.pre-commit-config.yaml

@@ -16,14 +16,7 @@ repos:
     hooks:
       - id: black
         language_version: python
-  - repo: https://github.com/charliermarsh/ruff-pre-commit
+  - repo: https://github.com/pycqa/flake8
-    rev: 'v0.0.245'
+    rev: 6.0.0
     hooks:
-      - id: ruff
+      - id: flake8
-  - repo: local
-    hooks:
-      - id: set-version
-        language: script
-        name: sets __version__ in viv.py
-        entry: ./scripts/bump-dev.sh
-        files: viv.py$

Makefile

@@ -10,7 +10,6 @@ types: ## run mypy
 bump-version: ## update version and tag commit
 	@echo "bumping to version => $(VERSION)"
 	@sed -i 's/__version__ = ".*"/__version__ = "$(VERSION)"/g' src/viv/viv.py
-	@sed 's/--branch .* g/--branch $(VERSION) g/g' README.md
 	@git add src/viv/viv.py && git commit -m "chore: bump version"
 	@git tag v$(VERSION)
 
@@ -23,16 +22,11 @@ install: ## symlink to $PREFIX
 uninstall: ## delete $(PREFIX)/viv
 	rm $(PREFIX)/viv
 
-TAPES = demo freeze list-info-remove
+docs: docs/demo.gif docs/freeze.gif ## generate usage examples
-GIFS := $(foreach n, $(TAPES), docs/$(n).gif)
-docs: $(GIFS) ## generate usage examples
 
 docs/%.gif: docs/%.tape
 	viv rm $$(viv l -q)
-	cd docs; vhs < $*.tape
+	vhs < $<
-
-clean: ## remove build artifacts
-	rm -rf {build,dist}
 
 EXAMPLES = cli.py sys_path.py exe_specific.py frozen_import.py named_env.py scrape.py
 generate-example-vivens: ##

README.md

@@ -11,34 +11,14 @@
 </div>
 <br />
 
-See [usage](https://github.com/daylinmorgan/viv/blob/main/docs/usage.md) for more demo gifs.
-
----
-
-Python is a great choice to quickly prototype or accomplish small tasks in scripts.
-However, leveraging it's vast ecosystem can be tedious for one-off or rarely used scripts.
-This is were `viv` comes in handy.
-
-`Viv` is a standalone dependency-free `venv` creator.
-It is meant to be invoked in any script that has third-party dependencies,
-prior to loading of any of the external modules.
-
-These `venvs` can be identified by name or by their specification.
-In any case they will be re-used across scripts (and generated on-demand, if needed).
-
-**Importantly**, `viv` will remove your user site directory (`python -m 'import site;print(site.USER_SITE)'`),
-to ensure the script isn't using anything outside the standard library and the `viv`-managed `venv`.
-
 ## Setup
 
-### Manual (Recommended)
-
 Start by cloning the repo and symlinking the script for access to the CLI.
 By default it will symlink `./src/viv/viv.py` to `~/bin/viv`.
 You can set `PREFIX` to symlink to a different location.
 
 ```sh
-git clone --depth 1 --branch v22.12a3 git@github.com:daylinmorgan/viv.git ~/.viv
+git clone git@github.com:daylinmorgan/viv.git ~/.viv
 cd ~/.viv
 make install # or PREFIX=~/.local/bin make install
 ```
@@ -49,107 +29,20 @@ Place this directory on the python path in your rc file.
 export PYTHONPATH="$PYTHONPATH:$HOME/.viv/src"
 ```
 
-Advanced users may recognize that principally,
+Then in any python script with external dependencies you can add this line.
-the module just needs to be recognized at run time
-and the single script at `./src/viv/viv.py` can be invoked directly for the CLI.
-How you accomplish these options is ultimately up to you but the above instructions can get you started.
 
-### Pypi (Not Recommended)
+```python
-
+__import__("viv").activate("click")
-```sh
-pip install viv
 ```
 
-Why is this *not recommended*? Mainly, because `viv` is all about hacking your `sys.path`.
-Placing it in it's own virtual environment or installing in a user site directory may complicate this endeavor.
-
 ## Usage
 
-In any python script with external dependencies you can add this line,
+To remove all viv venvs:
-to automate `vivenv` creation and installation of dependencies.
-
-```python
-__import__("viv").use("click")
-```
-
-To remove all `vivenvs`:
-
 ```sh
 viv remove $(viv list -q)
 ```
 
