Bind-Tools
Sat 17 May 2025 
!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")





tools = [
    {
        "type": "function",
        "function": {
            "name": "get_current_weather",
            "description": "Get the current weather in a given location",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {
                        "type": "string",
                        "description": "The city and state, e.g. San Francisco, CA",
                    },
                    "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]},
                },
                "required": ["location"],
            },
        },
    }
]

model = ChatOpenAI(model="gpt-4o-mini").bind(tools=tools)
result = model.invoke("What's the weather in SF, NYC and LA?")

result.dict()

{'content': '',
 'additional_kwargs': {'tool_calls': [{'id': 'call_cTIA7lIIxqYMNxeeOpklF7LU',
    'function': {'arguments': '{"location": "San Francisco, CA"}',
     'name': 'get_current_weather'},
    'type': 'function'},
   {'id': 'call_s9WkyKPGO0qe1JnDEN9Ko4LM',
    'function': {'arguments': '{"location": "New York, NY"}',
     'name': 'get_current_weather'},
    'type': 'function'},
   {'id': 'call_7dQT0X65fKEW3eQ74DwP61UK',
    'function': {'arguments': '{"location": "Los Angeles, CA"}',
     'name': 'get_current_weather'},
    'type': 'function'}],
  'refusal': None},
 'response_metadata': {'token_usage': {'completion_tokens': 70,
   'prompt_tokens': 82,
   'total_tokens': 152,
   'completion_tokens_details': {'accepted_prediction_tokens': 0,
    'audio_tokens': 0,
    'reasoning_tokens': 0,
    'rejected_prediction_tokens': 0},
   'prompt_tokens_details': {'audio_tokens': 0, 'cached_tokens': 0}},
  'model_name': 'gpt-4o-mini-2024-07-18',
  'system_fingerprint': 'fp_0705bf87c0',
  'finish_reason': 'tool_calls',
  'logprobs': None},
 'type': 'ai',
 'name': None,
 'id': 'run-1b8c2e8b-d7d9-4015-b51f-f843c27eaa69-0',
 'example': False,
 'tool_calls': [{'name': 'get_current_weather',
   'args': {'location': 'San Francisco, CA'},
   'id': 'call_cTIA7lIIxqYMNxeeOpklF7LU',
   'type': 'tool_call'},
  {'name': 'get_current_weather',
   'args': {'location': 'New York, NY'},
   'id': 'call_s9WkyKPGO0qe1JnDEN9Ko4LM',
   'type': 'tool_call'},
  {'name': 'get_current_weather',
   'args': {'location': 'Los Angeles, CA'},
   'id': 'call_7dQT0X65fKEW3eQ74DwP61UK',
   'type': 'tool_call'}],
 'invalid_tool_calls': [],
 'usage_metadata': {'input_tokens': 82,
  'output_tokens': 70,
  'total_tokens': 152,
  'input_token_details': {'audio': 0, 'cache_read': 0},
  'output_token_details': {'audio': 0, 'reasoning': 0}}}

result.__dict__

{'content': '',
 'additional_kwargs': {'tool_calls': [{'id': 'call_cTIA7lIIxqYMNxeeOpklF7LU',
    'function': {'arguments': '{"location": "San Francisco, CA"}',
     'name': 'get_current_weather'},
    'type': 'function'},
   {'id': 'call_s9WkyKPGO0qe1JnDEN9Ko4LM',
    'function': {'arguments': '{"location": "New York, NY"}',
     'name': 'get_current_weather'},
    'type': 'function'},
   {'id': 'call_7dQT0X65fKEW3eQ74DwP61UK',
    'function': {'arguments': '{"location": "Los Angeles, CA"}',
     'name': 'get_current_weather'},
    'type': 'function'}],
  'refusal': None},
 'response_metadata': {'token_usage': {'completion_tokens': 70,
   'prompt_tokens': 82,
   'total_tokens': 152,
   'completion_tokens_details': {'accepted_prediction_tokens': 0,
    'audio_tokens': 0,
    'reasoning_tokens': 0,
    'rejected_prediction_tokens': 0},
   'prompt_tokens_details': {'audio_tokens': 0, 'cached_tokens': 0}},
  'model_name': 'gpt-4o-mini-2024-07-18',
  'system_fingerprint': 'fp_0705bf87c0',
  'finish_reason': 'tool_calls',
  'logprobs': None},
 'type': 'ai',
 'name': None,
 'id': 'run-1b8c2e8b-d7d9-4015-b51f-f843c27eaa69-0',
 'example': False,
 'tool_calls': [{'name': 'get_current_weather',
   'args': {'location': 'San Francisco, CA'},
   'id': 'call_cTIA7lIIxqYMNxeeOpklF7LU',
   'type': 'tool_call'},
  {'name': 'get_current_weather',
   'args': {'location': 'New York, NY'},
   'id': 'call_s9WkyKPGO0qe1JnDEN9Ko4LM',
   'type': 'tool_call'},
  {'name': 'get_current_weather',
   'args': {'location': 'Los Angeles, CA'},
   'id': 'call_7dQT0X65fKEW3eQ74DwP61UK',
   'type': 'tool_call'}],
 'invalid_tool_calls': [],
 'usage_metadata': {'input_tokens': 82,
  'output_tokens': 70,
  'total_tokens': 152,
  'input_token_details': {'audio': 0, 'cache_read': 0},
  'output_token_details': {'audio': 0, 'reasoning': 0}}}

