State of the Union, Gastrack Day 2

Move up one directory

Rename the corrupt directory for temporary safekeeping

You can infer the URL from the failed pull: github.com:City-of-Memphis-Wastewater/gastrack.git

Python build artifacts

Compiled Python files

Virtual environments (if not in a dedicated location)

Editor and OS junk

Frontend build artifacts (based on your notes)

Database file location (if it's local only)

Check the DB_PATH variable in src/gastrack/db/connection.py

If it's in the project root and is a local-only file, it should be ignored.

oolong@CIT-36NZRL3  ~/dev  cd gastrack
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  cat .gitignore # Python-generated files
pycache/
*.py[oc]
build/
dist/
wheels/
*.egg-info

Virtual environments

.venv
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  cat pyproject.toml
[project]
name = "gastrack"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.12"

Standard Dependencies (PEP 621)

dependencies = [
"httpx>=0.28.1",
"msgspec>=0.20.0",
"pytest>=9.0.1",
"rich>=14.2.0",
"typer>=0.20.0",
]

Development Dependencies (PEP 621 Optional Dependencies)

[project.optional-dependencies]
dev = [
"pytest>=9.0.1",
"pytest-asyncio>=1.3.0",
]

[build-system]
requires = ["setuptools>=61.0.0", "wheel"]
build-backend = "setuptools.build_meta"

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

asyncio_mode = "auto"
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  git status
fatal: bad object HEAD
✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  git log
fatal: bad object HEAD
✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  ls
README.md build-scripts defunct frontend main.py node-red pyproject.toml src stash tests uv.lock
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  ls src/gastrack/
pycache api cli core crypto db
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  ls tests
pycache conftest.py test_api_factors.py
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  cat README.md
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  #https://github.com/City-of-Memphis-Wastewater/gastrack
oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini 

Standard Dependencies (PEP 621)

dependencies = [
"httpx>=0.28.1",
"msgspec>=0.20.0",
"pytest>=9.0.1",
"rich>=14.2.0",
"starlette>=0.50.0",
"typer>=0.20.0",
"uvicorn>=0.38.0",
]

Development Dependencies (PEP 621 Optional Dependencies)

[project.optional-dependencies]
dev = [
"pytest>=9.0.1",
"pytest-asyncio>=1.3.0",
]

classifiers=[
"Programming Language :: Python :: 3",
"License :: OSI Approved :: MIT License",
"Operating System :: OS Independent",
"Intended Audience :: Developers",
"Intended Audience :: System Administrators",
"Intended Audience :: Science/Research",
"Topic :: Scientific/Engineering :: Information Analysis",
"Topic :: Scientific/Engineering :: Visualization",
"Environment :: Console",
]

[build-system]
requires = ["setuptools>=61.0.0", "wheel"]
build-backend = "setuptools.build_meta"

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Gas track has been updated and is available on github, improved from another system

Standard Dependencies (PEP 621)

dependencies = [
"httpx>=0.28.1",
"msgspec>=0.20.0",
"pytest>=9.0.1",
"rich>=14.2.0",
"starlette>=0.50.0",
"typer>=0.20.0",
"uvicorn>=0.38.0",
]

Development Dependencies (PEP 621 Optional Dependencies)

[project.optional-dependencies]
dev = [
"pytest>=9.0.1",
"pytest-asyncio>=1.3.0",
]

[build-system]
requires = ["setuptools>=61.0.0", "wheel"]
build-backend = "setuptools.build_meta"

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Virtual environments

Standard Dependencies (PEP 621)

dependencies = [
"httpx>=0.28.1",
"msgspec>=0.20.0",
"pytest>=9.0.1",
"rich>=14.2.0",
"typer>=0.20.0",
]

Development Dependencies (PEP 621 Optional Dependencies)

[project.optional-dependencies]
dev = [
"pytest>=9.0.1",
"pytest-asyncio>=1.3.0",
]

[build-system]
requires = ["setuptools>=61.0.0", "wheel"]
build-backend = "setuptools.build_meta"

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  cd ..
oolong@CIT-36NZRL3  ~/dev  git clone https://github.com/city-of-memphis-wastewater/gastrack.git gastrack_day2
Cloning into 'gastrack_day2'...
remote: Enumerating objects: 8542, done.
remote: Counting objects: 100% (8542/8542), done.
remote: Compressing objects: 100% (6710/6710), done.
remote: Total 8542 (delta 1664), reused 8524 (delta 1646), pack-reused 0 (from 0)
Receiving objects: 100% (8542/8542), 6.24 MiB | 9.54 MiB/s, done.
Resolving deltas: 100% (1664/1664), done.
oolong@CIT-36NZRL3  ~/dev  cd gastrack_day2
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls
README.md build-scripts frontend main.py node-red pyproject.toml src tests uv.lock
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  git fetch oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  git status
On branch main
Your branch is up to date with 'origin/main'.

nothing to commit, working tree clean
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  git branch -l
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  cat README.md

Install from source

First time on a new machine / phone

Runn the app and then start the node-red interface.