-# Standalone Viv
-
-*Requires* `python>=3.8`
-
-Supposing you want to increase the portability of your script while still employing `viv`.
-
-The below function can be freely pasted at the top of your scripts and requires
-no modification of your PYTHONPATH or import of additional modules (including downloading/installing `viv`).
-
-It can be auto-generated with for example: `viv freeze <spec> --standalone`.
-
-The only part necessary to modify if copied verbatim from below is the call to `_viv_use`.
-
-output of `viv freeze rich --standalone`:
-```python
-# <<<<< auto-generated by daylinmorgan/viv (v.22.12a3)
-# fmt: off
-def _viv_use(*pkgs: str, track_exe: bool = False, name: str = "") -> None:                               # noqa
-    i,s,m,e,spec=__import__,str,map,lambda x: True if x else False,[*pkgs]                                    # noqa
-    if not {*m(type,pkgs)}=={s}: raise ValueError(f"spec: {pkgs} is invalid")                                 # noqa
-    ge,sys,P,ew=i("os").getenv,i("sys"),i("pathlib").Path,i("sys").stderr.write                               # noqa
-    (cache:=(P(ge("XDG_CACHE_HOME",P.home()/".cache"))/"viv"/"venvs")).mkdir(parents=True,exist_ok=True)      # noqa
-    ((sha256:=i("hashlib").sha256()).update((s(spec)+                                                         # noqa
-     (((exe:=("N/A",s(P(i("sys").executable).resolve()))[e(track_exe)])))).encode()))                         # noqa
-    if (env:=cache/(name if name else (_id:=sha256.hexdigest()))) not in cache.glob("*/") or ge("VIV_FORCE"): # noqa
-        v=e(ge("VIV_VERBOSE"));ew(f"generating new vivenv -> {env.name}\n")                                   # noqa
-        i("venv").EnvBuilder(with_pip=True,clear=True).create(env)                                            # noqa
-        with (env/"pip.conf").open("w") as f:f.write("[global]\ndisable-pip-version-check=true")              # noqa
-        if (p:=i("subprocess").run([env/"bin"/"pip","install","--force-reinstall",*spec],text=True,           # noqa
-            stdout=(-1,None)[v],stderr=(-2,None)[v])).returncode!=0:                                          # noqa
-            if env.is_dir():i("shutil").rmtree(env)                                                           # noqa
-            ew(f"pip had non zero exit ({p.returncode})\n{p.stdout}\n");sys.exit(p.returncode)                # noqa
-        with (env/"viv-info.json").open("w") as f:                                                            # noqa
-            i("json").dump({"created":s(i("datetime").datetime.today()),"id":_id,"spec":spec,"exe":exe},f)    # noqa
-    sys.path = [p for p in (*sys.path,s(*(env/"lib").glob("py*/si*"))) if p!=i("site").USER_SITE]             # noqa
-_viv_use("markdown-it-py==2.2.0", "mdurl==0.1.2", "Pygments==2.14.0", "rich==13.3.2")                    # noqa
-# fmt: on
-# >>>>> code golfed with <3
-```
-
 ## Alternatives
 
-### [pip-run](https://github.com/jaraco/pip-run)
+- `pipx`
-
+- `pip-run`
-```sh
-pip-run (10.0.5)
-├── autocommand (2.2.2)
-├── jaraco-context (4.3.0)
-├── jaraco-functools (3.6.0)
-│   └── more-itertools (9.1.0)
-├── jaraco-text (3.11.1)
-│   ├── autocommand (2.2.2)
-│   ├── inflect (6.0.2)
-│   │   └── pydantic>=1.9.1 (1.10.5)
-│   │       └── typing-extensions>=4.2.0 (4.5.0)
-│   ├── jaraco-context>=4.1 (4.3.0)
-│   ├── jaraco-functools (3.6.0)
-│   │   └── more-itertools (9.1.0)
-│   └── more-itertools (9.1.0)
-├── more-itertools>=8.3 (9.1.0)
-├── packaging (23.0)
-├── path>=15.1 (16.6.0)
-├── pip>=19.3 (23.0.1)
-└── platformdirs (3.1.0)
-```
-
-### [pipx](https://github.com/pypa/pipx/)
-
-```sh
-pipx (1.1.0)
-├── argcomplete>=1.9.4 (2.1.1)
-├── packaging>=20.0 (23.0)
-└── userpath>=1.6.0 (1.8.0)
-    └── click (8.1.3)
-```

docs/demo.py

@@ -1,11 +0,0 @@
-#!/usr/bin/env python3
-
-__import__("viv").use("pyfiglet==0.8.post1")  # noqa
-
-from pyfiglet import Figlet
-
-if __name__ == "__main__":
-    f = Figlet(font="slant")
-    figtxt = f.renderText("viv").splitlines()
-    figtxt[-2] += " isn't venv!"
-    print("\n".join(figtxt))

docs/demo.tape

@@ -1,12 +1,12 @@
 Set Height 750
 Set Width 1500
 Set Theme "Catppuccin Mocha"
-Output ./demo.gif
+Output ./docs/demo.gif
 
 Type "viv list"
 Enter
 Sleep 2s
-Type "python ../examples/cli.py --help"
+Type "python examples/cli.py --help"
 Enter
 Sleep 10s
 Type "viv list"
@@ -15,9 +15,9 @@ Sleep 3s
 Type "viv info 841"
 Enter
 Sleep 3s
-Type "python ../examples/cli.py hello 'prospective viv user!'"
+Type "python examples/cli.py hello 'prospective viv user!'"
 Enter
 Sleep 2s
-Type "python ../examples/cli.py goodbye 'prospective viv user!'"
+Type "python examples/cli.py goodbye 'prospective viv user!'"
 Enter
 Sleep 2s

docs/freeze.tape

@@ -1,23 +1,20 @@
 Set Height 750
 Set Width 1500
 Set Theme "Catppuccin Mocha"
-Output ./freeze.gif
+Output ./docs/freeze.gif
 
