build: migrate to uv, pin Python 3.10, and remove pip-tools

- Replace imperative setup.py with declarative pyproject.toml (PEP 621)
- Adopt PEP 517/518 compliant build system using hatchling
- Pin `requires-python = ">=3.10"` to align with Build CI defaults
- Remove pip-tools as uv natively handles locking and syncing
- Initialize uv.lock for deterministic and faster dependency resolution
- Reorganize dev dependencies into [dependency-groups]

Author: abstract-333

.gitignore

@@ -76,9 +76,6 @@ target/
 # Jupyter Notebook
 .ipynb_checkpoints
 
-# pyenv
-.python-version
-
 # celery beat schedule file
 celerybeat-schedule
 

.python-version

@@ -0,0 +1 @@
+3.10

pyproject.toml

@@ -0,0 +1,36 @@
+[project]
+name = "ipinfo"
+dynamic = ["version"] # Use this if you want to keep SDK_VERSION in a python file
+description = "Official Python library for IPInfo"
+readme = "README.md"
+authors = [
+    { name = "IPinfo", email = "support@ipinfo.io" }
+]
+license = { text = "Apache License 2.0" }
+requires-python = ">=3.9"
+dependencies = [
+    "requests>=2.18.4",
+    "cachetools==4.2.0",
+    "aiohttp>=3.12.14,<=4",
+]
+
+[project.urls]
+Homepage = "https://github.com/ipinfo/python"
+Documentation = "https://ipinfo.io/developers"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.version]
+path = "ipinfo/version.py"
+
+[tool.hatch.build.targets.wheel]
+packages = ["ipinfo"]
+
+[dependency-groups]
+dev = [
+    "pytest==8.4.1",
+    "pytest-asyncio==1.1.0",
+    "black==22.6.0",
+]