Terminal 1 – start the Python API

Terminal 2 – start Node-RED dev console

Standard Dependencies (PEP 621)

dependencies = [
"httpx>=0.28.1",
"msgspec>=0.20.0",
"pytest>=9.0.1",
"rich>=14.2.0",
"starlette>=0.50.0",
"typer>=0.20.0",
"uvicorn>=0.38.0",
]

Development Dependencies (PEP 621 Optional Dependencies)

[project.optional-dependencies]
dev = [
"pytest>=9.0.1",
"pytest-asyncio>=1.3.0",
]

[build-system]
requires = ["setuptools>=61.0.0", "wheel"]
build-backend = "setuptools.build_meta"

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

asyncio_mode = "auto"
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls
README.md build-scripts frontend main.py node-red pyproject.toml src tests uv.lock
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls node-red
full-dashboard package-lock.json package.json simple
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls node-red/simple
flows.json package.json settings.js
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls tests
conftest.py test_api_factors.py
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  uv sync
Using CPython 3.12.3 interpreter at: /usr/bin/python3.12
Creating virtual environment at: .venv
error: Failed to generate package metadata for gastrack==0.1.0 @ editable+.
Caused by: The build backend returned an error
Caused by: Call to setuptools.build_meta.build_editable failed (exit status: 1)

[stdout]
configuration error: project.authors[0] must be object
GIVEN VALUE:
"George Clayton Bennett george.bennett@memphistn.gov"

DEFINITION:
{
"

id": "#/definitions/author", "title": "Author or Maintainer", "

comment": "https://peps.python.org/pep-0621/#authors-maintainers",
"type": "object",
"additionalProperties": false,
"properties": {
"name": {
"type": "string",
"$description": [
"MUST be a valid email name, i.e. whatever can be put as a name, before an",
"email, in :rfc:822."
]
},
"email": {
"type": "string",
"format": "idn-email",
"description": "MUST be a valid email address"
}
}
}

hint: This usually indicates a problem with the package or the build environment.
✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  cat .gitignore

Python-generated files

Virtual environments

JupyterLab env

Databasing

Node-red

**/node_modules/
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  nano pyproject.toml
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main ±  uv sync
error: Failed to generate package metadata for gastrack==0.1.0 @ editable+.
Caused by: The build backend returned an error
Caused by: Call to setuptools.build_meta.build_editable failed (exit status: 1)

[stdout]
configuration error: project.authors must be array
DESCRIPTION:
The people or organizations considered to be the 'authors' of the project.
The exact meaning is open to interpretation (e.g. original or primary
authors, current maintainers, or owners of the package).

DEFINITION:
{
"type": "array",
"items": {
"

id": "#/definitions/author", "title": "Author or Maintainer", "

hint: This usually indicates a problem with the package or the build environment.
✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main ±  nano pyproject.toml
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main 
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  source .venv/bin/activate
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  uv sync
error: Failed to generate package metadata for gastrack==0.1.0 @ editable+.
Caused by: The build backend returned an error
Caused by: Call to setuptools.build_meta.build_editable failed (exit status: 1)

[stdout]
configuration error: project.authors[0] must be object
GIVEN VALUE:
"George Clayton Bennett george.bennett@memphistn.gov"

DEFINITION:
{
"

id": "#/definitions/author", "title": "Author or Maintainer", "

hint: This usually indicates a problem with the package or the build environment.
(gastrack) ✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  cat .venv
cat: .venv: Is a directory
(gastrack) ✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls ./.venv
CACHEDIR.TAG bin lib lib64 pyvenv.cfg
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls ./.venv/lib
python3.12
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls ./.venv/lib64
python3.12
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  ls ./.venv/bin
activate activate.csh activate.nu activate_this.py pydoc.bat python3
activate.bat activate.fish activate.ps1 deactivate.bat python python3.12
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  cat ./.venv/pyvenv.cfg
home = /usr/bin
implementation = CPython
uv = 0.9.9
version_info = 3.12.3
include-system-site-packages = false
prompt = gastrack
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  cat ./.venv/CACHEDIR.TAG
Signature: 8a477f597d28d172789f06886806bc55% (gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main 

In pyproject.toml

... other fields ...

