chore: Add support for Python 3.8 and 3.9

.github/workflows/python-CI.yml

@@ -45,7 +45,7 @@ jobs:
     strategy:
       matrix:
         os: [ macos-latest ]
-        python-version: [ "3.10" ]
+        python-version: [ "3.8", "3.9", "3.10" ]
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v3

DEVELOPMENT.md

@@ -56,7 +56,32 @@ To build `phoenix`, run
 ```shell
 hatch build
 ```
-If successful, the build will appear in the `dist` folder at the repo base directory.
+If successful, a source distribution (a tarball) and a Python `wheel` will appear in the `dist` folder at the repo base directory.
+
+### Install the Built Package
+
+We recommend using a separate virtual environment (e.g., `phoenix-test-env`) for installing and testing the builds created above.
+
+To install `phoenix` from the source distribution (i.e., tarball), run
+```shell
+pip install /path/to/source/distribution/tarball.tar.gz
+```
+
+To install `phoenix` from the Python `wheel`, you must first install `wheel` with
+```shell
+pip install wheel
+```
+Then run
+```shell
+pip install /path/to/wheel.whl
+```
+(You should only install one of the source distribution or the `wheel` at a time.)
+
+To make sure everything works, install `jupyter` with
+```shell
+pip install jupyter
+```
+and run the notebooks in the `examples` directory.
 
 ## Useful Resources
 - [Hatch Quickstart](https://hatch.pypa.io/latest/)

pyproject.toml

@@ -2,7 +2,7 @@
 name = "phoenix"
 description = "WRITE A BRIEF SUMMARY OF THE PROJECT."
 readme = "README.md"
-requires-python = ">=3.10, <3.11"
+requires-python = ">=3.8, <3.11"
 # license = "None"
 keywords = [
     "Observability",
@@ -16,8 +16,9 @@ maintainers = []
 classifiers = [
   "Development Status :: 1 - Planning",
   "Programming Language :: Python",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
-  "Programming Language :: Python :: 3.11",
 ]
 dependencies = [
     "numpy",
@@ -27,7 +28,6 @@ dependencies = [
     "starlette",
     "uvicorn",
     "psutil",
-    "tables",
     "strawberry-graphql",
 ]
 dynamic = ["version"]

src/phoenix/utils/utils.py

@@ -1,11 +1,4 @@
 from os import path
-from typing import Any, List, Sequence, TypeGuard, TypeVar
-
-T = TypeVar("T", bound=type[Any])
-
-
-def is_list_of(lst: Sequence[object], tp: T) -> TypeGuard[List[T]]:
-    return isinstance(lst, list) and all(isinstance(x, tp) for x in lst)
 
 
 def is_url(filepath: str) -> bool: