Merge branch 'dev' into mainPage

This commit is contained in:
Lucas Oliveira 2023-06-05 07:43:31 -03:00
commit 56d0898861
33 changed files with 437 additions and 251 deletions

164
poetry.lock generated
View file

@ -1,4 +1,4 @@
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{file = "faiss_cpu-1.7.4-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:12d45e0157024eb3249842163162983a1ac8b458f1a8b17bbf86f01be4585a99"},
{file = "faiss_cpu-1.7.4-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2f0eab359e066d32c874f51a7d4bf6440edeec068b7fe47e6d803c73605a8b4c"},
{file = "faiss_cpu-1.7.4-cp39-cp39-win_amd64.whl", hash = "sha256:98459ceeeb735b9df1a5b94572106ffe0a6ce740eb7e4626715dd218657bb4dc"},
]
[[package]]
name = "fake-useragent"
version = "1.1.3"
@ -1211,14 +1265,14 @@ importlib-resources = {version = ">=5.0", markers = "python_version < \"3.10\""}
[[package]]
name = "fastapi"
version = "0.95.2"
version = "0.96.0"
description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
category = "main"
optional = false
python-versions = ">=3.7"
files = [
{file = "fastapi-0.95.2-py3-none-any.whl", hash = "sha256:d374dbc4ef2ad9b803899bd3360d34c534adc574546e25314ab72c0c4411749f"},
{file = "fastapi-0.95.2.tar.gz", hash = "sha256:4d9d3e8c71c73f11874bcf5e33626258d143252e329a01002f767306c64fb982"},
{file = "fastapi-0.96.0-py3-none-any.whl", hash = "sha256:b8e11fe81e81eab4e1504209917338e0b80f783878a42c2b99467e5e1019a1e9"},
{file = "fastapi-0.96.0.tar.gz", hash = "sha256:71232d47c2787446991c81c41c249f8a16238d52d779c0e6b43927d3773dbe3c"},
]
[package.dependencies]
@ -1387,14 +1441,14 @@ uritemplate = ">=3.0.1,<5"
[[package]]
name = "google-auth"
version = "2.19.0"
version = "2.19.1"
description = "Google Authentication Library"
category = "main"
optional = false
python-versions = ">=3.6"
files = [
{file = "google-auth-2.19.0.tar.gz", hash = "sha256:f39d528077ac540793dd3c22a8706178f157642a67d874db25c640b7fead277e"},
{file = "google_auth-2.19.0-py2.py3-none-any.whl", hash = "sha256:be617bfaf77774008e9d177573f782e109188c8a64ae6e744285df5cea3e7df6"},
{file = "google-auth-2.19.1.tar.gz", hash = "sha256:a9cfa88b3e16196845e64a3658eb953992129d13ac7337b064c6546f77c17183"},
{file = "google_auth-2.19.1-py2.py3-none-any.whl", hash = "sha256:ea165e014c7cbd496558796b627c271aa8c18b4cba79dc1cc962b24c5efdfb85"},
]
[package.dependencies]
@ -2037,14 +2091,14 @@ test = ["flaky", "ipyparallel", "pre-commit", "pytest (>=7.0)", "pytest-asyncio"
[[package]]
name = "ipython"
version = "8.13.2"
version = "8.14.0"
description = "IPython: Productive Interactive Computing"
category = "dev"
optional = false
python-versions = ">=3.9"
files = [
{file = "ipython-8.13.2-py3-none-any.whl", hash = "sha256:ffca270240fbd21b06b2974e14a86494d6d29290184e788275f55e0b55914926"},
{file = "ipython-8.13.2.tar.gz", hash = "sha256:7dff3fad32b97f6488e02f87b970f309d082f758d7b7fc252e3b19ee0e432dbb"},
{file = "ipython-8.14.0-py3-none-any.whl", hash = "sha256:248aca623f5c99a6635bc3857677b7320b9b8039f99f070ee0d20a5ca5a8e6bf"},
{file = "ipython-8.14.0.tar.gz", hash = "sha256:1d197b907b6ba441b692c48cf2a3a2de280dc0ac91a3405b39349a50272ca0a1"},
]
[package.dependencies]
@ -2376,13 +2430,13 @@ text-helpers = ["chardet (>=5.1.0,<6.0.0)"]
[[package]]
name = "langchain-serve"
version = "0.0.40"
version = "0.0.41"
description = "Langchain Serve - serve your langchain apps on Jina AI Cloud."
category = "main"
optional = true
python-versions = "*"
files = [
{file = "langchain-serve-0.0.40.tar.gz", hash = "sha256:c60b173fcf0b682fbb70d34e8f485ce168e2229f55cb5c4ffbc26a5206af1c06"},
{file = "langchain-serve-0.0.41.tar.gz", hash = "sha256:fcf0d3ac9e48b5b24825ae2e1d8a383795c5744b18ef61cb74a99020a9e5d46a"},
]
[package.dependencies]
@ -4679,14 +4733,14 @@ idna2008 = ["idna"]
[[package]]
name = "rich"
version = "13.3.5"
version = "13.4.1"
description = "Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal"
category = "main"
optional = false
python-versions = ">=3.7.0"
files = [
{file = "rich-13.3.5-py3-none-any.whl", hash = "sha256:69cdf53799e63f38b95b9bf9c875f8c90e78dd62b2f00c13a911c7a3b9fa4704"},
{file = "rich-13.3.5.tar.gz", hash = "sha256:2d11b9b8dd03868f09b4fffadc84a6a8cda574e40dc90821bd845720ebb8e89c"},
{file = "rich-13.4.1-py3-none-any.whl", hash = "sha256:d204aadb50b936bf6b1a695385429d192bc1fdaf3e8b907e8e26f4c4e4b5bf75"},
{file = "rich-13.4.1.tar.gz", hash = "sha256:76f6b65ea7e5c5d924ba80e322231d7cb5b5981aa60bfc1e694f1bc097fe6fe1"},
]
[package.dependencies]
@ -5100,14 +5154,14 @@ doc = ["reno", "sphinx", "tornado (>=4.5)"]
[[package]]
name = "textual"
version = "0.26.0"
version = "0.27.0"
description = "Modern Text User Interface framework"
category = "main"
optional = true
python-versions = ">=3.7,<4.0"
files = [
{file = "textual-0.26.0-py3-none-any.whl", hash = "sha256:1efd04e9f61b3e95fd1c65436d3262f99e3f86cdeb524d13045bb551eb615c02"},
{file = "textual-0.26.0.tar.gz", hash = "sha256:78094c83017d2836b726513abdf434cc034a0e68cc45e63b3b056c9b8b7fa673"},
{file = "textual-0.27.0-py3-none-any.whl", hash = "sha256:dc45eaf7da330686c56d6f76f59d05fd216ce6aad90fa44ee269881efc622151"},
{file = "textual-0.27.0.tar.gz", hash = "sha256:8bdcb09dc35a706ef939b1276ccfdec10eaaee6147b41cb7587cf33298a8dd33"},
]
[package.dependencies]
@ -6180,4 +6234,4 @@ deploy = ["langchain-serve"]
[metadata]
lock-version = "2.0"
python-versions = ">=3.9,<3.12"
content-hash = "2bf357ad30f79c68751b34c991b4a73767ceb628657f4133228d4eb487d8a6fb"
content-hash = "4cac7dea0c1222711ba7eed82d5716d5e361d454edb6e0299b387fbb115d2c3d"