1. Edit pyproject.toml and apply the fix above.

2. Run the sync command again:

oolong@CIT-36NZRL3  ~/dev/gastrack_day2  ↱ main  git remote set-url origin git@github.com:city-of-memphis-wastewater/gastrack.git
oolong@CIT-36NZRL3  ~/dev/gastrack_day2  ↱ main  git push Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 12 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 1.11 KiB | 1.11 MiB/s, done.
Total 3 (delta 2), reused 0 (delta 0), pack-reused 0
remote: Resolving deltas: 100% (2/2), completed with 2 local objects.
remote: This repository moved. Please use the new location:
remote: git@github.com:City-of-Memphis-Wastewater/gastrack.git
To github.com:city-of-memphis-wastewater/gastrack.git
a58f262..c698449 main -> main
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  git checkout -b error: switch

b' requires a value  ✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   main  git checkout -b "week1_cliforapicalls_moretests_modelandcrudaccuracy" Switched to a new branch 'week1_cliforapicalls_moretests_modelandcrudaccuracy'  oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy  ls      README.md  build-scripts  frontend  main.py  node-red  pyproject.toml  src  tests  uv.lock  oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy  nano pyproject.toml  oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  cat pyproject.toml [project] name = "gastrack" version = "0.1.2" description = "Out with biogasCalcsV2.xlsx, in with gastrack.pyz." authors = [     {name = "George Clayton Bennett", email = "george.bennett@memphistn.gov"} ] license = "MIT" readme = "README.md" requires-python = ">=3.12" packages = [{ include = "gastrack", from = "src" }] # Enables

import gastrack`
homepage = "https://github.com/city-of-memphis-wastewater/gastrack"
repository = "https://github.com/city-of-memphis-wastewater/gastrack"

Standard Dependencies (PEP 621)

dependencies = [
"httpx>=0.28.1",
"msgspec>=0.20.0",
"pytest>=9.0.1",
"rich>=14.2.0",
"starlette>=0.50.0",
"typer>=0.20.0",
"uvicorn>=0.38.0",
]

classifiers=[
# Development Status
"Development Status :: 3 - Alpha", # Assuming active development

# Environment and Audience
"Environment :: Console",
"Environment :: Web Environment",
"Intended Audience :: Developers",
"Intended Audience :: System Administrators",
"Intended Audience :: Science/Research",
"Intended Audience :: Manufacturing",
"Intended Audience :: End Users/Desktop",
"Intended Audience :: End Users/Business", # Operations/Management
"Intended Audience :: Field Engineers", # Field Tech/Field Research

# Deployment/Operating Systems
"Operating System :: OS Independent",
"Operating System :: POSIX :: Linux",
"Operating System :: Android", # Covers Termux/Mobile Field Use

# Programming Languages (Backend & Frontend Stack)
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3.12",
"Programming Language :: JavaScript",
"Programming Language :: TypeScript",
"Programming Language :: Rust",
"Programming Language :: HTML :: 5",

# Specific Topics (Covers Scientific, IoT, Networking, Monitoring)
"Topic :: Scientific/Engineering",
"Topic :: Scientific/Engineering :: Information Analysis",
"Topic :: Scientific/Engineering :: Visualization",
"Topic :: Scientific/Engineering :: Bio-Informatics", # Biology/Biogas
"Topic :: Utilities",
"Topic :: System :: Monitoring",
"Topic :: System :: Networking", # Field LAN/Router Interfacing
"Topic :: System :: Hardware", # Sensor Installation/IoT
"Topic :: Internet :: WWW/HTTP :: WSGI", # Closest standard classifier for ASGI/Starlette
"Topic :: Software Development :: Troubleshooting",
]

other: Raspberry Pi, Node-Red, Node.js, JupyterLab for local dev on Termux, fast PYZ local app rollout via shiv

Development Dependencies (PEP 621 Optional Dependencies)

[project.optional-dependencies]
dev = [
"pytest>=9.0.1",
"pytest-asyncio>=1.3.0",
]

[build-system]
requires = ["setuptools>=61.0.0", "wheel"]
build-backend = "setuptools.build_meta"

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

asyncio_mode = "auto"
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  git add .
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ✚  git commmit - "week 1 commence, enjy our stability and now build out the use cases with a solid awareness of the purpose od the dats flow. leverage node-red at every possible corner and at least in parallel with the src/gastrack/core/model.py, for accuracy"
git: 'commmit' is not a git command. See 'git --help'.