-Type "viv freeze --help"
-Enter
-Sleep 2s
 Type "viv list"
 Enter
 Sleep 2s
 Type "viv freeze requests bs4"
 Enter
-Sleep 7s
+Sleep 5s
 Type "viv list"
 Enter
 Sleep 3s
 Type "viv freeze requests bs4 --keep --path relative"
 Enter
-Sleep 7s
+Sleep 5s
 Type "viv list"
 Enter
 Sleep 5s

docs/list-info-remove.tape

@@ -1,30 +0,0 @@
-Set Height 750
-Set Width 1500
-Set Theme "Catppuccin Mocha"
-Output ./list-info-remove.gif
-
-Type "cat demo.py"
-Enter
-Sleep 500ms
-Type "python demo.py"
-Enter
-Sleep 3s
-Type "viv list -h"
-Enter
-Sleep 500ms
-Type "viv list -q"
-Enter
-Sleep 1s
-Type "viv info -h"
-Enter
-Sleep 500ms
-Type "viv info "
-Sleep 1s
-Type "f8"
-Enter
-Sleep 1s
-Type "viv remove -h"
-Enter
-Type "viv rm f8"
-Enter
-Sleep 2s

docs/usage.md

@@ -2,7 +2,6 @@
 
 *NOTE*: these demo gif's are a work in progress. If you'd like to see them you can run `vhs` locally with `make docs`.
 
-<div align="center">
 # Demo
 
 <img src="https://raw.githubusercontent.com/daylinmorgan/viv/main/docs/demo.gif" alt="demo" width=600 >
@@ -10,9 +9,3 @@
 # Freeze
 
 <img src="https://raw.githubusercontent.com/daylinmorgan/viv/main/docs/freeze.gif" alt="demo" width=600 >
-
-# List | Info | Remove
-
-<img src="https://raw.githubusercontent.com/daylinmorgan/viv/main/docs/list-info-remove.gif" alt="demo" width=600 >
-
-</div>

examples/cli.py

@@ -4,7 +4,7 @@ It can be convenient to quickly generate a cli for a short script.
 Or to add simple visualization of data using the wonderful rich library.
 """
 
-__import__("viv").use("typer", "rich-click")  # noqa
+__import__("viv").activate("typer", "rich-click")  # noqa
 
 import typer
 

examples/exe_specific.py

@@ -7,7 +7,7 @@ it will generate a new vivenv.
 It may be important to require a exe specificty if you are frequently running
 different version of pythons and rely on c extension modules as in numpy.
 """
-__import__("viv").use("numpy", "plotext", track_exe=True)  # noqa
+__import__("viv").activate("numpy", "plotext", track_exe=True)  # noqa
 
 import numpy as np
 import plotext as plt

examples/frozen_import.py

@@ -6,7 +6,7 @@ This import statement was generated using
 Using viv freeze ensures future runs of this
 script will use the same essential environment
 """
-__import__("viv").use(
+__import__("viv").activate(
     "numpy==1.24.0",
     "pandas==1.5.2",
     "python-dateutil==2.8.2",

examples/named_env.py

@@ -7,7 +7,7 @@ Meaning that it will save it within the viv cache not using a hash.
 *This environment could then be reused by specifying the name*
 """
 
-__import__("viv").use("rich", name="rich-env")
+__import__("viv").activate("rich", name="rich-env")
 
 from rich.console import Console
 from rich.markdown import Markdown

examples/scrape.py

@@ -6,7 +6,7 @@ modified from:
 https://medium.com/analytics-vidhya/a-super-easy-python-script-for-web-scraping-that-anybody-can-use-d3bd6ab86c89
 """
 
-__import__("viv").use("requests", "bs4", "rich")  # noqa
+__import__("viv").activate("requests", "bs4", "rich")  # noqa
 
