docs: update pip install instructions to use uv (#8519)

* update code pip install docs

* update readme to use -U, remove old dockerfile

* [autofix.ci] apply automated fixes

* fix uvlock

* [autofix.ci] apply automated fixes

* uv.lock

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/backend/Dockerfile

@@ -1,14 +0,0 @@
-FROM langflowai/backend_build as backend_build
-
-FROM python:3.10-slim
-WORKDIR /app
-
-RUN apt-get update && apt-get install -y git libpq-dev gcc
-
-COPY --from=backend_build /app/dist/*.whl /app/
-RUN pip install langflow-*.whl
-RUN rm *.whl
-
-EXPOSE 80
-
-CMD [ "uvicorn", "--host", "0.0.0.0", "--port", "7860", "--factory", "langflow.main:create_app" ]

src/backend/base/langflow/components/vectorstores/clickhouse.py

@@ -70,7 +70,7 @@ class ClickhouseVectorStoreComponent(LCVectorStoreComponent):
         except ImportError as e:
             msg = (
                 "Failed to import Clickhouse dependencies. "
-                "Install it using `pip install langflow[clickhouse-connect] --pre`"
+                "Install it using `uv pip install langflow[clickhouse-connect] --pre`"
             )
             raise ImportError(msg) from e
 

src/backend/base/langflow/components/vectorstores/couchbase.py

@@ -42,7 +42,7 @@ class CouchbaseVectorStoreComponent(LCVectorStoreComponent):
             from couchbase.cluster import Cluster
             from couchbase.options import ClusterOptions
         except ImportError as e:
-            msg = "Failed to import Couchbase dependencies. Install it using `pip install langflow[couchbase] --pre`"
+            msg = "Failed to import Couchbase dependencies. Install it using `uv pip install langflow[couchbase] --pre`"
             raise ImportError(msg) from e
 
         try:

src/backend/base/langflow/services/cache/service.py

@@ -207,14 +207,9 @@ class RedisCache(ExternalAsyncBaseCacheService, Generic[LockType]):
             expiration_time (int, optional): Time in seconds after which a
                 cached item expires. Default is 1 hour.
         """
-        try:
-            from redis.asyncio import StrictRedis
-        except ImportError as exc:
-            msg = (
-                "RedisCache requires the redis-py package."
-                " Please install Langflow with the deploy extra: pip install langflow[deploy]"
-            )
-            raise ImportError(msg) from exc
+        # Redis is a main dependency, no need to import check
+        from redis.asyncio import StrictRedis
+
         logger.warning(
             "RedisCache is an experimental feature and may not work as expected."
             " Please report any issues to our GitHub repository."