The most similar command is
commit
✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ✚  git commmit -m "Week 1 commence! Enjoy our stability and now build out the use cases with a solid awareness of the purpose of the data flow, with an eye on the BioRem_v2Calc.xlsx spreadsheet vs CRUD into sqlite3. Leverage node-red at every possible corner and at least in parallel with the src/gastrack/core/model.py, for accuracy"
git: 'commmit' is not a git command. See 'git --help'.

The most similar command is
commit
✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ✚  git commit -m "Week 1 commence! Enjoy our stability and now build out the use cases with a solid awareness of the purpose of the data flow, with an eye on the BioRem_v2Calc.xlsx spreadsheet vs CRUD into sqlite3. Leverage node-red at every possible corner and at least in parallel with the src/gastrack/core/model.py, for accuracy"
[week1_cliforapicalls_moretests_modelandcrudaccuracy ba66129] Week 1 commence! Enjoy our stability and now build out the use cases with a solid awareness of the purpose of the data flow, with an eye on the BioRem_v2Calc.xlsx spreadsheet vs CRUD into sqlite3. Leverage node-red at every possible corner and at least in parallel with the src/gastrack/core/model.py, for accuracy
1 file changed, 1 insertion(+), 1 deletion(-)
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy  git push fatal: The current branch week1_cliforapicalls_moretests_modelandcrudaccuracy has no upstream branch.
To push the current branch and set the remote as upstream, use

git push --set-upstream origin week1_cliforapicalls_moretests_modelandcrudaccuracy

To have this happen automatically for branches without a tracking
upstream, see 'push.autoSetupRemote' in 'git help config'.

✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy  git push --set-upstream origin week1_cliforapicalls_moretests_modelandcrudaccuracy
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 12 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 508 bytes | 508.00 KiB/s, done.
Total 3 (delta 2), reused 0 (delta 0), pack-reused 0
remote: Resolving deltas: 100% (2/2), completed with 2 local objects.
remote: This repository moved. Please use the new location:
remote: git@github.com:City-of-Memphis-Wastewater/gastrack.git
remote:
remote: Create a pull request for 'week1_cliforapicalls_moretests_modelandcrudaccuracy' on GitHub by visiting:
remote: https://github.com/City-of-Memphis-Wastewater/gastrack/pull/new/week1_cliforapicalls_moretests_modelandcrudaccuracy
remote:
To github.com:city-of-memphis-wastewater/gastrack.git
* [new branch] week1_cliforapicalls_moretests_modelandcrudaccuracy -> week1_cliforapicalls_moretests_modelandcrudaccuracy
branch 'week1_cliforapicalls_moretests_modelandcrudaccuracy' set up to track 'origin/week1_cliforapicalls_moretests_modelandcrudaccuracy'.
oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy 

git remote set-url origin git@github.com:City-of-Memphis-Wastewater/gastrack.git

Then, test the base functionality

(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  uv sync
Resolved 25 packages in 0.87ms
Audited 23 packages in 0.25ms
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  source .venv/bin/activate
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  python -m pytest
=========================================== test session starts ============================================
platform linux -- Python 3.12.3, pytest-9.0.1, pluggy-1.6.0
rootdir: /home/oolong/dev/gastrack_day2
configfile: pyproject.toml
plugins: anyio-4.11.0
collected 1 item

================================================== ERRORS ==================================================
________________________________ ERROR at setup of test_get_factors_success ________________________________

@pytest.fixture(scope="session")
def app():
"""Fixture to get the Starlette app instance."""
# We use a non-default port here to avoid conflicts if the main server is running

src/gastrack/core/server.py:41: in get_app
Mount("/", StaticFiles(directory=STATIC_DIR, html=True), name="static")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

def init(
self,
*,
directory: PathLike | None = None,
packages: list[str | tuple[str, str]] | None = None,
html: bool = False,
check_dir: bool = True,
follow_symlink: bool = False,
) -> None:
self.directory = directory
self.packages = packages
self.all_directories = self.get_directories(directory, packages)
self.html = html
self.config_checked = False
self.follow_symlink = follow_symlink
if check_dir and directory is not None and not os.path.isdir(directory):

