Confirm sys.path includes current dir for app serve (#12851)

- Make sure sys.path is set properly for langchain app serve
- bump

libs/cli/langchain_cli/cli.py

@@ -6,7 +6,7 @@ from typing_extensions import Annotated
 from langchain_cli.namespaces import app as app_namespace
 from langchain_cli.namespaces import template as template_namespace
 
-__version__ = "0.0.14"
+__version__ = "0.0.15"
 
 app = typer.Typer(no_args_is_help=True, add_completion=False)
 app.add_typer(

libs/cli/langchain_cli/namespaces/app.py

@@ -4,6 +4,7 @@ Manage LangChain apps
 
 import shutil
 import subprocess
+import sys
 from pathlib import Path
 from typing import Dict, List, Optional, Tuple
 
@@ -219,6 +220,9 @@ def serve(
     Starts the LangServe app.
     """
 
+    # add current dir as first entry of path
+    sys.path.append(str(Path.cwd()))
+
     app_str = app if app is not None else "app.server:app"
     host_str = host if host is not None else "127.0.0.1"
 

libs/cli/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "langchain-cli"
-version = "0.0.14"
+version = "0.0.15"
 description = "CLI for interacting with LangChain"
 authors = ["Erick Friis <erick@langchain.dev>"]
 readme = "README.md"