use poetry instead of setup tools as package manager

CONTRIBUTING.md

@@ -24,8 +24,8 @@ Pull requests should be done on the `dev` branch. When the release is finalised,
 ## Setting up a development environment
 
 Whether you're interested in contributing to the repository, creating a fork, or just improving your understanding of Streamsync, these are the suggested steps for setting up a development environment.
-- Install streamsync[test] or streamsync[build].
-- You can install the package in editable mode using `pip install -e .`, which will make it more convenient if you intend to tweak the backend.
+- You can install the package in editable mode using `poetry install --with build`, which will make it more convenient if you intend to tweak the backend.
+- Enable the virtual environment with `poetry shell`
 - Run streamsync in port 5000. For example, `streamsync edit hello --port 5000`.
 - Install dependencies and run `npm run dev` in `/ui`. This runs the frontend for Streamsync in development mode while proxying requests to port 5000.
 - A breakdown of the steps required for packaging can be found in `./build.sh`. Notably, it includes compiling the frontend and taking it from `/ui` and into the Python package.

build.sh

@@ -12,12 +12,12 @@ cd ..
 # PYTEST
 
 cd ./tests
-pytest
+poetry run pytest
 cd ..
 
 # TYPE CHECKS (MYPY)
 
-mypy ./src/streamsync/*.py
+poetry run  mypy ./src/streamsync/*.py
 
 # APP PROVISIONING
 
@@ -28,4 +28,4 @@ cp -r ./apps/hello ./src/streamsync/app_templates
 # PYTHON PACKAGE BUILD
 
 rm -rf ./dist/*
-python -m build
+poetry build

poetry.toml

@@ -0,0 +1,2 @@
+[virtualenvs]
+in-project = true

pyproject.toml

@@ -1,59 +1,53 @@
 [build-system]
-requires = ["setuptools", "setuptools-scm"]
-build-backend = "setuptools.build_meta"
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
 
-[project]
+[tool.poetry]
 name = "streamsync"
-authors = [{ name = "Ramiro Medina", email = "ramiro.a.medina@gmail.com" }]
+version = "0.3.0"
 description = "Streamsync helps you create performant data apps, via Python code and its built-in visual UI editor."
+authors = ["Ramiro Medina <ramiro.a.medina@gmail.com>"]
+license = "Apache 2.0"
 readme = "README.md"
-requires-python = ">=3.9.2"
+homepage = "https://www.streamsync.cloud"
+repository = "https://www.github.com/streamsync-cloud/streamsync"
+documentation = "https://www.streamsync.cloud/getting-started.html"
 keywords = ["data apps", "gui", "ui"]
-license = { text = "Apache 2.0" }
-classifiers = ["Development Status :: 4 - Beta"]
-dependencies = [
-    "pydantic >= 2.6.0, < 3",
-    "fastapi >= 0.89.1, < 1",
-    "websockets >= 12, < 13",
-    "uvicorn >= 0.20.0, < 1",
-    "watchdog >= 3.0.0, < 4"
+classifiers = [
+    "Development Status :: 4 - Beta"
+]
+packages = [
+    { include = "streamsync", from = "src" }
 ]
 
-dynamic = ["version"]
+[tool.poetry.dependencies]
+python = ">=3.9.2, <4.0"
+pydantic = ">= 2.6.0, < 3"
+fastapi = ">= 0.89.1, < 1"
+websockets = ">= 12, < 13"
+uvicorn = ">= 0.20.0, < 1"
+watchdog = ">= 3.0.0, < 4"
+pandas = {version = ">= 2.2.0, < 3", optional = true}
+pyarrow = {version = ">= 15.0.0, < 16.0.0",optional = true}
+plotly = {version = ">= 5.18.0, < 6", optional = true}
 
-[project.optional-dependencies]
-ds = [
-    "pandas >= 2.2.0, < 3",
-    "pyarrow >= 15.0.0, < 16.0.0",
-    "plotly >= 5.18.0, < 6"
-]
-test = [
-    "pandas >= 2.2.0, < 3",
-    "pyarrow >= 15.0.0, < 16.0.0",
-    "plotly >= 5.18.0, < 6",
-    "pytest-asyncio >= 0.23.4, < 1",
-    "pytest >= 7.0.0, < 8",
-    "altair >= 5.2.0, < 6", 
-    "httpx >= 0.26.0, < 1"
-]
-build = [
-    "pandas >= 2.2.0, < 3",
-    "pyarrow >= 15.0.0, < 16.0.0",
-    "plotly >= 5.18.0, < 6",
-    "build >= 1.0.3, < 2",
-    "mypy >= 1.8.0, < 2",
-    "pandas-stubs >= 2.0.0, <3",
-    "pytest >= 8.0.0, < 9",
-    "pytest-asyncio >= 0.23.4, < 1",
-    "altair >= 5.2.0, < 6", 
-    "httpx >= 0.26.0, < 1"
-]
 
-[project.urls]
-Home = "https://www.github.com/streamsync-cloud/streamsync"
+[tool.poetry.group.build]
+optional = true
+
+[tool.poetry.group.build.dependencies]
+pandas = ">= 2.2.0, < 3"
+pyarrow = ">= 15.0.0, < 16.0.0"
+plotly = ">= 5.18.0, < 6"
+mypy = ">= 1.8.0, < 2"
+pandas-stubs = ">= 2.0.0, <3"
+pytest-asyncio = ">= 0.23.4, < 1"
+pytest = ">= 7.0.0, < 8"
+altair = ">= 5.2.0, < 6"
+httpx = ">=0.26.0, < 1"
 
-[project.scripts]
-streamsync = "streamsync.command_line:main"
+[tool.poetry.extras]
+ds = ["pandas", "pyarrow", "plotly"]
 
-[tool.setuptools.dynamic]
-version = { attr = "streamsync.VERSION" }
+[tool.poetry.scripts]
+streamsync = 'streamsync.command_line:main'

src/streamsync/__init__.py

@@ -1,8 +1,9 @@
+import importlib.metadata
 from typing import Union, Optional, Dict, Any
 from streamsync.core import Readable, FileWrapper, BytesWrapper, Config
 from streamsync.core import initial_state, component_manager, session_manager, session_verifier
 
-VERSION = "0.3.0"
+VERSION = importlib.metadata.version("streamsync")
 
 component_manager
 session_manager

src/streamsync/app_runner.py

@@ -539,7 +539,7 @@ def __init__(self, app_path: str, mode: str):
         self.is_app_process_server_ready = multiprocessing.Event()
         self.is_app_process_server_failed = multiprocessing.Event()
         self.app_process_listener: Optional[AppProcessListener] = None
-        self.observer: Optional[watchdog.observers.Observer] = None
+        self.observer: Optional[PollingObserver] = None
         self.app_path: str = app_path
         self.response_events: Dict[int, ThreadSafeAsyncEvent] = {}
         self.response_packets: Dict[int, AppProcessServerResponsePacket] = {}