build(test-langchain): Migrate to uv and pyproject.toml (#34)

Replace pip/requirements.txt with uv/pyproject.toml for dependency
management. Update run scripts to use uv run instead of manual venv
creation and pip install.

Fixes PY-2461

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: ericapisani

test-langchain/pyproject.toml

@@ -0,0 +1,16 @@
+[project]
+name = "test-langchain"
+version = "0"
+requires-python = ">=3.12"
+
+dependencies = [
+    "ipdb>=0.13.13",
+    "langchain>=0.3.18",
+    "langchain-anthropic>=0.3.12",
+    "langchain-community>=0.3.17",
+    "langchain-openai>=0.3.7",
+    "sentry-sdk",
+]
+
+[tool.uv.sources]
+sentry-sdk = { path = "../../sentry-python", editable = true }

test-langchain/requirements.txt

@@ -1,12 +1,9 @@
 #!/usr/bin/env bash
-
 set -euo pipefail
-
 reset
 
-python3 -m venv .venv
-source .venv/bin/activate
-
-pip install -r requirements.txt
+if ! command -v uv &> /dev/null; then
+    curl -LsSf https://astral.sh/uv/install.sh | sh
+fi
 
-python3 main.py
+uv run python3 main.py

test-langchain/run.sh

@@ -1,12 +1,9 @@
 #!/usr/bin/env bash
-
 set -euo pipefail
-
 reset
 
-python3 -m venv .venv
-source .venv/bin/activate
-
-pip install -r requirements.txt
+if ! command -v uv &> /dev/null; then
+    curl -LsSf https://astral.sh/uv/install.sh | sh
+fi
 
-python3 main_async.py
+uv run python3 main_async.py

test-langchain/run_async.sh

@@ -1,17 +1,9 @@
 #!/usr/bin/env bash
-
 set -euo pipefail
-
 reset
 
-# Set up environment variables for API keys
-# export OPENAI_API_KEY="your-openai-key-here"
-# export ANTHROPIC_API_KEY="your-anthropic-key-here"
-# export SENTRY_DSN="your-sentry-dsn-here"
-
-python3 -m venv .venv
-source .venv/bin/activate
-
-pip install -r requirements.txt
+if ! command -v uv &> /dev/null; then
+    curl -LsSf https://astral.sh/uv/install.sh | sh
+fi
 
-python3 main_tool.py
+uv run python3 main_tool.py