add everyting for docs

2023-07-29 07:00:13 -07:00 · 2023-07-29 07:00:13 -07:00 · 0fe8799f94
commit 0fe8799f94
parent de45a738ee
1015 changed files with 185353 additions and 0 deletions
--- a/docs/extras/modules/callbacks/filecallbackhandler.ipynb
+++ b/docs/extras/modules/callbacks/filecallbackhandler.ipynb
@ -0,0 +1,175 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "63b87b91",
+   "metadata": {},
+   "source": [
+    "# Logging to file\n",
+    "This example shows how to print logs to file. It shows how to use the `FileCallbackHandler`, which does the same thing as [`StdOutCallbackHandler`](https://python.langchain.com/en/latest/modules/callbacks/getting_started.html#using-an-existing-handler), but instead writes the output to file. It also uses the `loguru` library to log other outputs that are not captured by the handler."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "6cb156cc",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "\n",
+      "\u001b[1m> Entering new LLMChain chain...\u001b[0m\n",
+      "Prompt after formatting:\n",
+      "\u001b[32;1m\u001b[1;3m1 + 2 = \u001b[0m\n"
+     ]
+    },
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "\u001b[32m2023-06-01 18:36:38.929\u001b[0m | \u001b[1mINFO    \u001b[0m | \u001b[36m__main__\u001b[0m:\u001b[36m<module>\u001b[0m:\u001b[36m20\u001b[0m - \u001b[1m\n",
+      "\n",
+      "3\u001b[0m\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "\u001b[1m> Finished chain.\u001b[0m\n"
+     ]
+    }
+   ],
+   "source": [
+    "from loguru import logger\n",
+    "\n",
+    "from langchain.callbacks import FileCallbackHandler\n",
+    "from langchain.chains import LLMChain\n",
+    "from langchain.llms import OpenAI\n",
+    "from langchain.prompts import PromptTemplate\n",
+    "\n",
+    "logfile = \"output.log\"\n",
+    "\n",
+    "logger.add(logfile, colorize=True, enqueue=True)\n",
+    "handler = FileCallbackHandler(logfile)\n",
+    "\n",
+    "llm = OpenAI()\n",
+    "prompt = PromptTemplate.from_template(\"1 + {number} = \")\n",
+    "\n",
+    "# this chain will both print to stdout (because verbose=True) and write to 'output.log'\n",
+    "# if verbose=False, the FileCallbackHandler will still write to 'output.log'\n",
+    "chain = LLMChain(llm=llm, prompt=prompt, callbacks=[handler], verbose=True)\n",
+    "answer = chain.run(number=2)\n",
+    "logger.info(answer)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9c50d54f",
+   "metadata": {},
+   "source": [
+    "Now we can open the file `output.log` to see that the output has been captured."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "aa32dc0a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!pip install ansi2html > /dev/null"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "4af00719",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n",
+       "<html>\n",
+       "<head>\n",
+       "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n",
+       "<title></title>\n",
+       "<style type=\"text/css\">\n",
+       ".ansi2html-content { display: inline; white-space: pre-wrap; word-wrap: break-word; }\n",
+       ".body_foreground { color: #AAAAAA; }\n",
+       ".body_background { background-color: #000000; }\n",
+       ".inv_foreground { color: #000000; }\n",
+       ".inv_background { background-color: #AAAAAA; }\n",
+       ".ansi1 { font-weight: bold; }\n",
+       ".ansi3 { font-style: italic; }\n",
+       ".ansi32 { color: #00aa00; }\n",
+       ".ansi36 { color: #00aaaa; }\n",
+       "</style>\n",
+       "</head>\n",
+       "<body class=\"body_foreground body_background\" style=\"font-size: normal;\" >\n",
+       "<pre class=\"ansi2html-content\">\n",
+       "\n",
+       "\n",
+       "<span class=\"ansi1\">&gt; Entering new LLMChain chain...</span>\n",
+       "Prompt after formatting:\n",
+       "<span class=\"ansi1 ansi32\"></span><span class=\"ansi1 ansi3 ansi32\">1 + 2 = </span>\n",
+       "\n",
+       "<span class=\"ansi1\">&gt; Finished chain.</span>\n",
+       "<span class=\"ansi32\">2023-06-01 18:36:38.929</span> | <span class=\"ansi1\">INFO    </span> | <span class=\"ansi36\">__main__</span>:<span class=\"ansi36\">&lt;module&gt;</span>:<span class=\"ansi36\">20</span> - <span class=\"ansi1\">\n",
+       "\n",
+       "3</span>\n",
+       "\n",
+       "</pre>\n",
+       "</body>\n",
+       "\n",
+       "</html>\n"
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "from IPython.display import display, HTML\n",
+    "from ansi2html import Ansi2HTMLConverter\n",
+    "\n",
+    "with open(\"output.log\", \"r\") as f:\n",
+    "    content = f.read()\n",
+    "\n",
+    "conv = Ansi2HTMLConverter()\n",
+    "html = conv.convert(content, full=True)\n",
+    "\n",
+    "display(HTML(html))"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.16"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}