View file

@ -1,6 +1,6 @@
[tool.poetry]
name = "langflow"
version = "0.0.79"
version = "0.0.80"
description = "A Python package with a built-in web application"
authors = ["Logspace <contact@logspace.ai>"]
maintainers = [
@ -22,7 +22,7 @@ langflow = "langflow.__main__:main"
[tool.poetry.dependencies]
python = ">=3.9,<3.12"
fastapi = "^0.95.0"
fastapi = "^0.96.0"
uvicorn = "^0.20.0"
beautifulsoup4 = "^4.11.2"
google-search-results = "^2.4.1"
@ -57,6 +57,8 @@ jina = "3.15.2"
sentence-transformers = "^2.2.2"
ctransformers = "^0.2.2"
cohere = "^4.6.0"
faiss-cpu = "^1.7.4"
anthropic = "^0.2.9"
[tool.poetry.group.dev.dependencies]

View file

@ -9,7 +9,7 @@ from langflow.api.base import (
PromptValidationResponse,
validate_prompt,
)
from langflow.graph.node.types import VectorStoreNode
from langflow.graph.vertex.types import VectorStoreVertex
from langflow.interface.run import build_graph
from langflow.utils.logger import logger
from langflow.utils.validate import validate_code
@ -49,7 +49,7 @@ def post_validate_node(node_id: str, data: dict):
node = graph.get_node(node_id)
if node is None:
raise ValueError(f"Node {node_id} not found")
if not isinstance(node, VectorStoreNode):
if not isinstance(node, VectorStoreVertex):
node.build()
return json.dumps({"valid": True, "params": str(node._built_object_repr())})
except Exception as e:

View file

@ -55,6 +55,8 @@ llms:
- LlamaCpp
- CTransformers
- Cohere
- Anthropic
- ChatAnthropic
memories:
- ConversationBufferMemory
- ConversationSummaryMemory
@ -79,7 +81,7 @@ tools:
- Calculator
- Serper Search
- Tool
- PythonFunction
- PythonFunctionTool
- JsonSpec
- News API
- TMDB API
@ -118,6 +120,7 @@ vectorstores:
- Chroma
- Qdrant
- Weaviate
- FAISS
wrappers:
- RequestsWrapper
# - ChatPromptTemplate

View file

@ -4,7 +4,7 @@ from langflow.template import frontend_node
CUSTOM_NODES = {
"prompts": {"ZeroShotPrompt": frontend_node.prompts.ZeroShotPromptNode()},
"tools": {
"PythonFunction": frontend_node.tools.PythonFunctionNode(),
"PythonFunctionTool": frontend_node.tools.PythonFunctionToolNode(),
"Tool": frontend_node.tools.ToolNode(),
},
"agents": {

View file

@ -1,35 +1,35 @@
from langflow.graph.edge.base import Edge
from langflow.graph.graph.base import Graph
from langflow.graph.node.base import Node
from langflow.graph.node.types import (
AgentNode,
ChainNode,
DocumentLoaderNode,
EmbeddingNode,
LLMNode,
MemoryNode,
PromptNode,
TextSplitterNode,
ToolNode,
ToolkitNode,
VectorStoreNode,
WrapperNode,
from langflow.graph.vertex.base import Vertex
from langflow.graph.vertex.types import (
AgentVertex,
ChainVertex,
DocumentLoaderVertex,
EmbeddingVertex,
LLMVertex,
MemoryVertex,
PromptVertex,
TextSplitterVertex,
ToolVertex,
ToolkitVertex,
VectorStoreVertex,
WrapperVertex,
)
__all__ = [
"Graph",
"Node",
"Vertex",
"Edge",
"AgentNode",
"ChainNode",
"DocumentLoaderNode",
"EmbeddingNode",
"LLMNode",
"MemoryNode",
"PromptNode",
"TextSplitterNode",
"ToolNode",
"ToolkitNode",
"VectorStoreNode",
"WrapperNode",
"AgentVertex",
"ChainVertex",
"DocumentLoaderVertex",
"EmbeddingVertex",
"LLMVertex",
"MemoryVertex",
"PromptVertex",
"TextSplitterVertex",
"ToolVertex",
"ToolkitVertex",
"VectorStoreVertex",
"WrapperVertex",
]

