Python Function

Langflow allows you to create a customized tool using the PythonFunction connected to a Tool component. In this example, Regex is used in Python to validate a pattern.

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import re

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def is_brazilian_zipcode(zipcode: str) -> bool:

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pattern = r"\d{5}-?\d{3}"

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# Check if the zip code matches the pattern

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if re.match(pattern, zipcode):

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return True

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return False

tip

When a tool is called, it is often desirable to have its output returned directly to the user. You can do this by setting the return_direct flag for a tool to be True.

The AgentInitializer component is a quick way to construct an agent from the model and tools.

info

The PythonFunction is a custom component that uses the LangChain 🦜🔗 tool decorator. Learn more about it here.

⛓️ Langflow Example

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LangChain Components 🦜🔗

• PythonFunctionTool
• ChatOpenAI
• AgentInitializer