 import requests
 from bs4 import BeautifulSoup

examples/standalone.py

@@ -1,38 +0,0 @@
-#!/usr/bin/env python3
-"""
-Example using the output of `viv freeze pyfiglet --standalone`.
-With this function it's not necessary for
-`viv` to exist anywhere on the system.
-"""
-
-# <<<<< auto-generated by daylinmorgan/viv (v.22.12a3)
-# fmt: off
-def _viv_use(*pkgs: str, track_exe: bool = False, name: str = "") -> None:                               # noqa
-    i,s,m,e,spec=__import__,str,map,lambda x: True if x else False,[*pkgs]                                    # noqa
-    if not {*m(type,pkgs)}=={s}: raise ValueError(f"spec: {pkgs} is invalid")                                 # noqa
-    ge,sys,P,ew=i("os").getenv,i("sys"),i("pathlib").Path,i("sys").stderr.write                               # noqa
-    (cache:=(P(ge("XDG_CACHE_HOME",P.home()/".cache"))/"viv"/"venvs")).mkdir(parents=True,exist_ok=True)      # noqa
-    ((sha256:=i("hashlib").sha256()).update((s(spec)+                                                         # noqa
-     (((exe:=("N/A",s(P(i("sys").executable).resolve()))[e(track_exe)])))).encode()))                         # noqa
-    if (env:=cache/(name if name else (_id:=sha256.hexdigest()))) not in cache.glob("*/") or ge("VIV_FORCE"): # noqa
-        v=e(ge("VIV_VERBOSE"));ew(f"generating new vivenv -> {env.name}\n")                                   # noqa
-        i("venv").EnvBuilder(with_pip=True,clear=True).create(env)                                            # noqa
-        with (env/"pip.conf").open("w") as f:f.write("[global]\ndisable-pip-version-check=true")              # noqa
-        if (p:=i("subprocess").run([env/"bin"/"pip","install","--force-reinstall",*spec],text=True,           # noqa
-            stdout=(-1,None)[v],stderr=(-2,None)[v])).returncode!=0:                                          # noqa
-            if env.is_dir():i("shutil").rmtree(env)                                                           # noqa
-            ew(f"pip had non zero exit ({p.returncode})\n{p.stdout}\n");sys.exit(p.returncode)                # noqa
-        with (env/"viv-info.json").open("w") as f:                                                            # noqa
-            i("json").dump({"created":s(i("datetime").datetime.today()),"id":_id,"spec":spec,"exe":exe},f)    # noqa
-    sys.path = [p for p in (*sys.path,s(*(env/"lib").glob("py*/si*"))) if p!=i("site").USER_SITE]             # noqa
-_viv_use("pyfiglet==0.8.post1")                                                                          # noqa
-# fmt: on
-# >>>>> code golfed with <3
-
-from pyfiglet import Figlet
-
-if __name__ == "__main__":
-    f = Figlet(font="slant")
-    figtxt = f.renderText("viv").splitlines()
-    figtxt[-2] += " isn't venv!"
-    print("\n".join(figtxt))

examples/stopwatch.py

@@ -1,141 +0,0 @@
-#!/usr/bin/env python3
-"""A tui stopwatch built w/textual adapted from their tutorial:
-https://github.com/Textualize/textual/tree/main/docs/examples/tutorial
-"""
-
-__import__("viv").use("textual")
-
-from time import monotonic
-
-from textual.app import App, ComposeResult
-from textual.containers import Container
-from textual.reactive import reactive
-from textual.widgets import Button, Footer, Header, Static
-
-
-class TimeDisplay(Static):
-    """A widget to display elapsed time."""
-
-    start_time = reactive(monotonic)
-    time = reactive(0.0)
-    total = reactive(0.0)
-
-    def on_mount(self) -> None:
-        """Event handler called when widget is added to the app."""
-        self.update_timer = self.set_interval(1 / 60, self.update_time, pause=True)
-
-    def update_time(self) -> None:
-        """Method to update time to current."""
-        self.time = self.total + (monotonic() - self.start_time)
-
-    def watch_time(self, time: float) -> None:
-        """Called when the time attribute changes."""
-        minutes, seconds = divmod(time, 60)
-        hours, minutes = divmod(minutes, 60)
-        self.update(f"{hours:02,.0f}:{minutes:02.0f}:{seconds:05.2f}")
-
-    def start(self) -> None:
-        """Method to start (or resume) time updating."""
-        self.start_time = monotonic()
-        self.update_timer.resume()
-
-    def stop(self):
-        """Method to stop the time display updating."""
-        self.update_timer.pause()
-        self.total += monotonic() - self.start_time
-        self.time = self.total
-
-    def reset(self):
-        """Method to reset the time display to zero."""
-        self.total = 0
-        self.time = 0
-
-
-class Stopwatch(Static):
-    """A stopwatch widget."""
-
-    def on_button_pressed(self, event: Button.Pressed) -> None:
-        """Event handler called when a button is pressed."""
-        button_id = event.button.id
-        time_display = self.query_one(TimeDisplay)
-        if button_id == "start":
-            time_display.start()
-            self.add_class("started")
-        elif button_id == "stop":
-            time_display.stop()
-            self.remove_class("started")
-        elif button_id == "reset":
-            time_display.reset()
-
-    def compose(self) -> ComposeResult:
-        """Create child widgets of a stopwatch."""
-        yield Button("Start", id="start", variant="success")
-        yield Button("Stop", id="stop", variant="error")
-        yield Button("Reset", id="reset")
-        yield TimeDisplay()
-
-
-class StopwatchApp(App):
-    """A Textual app to manage stopwatches."""
-
-    # CSS_PATH = "stopwatch.css"
-    DEFAULT_CSS = """
-Stopwatch {
-    layout: horizontal;
-    background: $boost;
-    height: 5;
-    min-width: 50;
-    margin: 1;
-    padding: 1;
-}
-TimeDisplay {
-    content-align: center middle;
-    text-opacity: 60%;
-    height: 3;
-}
-Button { width: 16; }
-#start { dock: left; }
-#stop { dock: left; display: none; }
-#reset { dock: right; }
-.started {
-    text-style: bold;
-    background: $success;
-    color: $text;
-}
-.started TimeDisplay { text-opacity: 100%; }
-.started #start { display: none }
-.started #stop { display: block }
-.started #reset { visibility: hidden }"""
-
-    BINDINGS = [
-        ("d", "toggle_dark", "Toggle dark mode"),
-        ("a", "add_stopwatch", "Add"),
-        ("r", "remove_stopwatch", "Remove"),
-    ]
-
-    def compose(self) -> ComposeResult:
-        """Called to add widgets to the app."""
-        yield Header()
-        yield Footer()
-        yield Container(Stopwatch(), Stopwatch(), Stopwatch(), id="timers")
-
-    def action_add_stopwatch(self) -> None:
-        """An action to add a timer."""
-        new_stopwatch = Stopwatch()
-        self.query_one("#timers").mount(new_stopwatch)
-        new_stopwatch.scroll_visible()
-
-    def action_remove_stopwatch(self) -> None:
-        """Called to remove a timer."""
-        timers = self.query("Stopwatch")
-        if timers:
-            timers.last().remove()
-
-    def action_toggle_dark(self) -> None:
-        """An action to toggle dark mode."""
-        self.dark = not self.dark
-
-
-if __name__ == "__main__":
-    app = StopwatchApp()
-    app.run()