View file

@ -2,13 +2,13 @@ from langflow.utils.logger import logger
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from langflow.graph.node.base import Node
from langflow.graph.vertex.base import Vertex
class Edge:
def __init__(self, source: "Node", target: "Node"):
self.source: "Node" = source
self.target: "Node" = target
def __init__(self, source: "Vertex", target: "Vertex"):
self.source: "Vertex" = source
self.target: "Vertex" = target
self.validate_edge()
def validate_edge(self) -> None:
@ -41,7 +41,7 @@ class Edge:
logger.debug(self.target_reqs)
if no_matched_type:
raise ValueError(
f"Edge between {self.source.node_type} and {self.target.node_type} "
f"Edge between {self.source.vertex_type} and {self.target.vertex_type} "
f"has no matched type"
)

View file

@ -1,12 +1,12 @@
from typing import Dict, List, Type, Union
from langflow.graph.edge.base import Edge
from langflow.graph.graph.constants import NODE_TYPE_MAP
from langflow.graph.node.base import Node
from langflow.graph.node.types import (
FileToolNode,
LLMNode,
ToolkitNode,
from langflow.graph.graph.constants import VERTEX_TYPE_MAP
from langflow.graph.vertex.base import Vertex
from langflow.graph.vertex.types import (
FileToolVertex,
LLMVertex,
ToolkitVertex,
)
from langflow.interface.tools.constants import FILE_TOOLS
from langflow.utils import payload
@ -26,7 +26,7 @@ class Graph:
def _build_graph(self) -> None:
"""Builds the graph from the nodes and edges."""
self.nodes = self._build_nodes()
self.nodes = self._build_vertices()
self.edges = self._build_edges()
for edge in self.edges:
edge.source.add_edge(edge)
@ -43,12 +43,12 @@ class Graph:
llm_node = None
for node in self.nodes:
node._build_params()
if isinstance(node, LLMNode):
if isinstance(node, LLMVertex):
llm_node = node
if llm_node:
for node in self.nodes:
if isinstance(node, ToolkitNode):
if isinstance(node, ToolkitVertex):
node.params["llm"] = llm_node
def _remove_invalid_nodes(self) -> None:
@ -60,23 +60,23 @@ class Graph:
or (len(self.nodes) == 1 and len(self.edges) == 0)
]
def _validate_node(self, node: Node) -> bool:
def _validate_node(self, node: Vertex) -> bool:
"""Validates a node."""
# All nodes that do not have edges are invalid
return len(node.edges) > 0
def get_node(self, node_id: str) -> Union[None, Node]:
def get_node(self, node_id: str) -> Union[None, Vertex]:
"""Returns a node by id."""
return next((node for node in self.nodes if node.id == node_id), None)
def get_nodes_with_target(self, node: Node) -> List[Node]:
def get_nodes_with_target(self, node: Vertex) -> List[Vertex]:
"""Returns the nodes connected to a node."""
connected_nodes: List[Node] = [
connected_nodes: List[Vertex] = [
edge.source for edge in self.edges if edge.target == node
]
return connected_nodes
def build(self) -> List[Node]:
def build(self) -> List[Vertex]:
"""Builds the graph."""
# Get root node
root_node = payload.get_root_node(self)
@ -84,9 +84,9 @@ class Graph:
raise ValueError("No root node found")
return root_node.build()
def get_node_neighbors(self, node: Node) -> Dict[Node, int]:
def get_node_neighbors(self, node: Vertex) -> Dict[Vertex, int]:
"""Returns the neighbors of a node."""
neighbors: Dict[Node, int] = {}
neighbors: Dict[Vertex, int] = {}
for edge in self.edges:
if edge.source == node:
neighbor = edge.target
@ -117,28 +117,30 @@ class Graph:
edges.append(Edge(source, target))
return edges
def _get_node_class(self, node_type: str, node_lc_type: str) -> Type[Node]:
def _get_vertex_class(self, node_type: str, node_lc_type: str) -> Type[Vertex]:
"""Returns the node class based on the node type."""
if node_type in FILE_TOOLS:
return FileToolNode
if node_type in NODE_TYPE_MAP:
return NODE_TYPE_MAP[node_type]
return NODE_TYPE_MAP[node_lc_type] if node_lc_type in NODE_TYPE_MAP else Node
return FileToolVertex
if node_type in VERTEX_TYPE_MAP:
return VERTEX_TYPE_MAP[node_type]
return (
VERTEX_TYPE_MAP[node_lc_type] if node_lc_type in VERTEX_TYPE_MAP else Vertex
)
def _build_nodes(self) -> List[Node]:
"""Builds the nodes of the graph."""
nodes: List[Node] = []
def _build_vertices(self) -> List[Vertex]:
"""Builds the vertices of the graph."""
nodes: List[Vertex] = []
for node in self._nodes:
node_data = node["data"]
node_type: str = node_data["type"] # type: ignore
node_lc_type: str = node_data["node"]["template"]["_type"] # type: ignore
NodeClass = self._get_node_class(node_type, node_lc_type)
nodes.append(NodeClass(node))
VertexClass = self._get_vertex_class(node_type, node_lc_type)
nodes.append(VertexClass(node))
return nodes
def get_children_by_node_type(self, node: Node, node_type: str) -> List[Node]:
def get_children_by_node_type(self, node: Vertex, node_type: str) -> List[Vertex]:
"""Returns the children of a node based on the node type."""
children = []
node_types = [node.data["type"]]