result_dict = result.dict()

import json

formatted_json = json.dumps(result_dict, indent=4, default=str)

formatted_json

'{\n    "content": "",\n    "additional_kwargs": {\n        "tool_calls": [\n            {\n                "id": "call_cTIA7lIIxqYMNxeeOpklF7LU",\n                "function": {\n                    "arguments": "{\\"location\\": \\"San Francisco, CA\\"}",\n                    "name": "get_current_weather"\n                },\n                "type": "function"\n            },\n            {\n                "id": "call_s9WkyKPGO0qe1JnDEN9Ko4LM",\n                "function": {\n                    "arguments": "{\\"location\\": \\"New York, NY\\"}",\n                    "name": "get_current_weather"\n                },\n                "type": "function"\n            },\n            {\n                "id": "call_7dQT0X65fKEW3eQ74DwP61UK",\n                "function": {\n                    "arguments": "{\\"location\\": \\"Los Angeles, CA\\"}",\n                    "name": "get_current_weather"\n                },\n                "type": "function"\n            }\n        ],\n        "refusal": null\n    },\n    "response_metadata": {\n        "token_usage": {\n            "completion_tokens": 70,\n            "prompt_tokens": 82,\n            "total_tokens": 152,\n            "completion_tokens_details": {\n                "accepted_prediction_tokens": 0,\n                "audio_tokens": 0,\n                "reasoning_tokens": 0,\n                "rejected_prediction_tokens": 0\n            },\n            "prompt_tokens_details": {\n                "audio_tokens": 0,\n                "cached_tokens": 0\n            }\n        },\n        "model_name": "gpt-4o-mini-2024-07-18",\n        "system_fingerprint": "fp_0705bf87c0",\n        "finish_reason": "tool_calls",\n        "logprobs": null\n    },\n    "type": "ai",\n    "name": null,\n    "id": "run-1b8c2e8b-d7d9-4015-b51f-f843c27eaa69-0",\n    "example": false,\n    "tool_calls": [\n        {\n            "name": "get_current_weather",\n            "args": {\n                "location": "San Francisco, CA"\n            },\n            "id": "call_cTIA7lIIxqYMNxeeOpklF7LU",\n            "type": "tool_call"\n        },\n        {\n            "name": "get_current_weather",\n            "args": {\n                "location": "New York, NY"\n            },\n            "id": "call_s9WkyKPGO0qe1JnDEN9Ko4LM",\n            "type": "tool_call"\n        },\n        {\n            "name": "get_current_weather",\n            "args": {\n                "location": "Los Angeles, CA"\n            },\n            "id": "call_7dQT0X65fKEW3eQ74DwP61UK",\n            "type": "tool_call"\n        }\n    ],\n    "invalid_tool_calls": [],\n    "usage_metadata": {\n        "input_tokens": 82,\n        "output_tokens": 70,\n        "total_tokens": 152,\n        "input_token_details": {\n            "audio": 0,\n            "cache_read": 0\n        },\n        "output_token_details": {\n            "audio": 0,\n            "reasoning": 0\n        }\n    }\n}'

from IPython.display import JSON

JSON(result_dict)

<IPython.core.display.JSON object>

Score: 15

Category: langchain

Binding-Stop-Sequence
Sat 17 May 2025 
!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")

# https://python.langchain.com/docs/how_to/binding/

from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import …

Category: langchain

Read More

Canada-Facts
Sat 17 May 2025 
# https://python.langchain.com/docs/how_to/structured_output/
# https://python.langchain.com/docs/how_to/
# https://platform.openai.com/usage

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

llm = ChatOpenAI(model="gpt-4o-mini")

from typing import Optional …

Category: langchain

Read More

Chain-Decorator-2
Sat 17 May 2025 
!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")

# https://python.langchain.com/docs/how_to/functions/

from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import …

Category: langchain

Read More

Chain-Internals
Sat 17 May 2025

8
How to: add message history (memory) to a chain
https://python.langchain.com/docs/how_to/message_history/

!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model …

Category: langchain

Read More

Chains
Sat 17 May 2025 
from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")

from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate

prompt = ChatPromptTemplate.from_template("tell me a joke about {topic}")
parser = StrOutputParser()
chain …

Category: langchain

Read More

Coercion
Sat 17 May 2025 
from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")

from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate

prompt = ChatPromptTemplate.from_template("tell me a joke about {topic}")

chain = prompt | model …

Category: langchain

Read More

Custom-Functions
Sat 17 May 2025 
!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")



from operator import itemgetter

from langchain_core.prompts import ChatPromptTemplate
from langchain_core.runnables import RunnableLambda
from langchain_openai …

Category: langchain

Read More

Cutom-Parser-1
Sat 17 May 2025 
!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

# https://python.langchain.com/docs/how_to/functions/

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")

from langchain_core.runnables import RunnableLambda
from langchain_core.prompts import …

Category: langchain

Read More

Cutom-Parser-2
Sat 17 May 2025 
!python --version

Python 3.12.4

from constants import OPENAI_API_KEY

!pip show langchain-openai | grep "Version:"

Version: 0.2.9

import os

os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY

# https://python.langchain.com/docs/how_to/functions/

from langchain_openai import ChatOpenAI

model = ChatOpenAI(model="gpt-4o-mini")

from langchain_core.runnables import RunnableLambda
from langchain_core.prompts import …

Category: langchain

Read More
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