examples/sys_path.py

@@ -7,7 +7,7 @@ Embed the viv.py on the sys.path at runtime rather than using PYTHONPATH
 __import__("sys").path.append(
     __import__("os").path.expanduser("~/.viv/src")
 )  # noqa # isort: off
-__import__("viv").use("pyfiglet")  # noqa # isort: off
+__import__("viv").activate("pyfiglet")  # noqa # isort: off
 
 import sys
 

examples/wrong_input.py

@@ -1,4 +1,4 @@
 #!/usr/bin/env python3
 
 # ints are not allowed
-__import__("viv").use(5)
+__import__("viv").activate(5)

pyproject.toml

@@ -27,11 +27,3 @@ dev = [
   "pre-commit>=3",
   "mypy>=0.991"
 ]
-
-[tool.ruff]
-ignore = ["E402"]
-
-[tool.mypy]
-warn_return_any = true
-check_untyped_defs = true
-warn_unused_configs = true

scripts/bump-dev.sh

@@ -1,5 +0,0 @@
-#!/usr/bin/env sh
-TAG=$(git describe --tags --always --dirty=-dev)
-VERSION="${TAG#v}"
-sed -i "s/__version__ = \".*\"/__version__ = \"$VERSION\"/g" src/viv/viv.py
-git add src/viv/viv.py

setup.cfg

@@ -0,0 +1,8 @@
+[flake8]
+max-line-length = 88
+ignore = E402, W503
+
+[mypy]
+warn_return_any = True
+check_untyped_defs = True
+warn_unused_configs = True

src/viv/__init__.py

@@ -1 +1 @@
-from .viv import use  # noqa
+from .viv import activate  # noqa

src/viv/viv.py

@@ -3,7 +3,7 @@
 
   viv -h
     OR
-  __import__("viv").use("requests", "bs4")
+  __import__("viv").activate("requests", "bs4")
 """
 
 import hashlib
@@ -30,7 +30,7 @@ from pathlib import Path
 from textwrap import dedent, wrap
 from typing import Dict, List, Tuple
 
-__version__ = "22.12a3-35-g0d0c66d-dev"
+__version__ = "22.12a3"
 
 
 @dataclass
@@ -38,7 +38,9 @@ class Config:
     """viv config manager"""
 
     venvcache: Path = (
-        Path(os.getenv("XDG_CACHE_HOME", Path.home() / ".cache")) / "viv" / "venvs"
+        Path(os.getenv("XDG_CACHE_HOME", Path.home() / ".local" / "cache"))
+        / "viv"
+        / "venvs"
     )
 
     def __post_init__(self):
@@ -65,22 +67,22 @@ class Spinner:
     def write_next(self):
         with self._screen_lock:
             if not self.spinner_visible:
-                sys.stderr.write(next(self.spinner))
+                sys.stdout.write(next(self.spinner))
                 self.spinner_visible = True
-                sys.stderr.flush()
+                sys.stdout.flush()
 
     def remove_spinner(self, cleanup=False):
         with self._screen_lock:
             if self.spinner_visible:
-                sys.stderr.write("\b\b\b")
+                sys.stdout.write("\b\b\b")
                 # sys.stdout.write("\b")
                 self.spinner_visible = False
                 if cleanup:
-                    sys.stderr.write("   ")  # overwrite spinner with blank
+                    sys.stdout.write("   ")  # overwrite spinner with blank
                     # sys.stdout.write("\r")  # move to next line
                     # move back then delete the line
-                    sys.stderr.write("\r\033[K")
+                    sys.stdout.write("\r\033[K")
-                sys.stderr.flush()
+                sys.stdout.flush()
 