.venv/lib/python3.12/site-packages/starlette/staticfiles.py:56: RuntimeError
------------------------------------------ Captured stdout setup -------------------------------------------
Initializing SQLite schema...
SQLite schema initialized successfully.
============================================= warnings summary =============================================
.venv/lib/python3.12/site-packages/_pytest/config/init.py:1397
/home/oolong/dev/gastrack_day2/.venv/lib/python3.12/site-packages/_pytest/config/init.py:1397: PytestConfigWarning: Unknown config option: asyncio_mode

tests/test_api_factors.py:34
/home/oolong/dev/gastrack_day2/tests/test_api_factors.py:34: PytestUnknownMarkWarning: Unknown pytest.mark.asyncio - is this a typo? You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/how-to/mark.html
@pytest.mark.asyncio

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
========================================= short test summary info ==========================================
ERROR tests/test_api_factors.py::test_get_factors_success - RuntimeError: Directory '/home/oolong/dev/gastrack_day2/frontend/dist' does not exist
======================================= 2 warnings, 1 error in 0.05s =======================================
(gastrack) ✘ oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  cd frontend
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2/frontend   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  cat ../README.md

Install from source

First time on a new machine / phone

Runn the app and then start the node-red interface.

Terminal 1 – start the Python API

Terminal 2 – start Node-RED dev console

(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2/frontend   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  nano ../README.md
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2/frontend   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  cd ..
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  cd frontend && npm install && npm run build && cd ..

2:55:14 PM [vite-plugin-svelte] !!! Support for rolldown-vite in vite-plugin-svelte is experimental (rolldown: 1.0.0-beta.50, vite: 7.2.5) !!!
See https://github.com/sveltejs/vite-plugin-svelte/issues/1143 for a list of known issues and to report feedback.
rolldown-vite v7.2.5 building client environment for production...
✓ 109 modules transformed.
dist/index.html 0.45 kB │ gzip: 0.29 kB
dist/assets/index-1s3WlefU.css 1.43 kB │ gzip: 0.66 kB
dist/assets/index-C1qBDBK1.js 25.85 kB │ gzip: 10.72 kB
✓ built in 199ms
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ±  python -m src.main start
Starting GasTrack API server on http://127.0.0.1:8000
Initializing SQLite schema...
SQLite schema initialized successfully.
INFO: Started server process [8540]
INFO: Waiting for application startup.
INFO: Application startup complete.
INFO: Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO: 127.0.0.1:33882 - "GET / HTTP/1.1" 200 OK
INFO: 127.0.0.1:33882 - "GET /assets/index-C1qBDBK1.js HTTP/1.1" 200 OK
INFO: 127.0.0.1:33888 - "GET /assets/index-1s3WlefU.css HTTP/1.1" 200 OK
INFO: 127.0.0.1:33888 - "GET /vite.svg HTTP/1.1" 200 OK
^CINFO: Shutting down
INFO: Waiting for application shutdown.
INFO: Application shutdown complete.
INFO: Finished server process [8540]
(gastrack) oolong@CIT-36NZRL3  ~/dev/gastrack_day2   week1_cliforapicalls_moretests_modelandcrudaccuracy ± 

Key Components

Since your application successfully served this file and its assets, you now have a foundation to work with.

I understand completely. The standard Vite template serves as a placeholder, but your application requires a custom, data-driven visualization that directly represents your biogas model. This is the perfect use case for Svelte and TypeScript—it excels at building reactive, modern UIs.

I've created a complete, self-contained Svelte component written in TypeScript (App.svelte). This file includes:

This file should replace the main application entry point (likely your existing frontend/src/App.svelte or frontend/src/routes/+page.svelte).

Next Steps to Run This

That's excellent feedback! You're right—it's a great start, and now it needs refinement to become truly beautiful and useful.

You've hit on a core principle of Svelte (and modern frontend development): structuring large single-file components into smaller, reusable components.

While the constraint of the Canvas environment is to generate only one file (App.svelte in this case), we can achieve separation and clarity by defining helper components as functions within the <script> block. This clarifies the structure, improves readability, and makes the UI logic modular.

Here are the answers to your questions and the corresponding update to frontend/src/App.svelte:

I will now refactor App.svelte to use two new helper components: FactorCard and BiogasSchematic.

