mirror of
https://github.com/hwchase17/langchain
synced 2024-11-02 09:40:22 +00:00
b2fd41331e
Addded missed docstrings. Fixed inconsistency in docstrings. **Note** CC @efriis There were PR errors on `langchain_experimental/prompt_injection_identifier/hugging_face_identifier.py` But, I didn't touch this file in this PR! Can it be some cache problems? I fixed this error.
99 lines
3.3 KiB
Python
99 lines
3.3 KiB
Python
"""Util that calls Google Finance Search."""
|
|
from typing import Any, Dict, Optional, cast
|
|
|
|
from langchain_core.pydantic_v1 import BaseModel, Extra, SecretStr, root_validator
|
|
from langchain_core.utils import convert_to_secret_str, get_from_dict_or_env
|
|
|
|
|
|
class GoogleFinanceAPIWrapper(BaseModel):
|
|
"""Wrapper for SerpApi's Google Finance API
|
|
|
|
You can create SerpApi.com key by signing up at: https://serpapi.com/users/sign_up.
|
|
The wrapper uses the SerpApi.com python package:
|
|
https://serpapi.com/integrations/python
|
|
To use, you should have the environment variable ``SERPAPI_API_KEY``
|
|
set with your API key, or pass `serp_api_key` as a named parameter
|
|
to the constructor.
|
|
Example:
|
|
.. code-block:: python
|
|
from langchain_community.utilities import GoogleFinanceAPIWrapper
|
|
google_Finance = GoogleFinanceAPIWrapper()
|
|
google_Finance.run('langchain')
|
|
"""
|
|
|
|
serp_search_engine: Any
|
|
serp_api_key: Optional[SecretStr] = None
|
|
|
|
class Config:
|
|
"""Configuration for this pydantic object."""
|
|
|
|
extra = Extra.forbid
|
|
|
|
@root_validator()
|
|
def validate_environment(cls, values: Dict) -> Dict:
|
|
"""Validate that api key and python package exists in environment."""
|
|
values["serp_api_key"] = convert_to_secret_str(
|
|
get_from_dict_or_env(values, "serp_api_key", "SERPAPI_API_KEY")
|
|
)
|
|
|
|
try:
|
|
from serpapi import SerpApiClient
|
|
|
|
except ImportError:
|
|
raise ImportError(
|
|
"google-search-results is not installed. "
|
|
"Please install it with `pip install google-search-results"
|
|
">=2.4.2`"
|
|
)
|
|
serp_search_engine = SerpApiClient
|
|
values["serp_search_engine"] = serp_search_engine
|
|
|
|
return values
|
|
|
|
def run(self, query: str) -> str:
|
|
"""Run query through Google Finance with Serpapi"""
|
|
serpapi_api_key = cast(SecretStr, self.serp_api_key)
|
|
params = {
|
|
"engine": "google_finance",
|
|
"api_key": serpapi_api_key.get_secret_value(),
|
|
"q": query,
|
|
}
|
|
|
|
total_results = {}
|
|
client = self.serp_search_engine(params)
|
|
total_results = client.get_dict()
|
|
|
|
if not total_results:
|
|
return "Nothing was found from the query: " + query
|
|
|
|
markets = total_results.get("markets", {})
|
|
res = "\nQuery: " + query + "\n"
|
|
|
|
if "futures_chain" in total_results:
|
|
futures_chain = total_results.get("futures_chain", [])[0]
|
|
stock = futures_chain["stock"]
|
|
price = futures_chain["price"]
|
|
temp = futures_chain["price_movement"]
|
|
percentage = temp["percentage"]
|
|
movement = temp["movement"]
|
|
res += (
|
|
f"stock: {stock}\n"
|
|
+ f"price: {price}\n"
|
|
+ f"percentage: {percentage}\n"
|
|
+ f"movement: {movement}\n"
|
|
)
|
|
|
|
else:
|
|
res += "No summary information\n"
|
|
|
|
for key in markets:
|
|
if (key == "us") or (key == "asia") or (key == "europe"):
|
|
res += key
|
|
res += ": price = "
|
|
res += str(markets[key][0]["price"])
|
|
res += ", movement = "
|
|
res += markets[key][0]["price_movement"]["movement"]
|
|
res += "\n"
|
|
|
|
return res
|