     def spinner_task(self):
         while self.busy:
@@ -89,18 +91,18 @@ class Spinner:
             self.remove_spinner()
 
     def __enter__(self):
-        if sys.stderr.isatty():
+        if sys.stdout.isatty():
             self._screen_lock = threading.Lock()
             self.busy = True
             self.thread = threading.Thread(target=self.spinner_task)
             self.thread.start()
 
     def __exit__(self, exc_type, exc_val, exc_traceback):  # noqa
-        if sys.stderr.isatty():
+        if sys.stdout.isatty():
             self.busy = False
             self.remove_spinner(cleanup=True)
         else:
-            sys.stderr.write("\r")
+            sys.stdout.write("\r")
 
 
 BOX: Dict[str, str] = {
@@ -134,7 +136,7 @@ class Ansi:
     metavar: str = "\033[33m"  # normal yellow
 
     def __post_init__(self):
-        if os.getenv("NO_COLOR") or not sys.stderr.isatty():
+        if os.getenv("NO_COLOR") or not sys.stdout.isatty():
             for attr in self.__dict__:
                 setattr(self, attr, "")
 
@@ -194,6 +196,7 @@ class Ansi:
         return sizes
 
     def _make_row(self, row) -> str:
+
         return f"  {BOX['v']} " + f" {BOX['sep']} ".join(row) + f" {BOX['v']}"
 
     def _sanitize_row(self, sizes: List[int], row: Tuple[str]) -> Tuple[Tuple[str]]:
@@ -246,9 +249,9 @@ class Ansi:
             )
         )
 
-        sys.stderr.write(f"  {BOX['tl']}{BOX['h']*(sum(sizes)+5)}{BOX['tr']}\n")
+        sys.stdout.write(f"  {BOX['tl']}{BOX['h']*(sum(sizes)+5)}{BOX['tr']}\n")
-        sys.stderr.write("\n".join(table_rows) + "\n")
+        sys.stdout.write("\n".join(table_rows) + "\n")
-        sys.stderr.write(f"  {BOX['bl']}{BOX['h']*(sum(sizes)+5)}{BOX['br']}\n")
+        sys.stdout.write(f"  {BOX['bl']}{BOX['h']*(sum(sizes)+5)}{BOX['br']}\n")
 
 
 a = Ansi()
@@ -266,12 +269,12 @@ def warn(msg):
     echo(f"{a.yellow}warn:{a.end} {msg}", style="yellow")
 
 
-def echo(msg: str, style="magenta", newline=True, fd=sys.stderr) -> None:
+def echo(msg: str, style="magenta", newline=True) -> None:
     """output general message to stdout"""
     output = f"{a.cyan}Viv{a.end}{a.__dict__[style]}::{a.end} {msg}"
     if newline:
         output += "\n"
-    fd.write(output)
+    sys.stdout.write(output)
 
 
 def run(
@@ -331,15 +334,14 @@ def get_hash(spec: Tuple[str, ...] | List[str], track_exe: bool = False) -> str:
     Returns:
         sha256 representation of dependencies for vivenv
     """
+    pkg_hash = hashlib.sha256()
+    pkg_hash.update(str(spec).encode())
 
-    sha256 = hashlib.sha256()
+    # generate unique venvs for unique python exe's
-    sha256.update(
+    if track_exe:
-        (
+        pkg_hash.update(str(Path(sys.executable).resolve()).encode())
-            str(spec) + (str(Path(sys.executable).resolve()) if track_exe else "N/A")
-        ).encode()
-    )
 
-    return sha256.hexdigest()
+    return pkg_hash.hexdigest()
 
 
 class ViVenv:
@@ -347,14 +349,14 @@ class ViVenv:
         self,
         spec: List[str],
         track_exe: bool = False,
-        id: str | None = None,
+        build_id: str | None = None,
         name: str = "",
         path: Path | None = None,
     ) -> None:
         self.spec = spec
         self.exe = str(Path(sys.executable).resolve()) if track_exe else "N/A"
-        self.id = id if id else get_hash(spec, track_exe)
+        self.build_id = build_id if build_id else get_hash(spec, track_exe)
-        self.name = name if name else self.id
+        self.name = name if name else self.build_id
         self.path = path if path else c.venvcache / self.name
 
     @classmethod
@@ -370,12 +372,15 @@ class ViVenv:
             with (c.venvcache / name / "viv-info.json").open("r") as f:
                 venvconfig = json.load(f)
 
