fix some stuff (#12292)

Co-authored-by: Erick Friis <erick@langchain.dev>

libs/cli/README.md

@@ -16,8 +16,6 @@ Install a package
 
 `langchain serve add extraction-summary`
 
-(Activate virtualenv)
-
 Install langserve
 
 `pip install "langserve[all]"`
@@ -38,6 +36,18 @@ app = FastAPI()
 add_routes(app, chain)
 ```
 
+Set env vars
+
+```shell
+export OPENAI_API_KEY=...
+```
+```shell
+export LANGCHAIN_TRACING_V2=true
+export LANGCHAIN_ENDPOINT="https://api.smith.langchain.com"
+export LANGCHAIN_API_KEY="<your-api-key>"
+export LANGCHAIN_PROJECT="extraction-summary"
+```
+
 Run the app
 
 `python app/server.py`

libs/cli/langchain_cli/constants.py

@@ -1,3 +1,4 @@
 DEFAULT_GIT_REPO = "https://github.com/langchain-ai/langchain.git"
+DEFAULT_GIT_REF = "langserve-templates"
 DEFAULT_GIT_SUBDIRECTORY = "templates"
 DEFAULT_GIT_REF = "master"

libs/cli/langchain_cli/namespaces/hub.py

@@ -30,7 +30,7 @@ def new(
     destination_dir = Path.cwd() / name if name != "." else Path.cwd()
 
     # copy over template from ../package_template
-    project_template_dir = Path(__file__).parent.parent.parent / "package_template"
+    project_template_dir = Path(__file__).parents[1] / "package_template"
     shutil.copytree(project_template_dir, destination_dir, dirs_exist_ok=name == ".")
 
     package_name_split = computed_name.split("/")

libs/cli/langchain_cli/namespaces/serve.py

@@ -42,7 +42,7 @@ def new(
     Create a new LangServe application.
     """
     # copy over template from ../project_template
-    project_template_dir = Path(__file__).parent.parent.parent / "project_template"
+    project_template_dir = Path(__file__).parents[1] / "project_template"
     destination_dir = Path.cwd() / name if name != "." else Path.cwd()
     shutil.copytree(project_template_dir, destination_dir, dirs_exist_ok=name == ".")
 

libs/cli/langchain_cli/package_template/pyproject.toml

@@ -13,8 +13,8 @@ fastapi = "^0.104.0"
 sse-starlette = "^1.6.5"
 
 [tool.poetry.group.dev.dependencies]
-langchain-cli = {git = "https://github.com/langchain-ai/langchain.git", rev = "erick/cli", subdirectory = "libs/cli"}
 poethepoet = "^0.24.1"
+langchain-cli = ">=0.0.1rc2"
 
 [tool.langserve]
 export_module = "__package_name__.chain"

libs/cli/langchain_cli/project_template/pyproject.toml

@@ -11,7 +11,7 @@ sse-starlette = "^1.6.5"
 tomli-w = "^1.0.0"
 uvicorn = "^0.23.2"
 fastapi = "^0.103.2"
-langserve = {git = "https://github.com/langchain-ai/langserve"}
+langserve = ">=0.0.16"
 
 [tool.poetry.group.dev.dependencies]
 poethepoet = "^0.24.1"

libs/cli/langchain_cli/utils/git.py

@@ -67,7 +67,6 @@ def parse_dependency_string(package_string: str) -> DependencySource:
         raise NotImplementedError("url dependencies are not supported yet")
     else:
         # it's a default git repo dependency
-        gitstring = DEFAULT_GIT_REPO
         subdirectory = str(Path(DEFAULT_GIT_SUBDIRECTORY) / package_string)
         return DependencySource(
             git=gitstring, ref=DEFAULT_GIT_REF, subdirectory=subdirectory

libs/cli/pyproject.toml

@@ -4,10 +4,6 @@ version = "0.0.3"
 description = "CLI for interacting with LangChain"
 authors = ["Erick Friis <erick@langchain.dev>"]
 readme = "README.md"
-include = [
-    {path="project_template/**/*", format="wheel"},
-    {path="package_template/**/*", format="wheel"}
-]
 
 [tool.poetry.dependencies]
 python = ">=3.8.1,<4.0"