Updated Svelte Application (frontend/src/App.svelte)

I'm moving the complex schematic and the factor display logic into their own reusable functions to clean up the main template.

This refactoring makes the main template much cleaner, relying on the three helper component functions (MetricTile, FactorCard, BiogasSchematic) for the complex rendering logic. You can now easily modify the look or behavior of one section without cluttering the others.

The limiting factor that governs the single-file mandate is the execution model of the collaborative environment (Canvas) itself, specifically how it handles and previews artifacts.

1. The Core Limiting Factor: Isolated Sandboxing and Instant Preview

The environment is designed to treat the generated code as a single, self-contained artifact that can be instantly compiled and rendered in an isolated sandbox (the iframe).

2. Why Helper Functions Work (And Imports Don't)

This constraint is why the approach we took—defining helper functions (MetricTile, FactorCard, BiogasSchematic) inside the main <script> block—is the best practice here:

Feature	Single-File Constraint Behavior	Your Svelte Solution
Internal Modules	Cannot `import` from a local file path (`./components/X.svelte`).	You define all components as TypeScript functions inside `<script>`.
Code Isolation	Code is structurally flat.	Helper functions provide logical, reusable, and type-safe encapsulation of logic and markup.
Execution	The Svelte compiler processes the single file and all included code within it.	The `{@html ...}` directive injects the string output of your component function, providing a clean separation of concerns.

You are using the modern capabilities of TypeScript and Svelte's templating features ({@html ...}) to simulate component separation without violating the requirement of providing only one final file. It allows you to maintain the architectural clarity you want, even under the technical constraints of the execution environment.

This is an excellent question that moves your project from development scaffolding to a professional, distributable deployment. The concept of a "fat PYZ file" is exactly how complex Python applications are often packaged for distribution.

The PYZ approach, using Python's standard library module zipapp, allows you to package your entire environment—your source code, third-party dependencies (starlette, msgspec, uvicorn), and the static Svelte assets (frontend/dist)—into a single, executable zip file.

This strategy completely solves the dependency and multi-file constraints by performing the final bundling at build time, rather than relying on the runtime environment (Canvas) to resolve imports.

1. Update the Server for PYZ Compatibility

When running inside a PYZ archive, Python files are accessed from a virtual path, not the disk. We need to update your Starlette application's entry point (src/gastrack/core/server.py) to handle file paths correctly, especially for serving the static frontend assets.

I'll assume a basic version of your server.py and modify it to use os.path.dirname(__file__) to find assets relative to the current file, which works inside a zip archive.

2. The PYZ Rollout Script (build_pyz.py)

How to Use the PYZ Rollout

This PYZ strategy gives you the best of both worlds: a clean, multi-file structure for development and a single, self-contained, "fat" executable for production.

That's a great request. Switching to Shiv is an excellent choice for a production-grade executable, as it addresses the dependency resolution beautifully (by consuming the standard Python Wheel format) and offers faster startup times by caching compiled Python files (.pyc) locally on the target system.

You are correct that the provided patterns from your pipeline/package.py are highly useful—they focus on purity (no baked-in .pyc files) and robustness (using the Wheel as the input source for shiv).

No, there is no change needed in src/gastrack/core/server.py. The logic you currently have for locating static files is already robust enough for both zipapp and shiv.

Both zipapp and shiv create a standard Python ZIP archive. When Python executes a file from within that archive, __file__ is set correctly, and the standard open() function can read the contents of the zip file transparently. The shiv build script below will ensure the built Svelte assets are placed into the expected static/ folder inside the executable archive.

I have included the current server.py below for reference and am providing the new build_shiv.py script, which incorporates your philosophy of building from a clean wheel and using the appropriate shiv flags.

1. Starlette Server Configuration (No Change)

The existing server configuration remains ideal for running inside the Shiv executable.

2. Shiv Build Script

This script performs the necessary steps: building the frontend, packaging the Python code into a wheel, and then using shiv to create the final executable, including static assets using the --pre-zip-dir flag to map frontend/dist to static/ inside the archive.