-        vivenv = cls(name=name, spec=venvconfig["spec"], id=venvconfig["id"])
+        vivenv = cls(
+            name=name, spec=venvconfig["spec"], build_id=venvconfig["build_id"]
+        )
         vivenv.exe = venvconfig["exe"]
 
         return vivenv
 
     def create(self) -> None:
+
         echo(f"new unique vivenv -> {self.name}")
         with Spinner("creating vivenv"):
             builder = venv.EnvBuilder(with_pip=True, clear=True)
@@ -386,6 +391,7 @@ class ViVenv:
                 f.write("[global]\ndisable-pip-version-check = true")
 
     def install_pkgs(self):
+
         cmd: List[str | Path] = [
             self.path / "bin" / "pip",
             "install",
@@ -400,11 +406,12 @@ class ViVenv:
         )
 
     def dump_info(self, write=False):
+
         # TODO: include associated files in 'info'
         # means it needs to be loaded first
         info = {
             "created": str(datetime.today()),
-            "id": self.id,
+            "build_id": self.build_id,
             "spec": self.spec,
             "exe": self.exe,
         }
@@ -417,13 +424,13 @@ class ViVenv:
             a.table((("key", "value"), *((k, v) for k, v in info.items())))
 
 
-def use(*packages: str, track_exe: bool = False, name: str = "") -> None:
+def activate(*packages: str, track_exe: bool = False, name: str = "") -> None:
     """create a vivenv and append to sys.path
 
     Args:
         packages: package specifications with optional version specifiers
         track_exe: if true make env python exe specific
-        name: use as vivenv name, if not provided id is used
+        name: use as vivenv name, if not provided build_id is used
     """
     validate_spec(packages)
     vivenv = ViVenv(list(packages), track_exe=track_exe, name=name)
@@ -451,6 +458,7 @@ def validate_spec(spec):
 
 
 def modify_sys_path(new_path: Path):
+
     # remove user-site
     for i, path in enumerate(sys.path):
         if path == site.USER_SITE:
@@ -470,48 +478,8 @@ def get_venvs():
 
 
 SYS_PATH_TEMPLATE = """__import__("sys").path.append("{path_to_viv}")  # noqa"""
-REL_SYS_PATH_TEMPLATE = (
+REL_SYS_PATH_TEMPLATE = """__import__("sys").path.append(__import__("os").path.expanduser("{path_to_viv}"))  # noqa"""
-    """__import__("sys").path.append(__import__("os")"""
+IMPORT_TEMPLATE = """__import__("viv").activate({spec})  # noqa"""
-    """.path.expanduser("{path_to_viv}"))  # noqa"""
-)
-IMPORT_TEMPLATE = """__import__("viv").use({spec})  # noqa"""
-
-STANDALONE_TEMPLATE = r"""
-# <<<<< auto-generated by daylinmorgan/viv (v.22.12a3)
-# fmt: off
-{use}
-# fmt: on
-# >>>>> code golfed with <3
-"""  # noqa
-
-STANDALONE_TEMPLATE_USE = r"""
-def _viv_use(*pkgs: str, track_exe: bool = False, name: str = "") -> None:
-    i,s,m,e,spec=__import__,str,map,lambda x: True if x else False,[*pkgs]
-    if not {{*m(type,pkgs)}}=={{s}}: raise ValueError(f"spec: {{pkgs}} is invalid")
-    ge,sys,P,ew=i("os").getenv,i("sys"),i("pathlib").Path,i("sys").stderr.write
-    (cache:=(P(ge("XDG_CACHE_HOME",P.home()/".cache"))/"viv"/"venvs")).mkdir(parents=True,exist_ok=True)
-    ((sha256:=i("hashlib").sha256()).update((s(spec)+
-     (((exe:=("N/A",s(P(i("sys").executable).resolve()))[e(track_exe)])))).encode()))
-    if (env:=cache/(name if name else (_id:=sha256.hexdigest()))) not in cache.glob("*/") or ge("VIV_FORCE"):
-        v=e(ge("VIV_VERBOSE"));ew(f"generating new vivenv -> {{env.name}}\n")
-        i("venv").EnvBuilder(with_pip=True,clear=True).create(env)
-        with (env/"pip.conf").open("w") as f:f.write("[global]\ndisable-pip-version-check=true")
-        if (p:=i("subprocess").run([env/"bin"/"pip","install","--force-reinstall",*spec],text=True,
-            stdout=(-1,None)[v],stderr=(-2,None)[v])).returncode!=0:
-            if env.is_dir():i("shutil").rmtree(env)
-            ew(f"pip had non zero exit ({{p.returncode}})\n{{p.stdout}}\n");sys.exit(p.returncode)
-        with (env/"viv-info.json").open("w") as f:
-            i("json").dump({{"created":s(i("datetime").datetime.today()),"id":_id,"spec":spec,"exe":exe}},f)
-    sys.path = [p for p in (*sys.path,s(*(env/"lib").glob("py*/si*"))) if p!=i("site").USER_SITE]
-_viv_use({spec})
-"""[  # noqa
-    1:
-]
-
-
-def noqa(txt: str) -> str:
-    max_length = max(map(len, txt.splitlines()))
-    return "\n".join((f"{line:{max_length}} # noqa" for line in txt.splitlines()))
 
 
 def spec_to_import(spec: List[str]) -> None:
@@ -540,12 +508,7 @@ def freeze_venv(spec: List[str], path: Path | None = None):
 
 
 def generate_import(
-    requirements: Path,
+    requirements: Path, reqs: List[str], vivenvs, include_path: bool, keep: bool
-    reqs: List[str],
-    vivenvs,
-    include_path: bool,
-    keep: bool,
-    standalone: bool,
 ) -> None:
     # TODO: make compatible with Venv class for now just use the name /tmp/
     reqs_from_file = []
@@ -560,13 +523,13 @@ def generate_import(
         echo("generating new vivenv")
         vivenv, resolved_spec = freeze_venv(reqs + reqs_from_file)
 
