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rogerserper e46cd3b7db Google Search API integration with serper.dev (wrapper, tests, docs, … (#909 )

Adds Google Search integration with [Serper](https://serper.dev) a
low-cost alternative to SerpAPI (10x cheaper + generous free tier).
Includes documentation, tests and examples. Hopefully I am not missing
anything.

Developers can sign up for a free account at
[serper.dev](https://serper.dev) and obtain an api key.

## Usage

```python
from langchain.utilities import GoogleSerperAPIWrapper
from langchain.llms.openai import OpenAI
from langchain.agents import initialize_agent, Tool

import os
os.environ["SERPER_API_KEY"] = ""
os.environ['OPENAI_API_KEY'] = ""

llm = OpenAI(temperature=0)
search = GoogleSerperAPIWrapper()
tools = [
    Tool(
        name="Intermediate Answer",
        func=search.run
    )
]

self_ask_with_search = initialize_agent(tools, llm, agent="self-ask-with-search", verbose=True)
self_ask_with_search.run("What is the hometown of the reigning men's U.S. Open champion?")
```

### Output
```
Entering new AgentExecutor chain...
 Yes.
Follow up: Who is the reigning men's U.S. Open champion?
Intermediate answer: Current champions Carlos Alcaraz, 2022 men's singles champion.
Follow up: Where is Carlos Alcaraz from?
Intermediate answer: El Palmar, Spain
So the final answer is: El Palmar, Spain

> Finished chain.

'El Palmar, Spain'
```

2023-02-15 22:47:17 -08:00

8.5 KiB

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Search Tools

This notebook shows off usage of various search tools.

In [ ]:

from langchain.agents import load_tools
from langchain.agents import initialize_agent
from langchain.llms import OpenAI

In [3]:

llm = OpenAI(temperature=0)

Google Serper API Wrapper

First, let's try to use the Google Serper API tool.

In [4]:

tools = load_tools(["google-serper"], llm=llm)

In [5]:

agent = initialize_agent(tools, llm, agent="zero-shot-react-description", verbose=True)

In [6]:

agent.run("What is the weather in Pomfret?")

Out [6]:


[1m> Entering new AgentExecutor chain...[0m
[32;1m[1;3m I need to find out what the current weather is in Pomfret.
Action: Search
Action Input: "weather in Pomfret"[0m
Observation: [36;1m[1;3mShowers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.[0m
Thought:[32;1m[1;3m I now know the current weather in Pomfret.
Final Answer: Showers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.[0m
[1m> Finished AgentExecutor chain.[0m

'Showers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.'

SerpAPI

Now, let's use the SerpAPI tool.

In [4]:

tools = load_tools(["serpapi"], llm=llm)

In [5]:

agent = initialize_agent(tools, llm, agent="zero-shot-react-description", verbose=True)

In [6]:

agent.run("What is the weather in Pomfret?")

Out [6]:


[1m> Entering new AgentExecutor chain...[0m
[32;1m[1;3m I need to find out what the current weather is in Pomfret.
Action: Search
Action Input: "weather in Pomfret"[0m
Observation: [36;1m[1;3mShowers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.[0m
Thought:[32;1m[1;3m I now know the current weather in Pomfret.
Final Answer: Showers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.[0m
[1m> Finished AgentExecutor chain.[0m

'Showers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.'

GoogleSearchAPIWrapper

Now, let's use the official Google Search API Wrapper.

In [13]:

tools = load_tools(["google-search"], llm=llm)

In [14]:

agent = initialize_agent(tools, llm, agent="zero-shot-react-description", verbose=True)

In [17]:

agent.run("What is the weather in Pomfret?")

Out [17]:

[1m> Entering new AgentExecutor chain...[0m
[32;1m[1;3m I should look up the current weather conditions.
Action: Google Search
Action Input: "weather in Pomfret"[0m
Observation: [36;1m[1;3mShowers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%. Pomfret, CT Weather Forecast, with current conditions, wind, air quality, and what to expect for the next 3 days. Hourly Weather-Pomfret, CT. As of 12:52 am EST. Special Weather Statement +2 ... Hazardous Weather Conditions. Special Weather Statement ... Pomfret CT. Tonight ... National Digital Forecast Database Maximum Temperature Forecast. Pomfret Center Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for ... Pomfret, CT 12 hour by hour weather forecast includes precipitation, temperatures, sky conditions, rain chance, dew-point, relative humidity, wind direction ... North Pomfret Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for ... Today's Weather - Pomfret, CT. Dec 31, 2022 4:00 PM. Putnam MS. --. Weather forecast icon. Feels like --. Hi --. Lo --. Pomfret, CT temperature trend for the next 14 Days. Find daytime highs and nighttime lows from TheWeatherNetwork.com. Pomfret, MD Weather Forecast Date: 332 PM EST Wed Dec 28 2022. The area/counties/county of: Charles, including the cites of: St. Charles and Waldorf.[0m
Thought:[32;1m[1;3m I now know the current weather conditions in Pomfret.
Final Answer: Showers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.[0m
[1m> Finished AgentExecutor chain.[0m

'Showers early becoming a steady light rain later in the day. Near record high temperatures. High around 60F. Winds SW at 10 to 15 mph. Chance of rain 60%.'

8.5 KiB Raw Blame History

Search Tools

Google Serper API Wrapper

SerpAPI

GoogleSearchAPIWrapper

8.5 KiB

Raw Blame History