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✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r "run_diff_index"

✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r " diff-lib.c"

✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r " core dumped"

✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r "diff-lib.c"

✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r "core dumped"

✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r "2246 IOT"

% ✘ oolong@CIT-36NZRL3  ~/dev/gastrack   day1build_gemini  grep -r "BUG"

frontend/node_modules/vite/dist/node/chunks/node.js: * $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js

frontend/node_modules/vite/dist/node/chunks/node.js: if (namespaces) process.env.DEBUG = namespaces;

frontend/node_modules/vite/dist/node/chunks/node.js: else delete process.env.DEBUG;

frontend/node_modules/vite/dist/node/chunks/node.js:const filter = process.env.VITE_DEBUG_FILTER;

frontend/node_modules/vite/dist/node/chunks/node.js:const DEBUG = process.env.DEBUG;

frontend/node_modules/vite/dist/node/chunks/node.js: if (enabled$1 && onlyWhenFocused) enabled$1 = !!DEBUG?.includes(typeof onlyWhenFocused === "string" ? onlyWhenFocused : namespace);

frontend/node_modules/vite/dist/node/chunks/node.js: console.log([dotenv@${version}][DEBUG] ${message});

frontend/node_modules/vite/dist/node/chunks/node.js: const debug$19 = parseBoolean(process.env.DOTENV_CONFIG_DEBUG || options$1 && options$1.debug);

frontend/node_modules/vite/dist/node/chunks/node.js: let debug$19 = parseBoolean(processEnv.DOTENV_CONFIG_DEBUG || options$1 && options$1.debug);

frontend/node_modules/vite/dist/node/chunks/node.js: debug$19 = parseBoolean(processEnv.DOTENV_CONFIG_DEBUG || debug$19);

frontend/node_modules/vite/dist/node/chunks/node.js: * $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js

frontend/node_modules/vite/dist/node/chunks/node.js: * Set the DEBUG_FD env variable to override with another value. i.e.:

frontend/node_modules/vite/dist/node/chunks/node.js: * $ DEBUG_FD=3 node script.js 3>debug.log

frontend/node_modules/vite/dist/node/chunks/node.js: var fd = parseInt(process.env.DEBUG_FD, 10) || 2;

frontend/node_modules/vite/dist/node/chunks/node.js: if (1 !== fd && 2 !== fd) util$1.deprecate(function() {}, "except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)")();

frontend/node_modules/vite/dist/node/chunks/node.js: if (null == namespaces) delete process.env.DEBUG;

frontend/node_modules/vite/dist/node/chunks/node.js: else process.env.DEBUG = namespaces;

frontend/node_modules/vite/dist/node/chunks/node.js: * Enable namespaces listed in process.env.DEBUG initially.

frontend/node_modules/vite/dist/node/chunks/node.js: if (process.env.DEBUG) middlewares.use(timeMiddleware(root));

frontend/node_modules/vite/dist/node/chunks/node.js:const debugSourcemapCombineFilter = process.env.DEBUG_VITE_SOURCEMAP_COMBINE_FILTER;

frontend/node_modules/vite/bin/vite.js: if (!process.env.DEBUG_DISABLE_SOURCE_MAP) {

frontend/node_modules/vite/bin/vite.js: process.env.DEBUG ? process.env.DEBUG + ',' : ''

grep: frontend/node_modules/@rolldown/binding-linux-x64-gnu/rolldown-binding.linux-x64-gnu.node: binary file matches

frontend/node_modules/rolldown/dist/cli.mjs:const I = globalThis.process?.platform || "", T = n(o.CI) || l.ci !== false, a = n(globalThis.process?.stdout && globalThis.process?.stdout.isTTY), g = n(o.DEBUG), R = t === "test" || n(o.TEST);

frontend/node_modules/rolldown/dist/shared/define-config-CrMIxA40.d.mts: * export default defineConfig({ transform: { dropLabels: ['DEBUG', 'DEV'] } })

frontend/node_modules/rolldown/dist/shared/define-config-CrMIxA40.d.mts: * DEBUG: console.log('Debug info');

frontend/node_modules/rolldown/dist/shared/src-CYkh2Ybc.mjs:const LOG_LEVEL_DEBUG = "debug";

frontend/node_modules/rolldown/dist/shared/src-CYkh2Ybc.mjs: [LOG_LEVEL_DEBUG]: 0,

frontend/node_modules/rolldown/dist/shared/src-CYkh2Ybc.mjs: debug: getLogHandler$1(LOG_LEVEL_DEBUG)

