fixes to docs (#5919)

docs/modules/indexes/document_loaders.rst

@@ -116,6 +116,7 @@ We need access tokens and sometime other parameters to get access to these datas
    ./document_loaders/examples/discord_loader.ipynb
    ./document_loaders/examples/docugami.ipynb
    ./document_loaders/examples/duckdb.ipynb
+   ./document_loaders/examples/fauna.ipynb
    ./document_loaders/examples/figma.ipynb
    ./document_loaders/examples/gitbook.ipynb
    ./document_loaders/examples/git.ipynb
@@ -137,6 +138,7 @@ We need access tokens and sometime other parameters to get access to these datas
    ./document_loaders/examples/reddit.ipynb
    ./document_loaders/examples/roam.ipynb
    ./document_loaders/examples/slack.ipynb
+   ./document_loaders/examples/snowflake.ipynb
    ./document_loaders/examples/spreedly.ipynb
    ./document_loaders/examples/stripe.ipynb
    ./document_loaders/examples/tomarkdown.ipynb

docs/modules/indexes/document_loaders/examples/snowflake.ipynb

@@ -1,5 +1,14 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Snowflake\n",
+    "\n",
+    "This notebooks goes over how to load documents from Snowflake"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -16,7 +25,7 @@
    "outputs": [],
    "source": [
     "import settings as s\n",
-    "from langchain.document_loaders.snowflake_loader import SnowflakeLoader"
+    "from langchain.document_loaders import SnowflakeLoader"
    ]
   },
   {
@@ -81,7 +90,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.16"
+   "version": "3.9.1"
   }
  },
  "nbformat": 4,

langchain/document_loaders/__init__.py

@@ -90,6 +90,7 @@ from langchain.document_loaders.s3_directory import S3DirectoryLoader
 from langchain.document_loaders.s3_file import S3FileLoader
 from langchain.document_loaders.sitemap import SitemapLoader
 from langchain.document_loaders.slack_directory import SlackDirectoryLoader
+from langchain.document_loaders.snowflake_loader import SnowflakeLoader
 from langchain.document_loaders.spreedly import SpreedlyLoader
 from langchain.document_loaders.srt import SRTLoader
 from langchain.document_loaders.stripe import StripeLoader
@@ -244,4 +245,5 @@ __all__ = [
     "WhatsAppChatLoader",
     "WikipediaLoader",
     "YoutubeLoader",
+    "SnowflakeLoader",
 ]

langchain/document_loaders/snowflake_loader.py

@@ -2,8 +2,6 @@ from __future__ import annotations
 
 from typing import Any, Dict, Iterator, List, Optional, Tuple
 
-from snowflake.connector import DictCursor
-
 from langchain.docstore.document import Document
 from langchain.document_loaders.base import BaseLoader
 
@@ -61,6 +59,7 @@ class SnowflakeLoader(BaseLoader):
     def _execute_query(self) -> List[Dict[str, Any]]:
         try:
             import snowflake.connector
+            from snowflake.connector import DictCursor
         except ImportError as ex:
             raise ValueError(
                 "Could not import snowflake-connector-python package. "
@@ -77,7 +76,6 @@ class SnowflakeLoader(BaseLoader):
             schema=self.schema,
             parameters=self.parameters,
         )
-        query_result = []
         try:
             cur = conn.cursor(DictCursor)
             cur.execute("USE DATABASE " + self.database)