-        # update id and move vivenv
+        # update build_id and move vivenv
         vivenv.spec = resolved_spec.splitlines()
-        vivenv.id = get_hash(resolved_spec.splitlines())
+        vivenv.build_id = get_hash(resolved_spec.splitlines())
-        echo(f"updated hash -> {vivenv.id}")
+        echo(f"updated hash -> {vivenv.build_id}")
 
-        if not (c.venvcache / vivenv.id).exists():
+        if not (c.venvcache / vivenv.build_id).exists():
-            vivenv.path = vivenv.path.rename(c.venvcache / vivenv.id)
+            vivenv.path = vivenv.path.rename(c.venvcache / vivenv.build_id)
             vivenv.dump_info(write=True)
         else:
             echo("this vivenv already exists cleaning up temporary vivenv")
@@ -579,21 +542,6 @@ def generate_import(
             )
 
     echo("see below for import statements\n")
-
-    if standalone:
-        sys.stdout.write(
-            STANDALONE_TEMPLATE.format(
-                version=__version__,
-                use=noqa(
-                    STANDALONE_TEMPLATE_USE.format(
-                        spec=", ".join(f'"{pkg}"' for pkg in resolved_spec.splitlines())
-                    )
-                ),
-            )
-            + "\n"
-        )
-        return
-
     if include_path == "absolute":
         sys.stdout.write(
             SYS_PATH_TEMPLATE.format(
@@ -654,6 +602,7 @@ class CustomHelpFormatter(RawDescriptionHelpFormatter, HelpFormatter):
             return (", ").join(parts)
 
     def _format_usage(self, *args, **kwargs):
+
         formatted_usage = super()._format_usage(*args, **kwargs)
         # patch usage with color formatting
         formatted_usage = (
@@ -718,6 +667,7 @@ class CustomHelpFormatter(RawDescriptionHelpFormatter, HelpFormatter):
 
     def add_argument(self, action):
         if action.help is not SUPPRESS:
+
             # find all invocations
             get_invocation = self._format_action_invocation
             invocations = [get_invocation(action)]
@@ -756,7 +706,7 @@ description = f"""
 from command line:
   `{a.style("viv -h","bold")}`
 within python script:
-  {a.style('__import__("viv").use("typer", "rich-click")','bold')}
+  {a.style('__import__("viv").activate("typer", "rich-click")','bold')}
 """
 
 
@@ -770,7 +720,7 @@ class Viv:
         for k, v in self.vivenvs.items():
             if name_id == k or v.name == name_id:
                 matches.append(v)
-            elif k.startswith(name_id) or v.id.startswith(name_id):
+            elif k.startswith(name_id) or v.build_id.startswith(name_id):
                 matches.append(v)
             elif v.name.startswith(name_id):
                 matches.append(v)
@@ -805,16 +755,11 @@ class Viv:
         """create import statement from package spec"""
 
         if not args.reqs:
-            error("must specify a requirement")
+            print("must specify a requirement")
             sys.exit(1)
 
         generate_import(
-            args.requirements,
+            args.requirements, args.reqs, self.vivenvs, args.path, args.keep
-            args.reqs,
-            self.vivenvs,
-            args.path,
-            args.keep,
-            args.standalone,
         )
 
     def list(self, args):
@@ -846,7 +791,7 @@ class Viv:
 
         pip_path, python_path = (vivenv.path / "bin" / cmd for cmd in ("pip", "python"))
         # todo check for vivenv
-        echo(f"executing command within {args.vivenv}")
+        print(f"executing command within {args.vivenv}")
 
         cmd = (
             f"{pip_path} {' '.join(args.cmd)}"
@@ -967,12 +912,6 @@ class Viv:
             help="preserve environment",
             action="store_true",
         )
-        p_freeze.add_argument(
-            "-s",
-            "--standalone",
-            help="generate standalone activation function",
-            action="store_true",
-        )
         p_freeze.add_argument("reqs", help="requirements specifiers", nargs="*")
 
         self._get_subcmd_parser(

todo.md

@@ -1,9 +1,7 @@
 # VIV Todo's
 
-- [x] swap flake8 for ruff
+- [ ] swap flake8 for ruff
-- [x] use stdout and stderr more effectively (or switch to logging?)
+- [ ] add classifiers for pypi?
-- [ ] use config file (probably ini or toml for python>=3.11)
+- [ ] use config file (probably ini or json / could also allow toml for python>=3.11)
 - [ ] enable a garbage collection based on time or file existence (configurable)
-- [ ] unit tests (v important)
+- [ ] unit tests
-
-- [ ] add more options to filter `viv list`