    Python though with a venv argument
+
+    If no VENV provided but a FILE is provided, uses a VENV inferred from FILE
+    """
+    venvmgr.python(venv, file, *args)
+
+
+@click.command()
+@click.option('-l', '--long', type=bool, default=False,
+              is_flag=True, help='long listing format')
+@click.argument('name', nargs=-1, required=False,
+                type=click.STRING, shell_complete=get_venv_names)
+def ls(long, name):
+    """
+    List information about venvmgr known venvs
+    """
+    click.echo_via_pager("\n".join(venvmgr.ls(name, long)))
+
+
+@click.command()
+@click.argument('name', type=click.STRING, shell_complete=get_venv_names)
+@click.argument('file', type=click.Path(exists=True), nargs=-1)
+def associate(name, file):
+    """
+    Associate venv NAME with FILE
+    """
+    venvmgr.associate(name, file)
+
+
+@click.command()
+@click.argument('name', type=click.STRING, shell_complete=get_venv_names)
+@click.option('-r', '--requirement',
+              type=click.Path(exists=True),
+              default=None,
+              required=False,
+              help="Install from the given requirements file")
+def create(name, requirement):
+    """
+    Create NAME venv
+    """
+    venvmgr.create(name, requirement)
+
+
+@click.command()
+@click.argument('name', type=click.STRING, shell_complete=get_venv_names)
+def rm(name):
+    """
+    Remove NAME venv
+    """
+    venvmgr.rm(name)
+
+
+@click.command(context_settings=dict(ignore_unknown_options=True))
+@click.option('--venv', type=click.STRING, required=True,
+              shell_complete=get_venv_names, help="Name of venv")
+@click.argument('args', nargs=-1, type=click.UNPROCESSED)
+def pip(venv, args):
+    """
+    Pip though with venv argument
+    """
+    venvmgr.pip(venv, *args)
+
+
+@click.command()
+@click.argument('dir', type=click.STRING)
+def add(dir):
+    """
+    Add a venv from DIR created outside of vm
+    """
+    venvmgr.add(dir)
+
+
+@click.command()
+@click.argument('name', type=click.STRING, shell_complete=get_venv_names)
+def annotate(name):
+    """
+    Annotate NAME venv
+    """
+    venvmgr.annotate(name)
+
+
+@click.command()
+def home():
+    """
+    Location of venvmgr home directory
+    """
+    click.echo(config.VENV_DIR)
+
+
+@click.command()
+def dotfile():
+    """
+    Location of venvmgr configuration file
+    """
+    click.echo(config.CONFIG_FILE)
+
+
+@click.command()
+@click.argument('name', type=click.STRING, shell_complete=get_venv_names)
+def activate(name):
+    """
+    Activate NAME venv
+    """
+    venvmgr.activate(name)
+
+
+commands.add_command(create)
+commands.add_command(rm)
+commands.add_command(python)
+commands.add_command(ls)
+commands.add_command(pip)
+commands.add_command(add)
+commands.add_command(annotate)
+commands.add_command(associate)
+commands.add_command(home)
+commands.add_command(dotfile)
+commands.add_command(activate)