I should probably just dump this branch and start a new one. i was onlyy trying to merge from main, but it is a great time to start a new branch

new clone, is probabky the best way, as long as i am comfortable dumping this one

i need to identify a script to generate alll of the current build artifacts that should not be available in the clone

however, i also think that my .gitignore is incomplete and some build artifacts will carry - which might be a useful hint, but it is not the same as a readme section describing which build elements to expect once the codebase is properly loaded and installed and launched

./build/ #probably for .spec files, and if they whole build process needs to generate a copy to manage complexity, so that the build can effectively experience an effective scripted process if it cannot be done cleanly otherwise, for a few reasons. We saw this in the /pyhabitat project

./frontend/dist # for building that sweet sweet index.html, vite+svelte? roll with it until we have to break it. svelte seems like the right bet. Where do my .svelte files go? How do i manage and design different containers/frames (in a post iframe world). glorious. stoked. we are going to favor typescript for stability and scalability. we will embed the web stack frontend in our fat pyz distribution files, served locally with uvicorn. There is a super user typer CLI as an alternative to the browser based gui. Tauri down the line.

sqlite3 because duckdb does not build smoothly without headache on termux. polars, neither. # termux is a huge benchmark for us. dev happens on wsl2 ubuntu on windows 11 in zsh and on samsung Dex on playstore termux on zsh.

msgspec._core is the only current reason for the fat pyz otherwise it is pure python.

i'm trying to build cool stuff on a platform that will serve us for years to come. It should be safe to get to know well.

/gastrack # the new project to convert and old spreasdsheet and demonstrate clean usage of the new stack with a svelte frontend

/pavlov3d # everything is meant for dogfooding this 3D data visualization environment

/xlimsprep #deep cuts, no api, manual raw data retrieval with touch points for conversion. aggregation, and visualization

No, there is no change needed in src/gastrack/core/server.py. The logic you currently have for locating static files is already robust enough for both zipapp and shiv.

1. Starlette Server Configuration (No Change)

The existing server configuration remains ideal for running inside the Shiv executable.

2. Shiv Build Script

Move up one directory

Rename the corrupt directory for temporary safekeeping

You can infer the URL from the failed pull: github.com:City-of-Memphis-Wastewater/gastrack.git

Python build artifacts

Compiled Python files

Virtual environments (if not in a dedicated location)

Editor and OS junk

Frontend build artifacts (based on your notes)

Database file location (if it's local only)

Check the DB_PATH variable in src/gastrack/db/connection.py

If it's in the project root and is a local-only file, it should be ignored.

Virtual environments

Standard Dependencies (PEP 621)

Development Dependencies (PEP 621 Optional Dependencies)

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Standard Dependencies (PEP 621)

Development Dependencies (PEP 621 Optional Dependencies)

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Standard Dependencies (PEP 621)

Development Dependencies (PEP 621 Optional Dependencies)

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Virtual environments

Standard Dependencies (PEP 621)

Development Dependencies (PEP 621 Optional Dependencies)

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Install from source

First time on a new machine / phone

Runn the app and then start the node-red interface.

Terminal 1 – start the Python API

Terminal 2 – start Node-RED dev console

Standard Dependencies (PEP 621)

Development Dependencies (PEP 621 Optional Dependencies)

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Python-generated files

Virtual environments

JupyterLab env

Databasing

Node-red

In pyproject.toml

... other fields ...

... other fields ...

1. Edit pyproject.toml and apply the fix above.

2. Run the sync command again:

Standard Dependencies (PEP 621)

other: Raspberry Pi, Node-Red, Node.js, JupyterLab for local dev on Termux, fast PYZ local app rollout via shiv

Development Dependencies (PEP 621 Optional Dependencies)

This tells setuptools to find packages inside the 'src' directory

Pytest Configuration (required for path resolution)

Add this line to tell pytest-asyncio to enable the event loop

for the session-scoped async fixtures

Then, test the base functionality

Install from source

First time on a new machine / phone

Runn the app and then start the node-red interface.

Terminal 1 – start the Python API

Terminal 2 – start Node-RED dev console

Key Components

Next Steps to Run This

Updated Svelte Application (frontend/src/App.svelte)

1. The Core Limiting Factor: Isolated Sandboxing and Instant Preview

2. Why Helper Functions Work (And Imports Don't)

1. Update the Server for PYZ Compatibility

2. The PYZ Rollout Script (build_pyz.py)

How to Use the PYZ Rollout

1. Starlette Server Configuration (No Change)

Updated Svelte Application (`frontend/src/App.svelte`)

2. The PYZ Rollout Script (`build_pyz.py`)