View file

@ -1,17 +1,17 @@
from langflow.graph.node.base import Node
from langflow.graph.node.types import (
AgentNode,
ChainNode,
DocumentLoaderNode,
EmbeddingNode,
LLMNode,
MemoryNode,
PromptNode,
TextSplitterNode,
ToolNode,
ToolkitNode,
VectorStoreNode,
WrapperNode,
from langflow.graph.vertex.base import Vertex
from langflow.graph.vertex.types import (
AgentVertex,
ChainVertex,
DocumentLoaderVertex,
EmbeddingVertex,
LLMVertex,
MemoryVertex,
PromptVertex,
TextSplitterVertex,
ToolVertex,
ToolkitVertex,
VectorStoreVertex,
WrapperVertex,
)
from langflow.interface.agents.base import agent_creator
from langflow.interface.chains.base import chain_creator
@ -33,17 +33,17 @@ from typing import Dict, Type
DIRECT_TYPES = ["str", "bool", "code", "int", "float", "Any", "prompt"]
NODE_TYPE_MAP: Dict[str, Type[Node]] = {
**{t: PromptNode for t in prompt_creator.to_list()},
**{t: AgentNode for t in agent_creator.to_list()},
**{t: ChainNode for t in chain_creator.to_list()},
**{t: ToolNode for t in tool_creator.to_list()},
**{t: ToolkitNode for t in toolkits_creator.to_list()},
**{t: WrapperNode for t in wrapper_creator.to_list()},
**{t: LLMNode for t in llm_creator.to_list()},
**{t: MemoryNode for t in memory_creator.to_list()},
**{t: EmbeddingNode for t in embedding_creator.to_list()},
**{t: VectorStoreNode for t in vectorstore_creator.to_list()},
**{t: DocumentLoaderNode for t in documentloader_creator.to_list()},
**{t: TextSplitterNode for t in textsplitter_creator.to_list()},
VERTEX_TYPE_MAP: Dict[str, Type[Vertex]] = {
**{t: PromptVertex for t in prompt_creator.to_list()},
**{t: AgentVertex for t in agent_creator.to_list()},
**{t: ChainVertex for t in chain_creator.to_list()},
**{t: ToolVertex for t in tool_creator.to_list()},
**{t: ToolkitVertex for t in toolkits_creator.to_list()},
**{t: WrapperVertex for t in wrapper_creator.to_list()},
**{t: LLMVertex for t in llm_creator.to_list()},
**{t: MemoryVertex for t in memory_creator.to_list()},
**{t: EmbeddingVertex for t in embedding_creator.to_list()},
**{t: VectorStoreVertex for t in vectorstore_creator.to_list()},
**{t: DocumentLoaderVertex for t in documentloader_creator.to_list()},
**{t: TextSplitterVertex for t in textsplitter_creator.to_list()},
}

View file

@ -0,0 +1,229 @@
from langflow.cache import base as cache_utils
from langflow.graph.vertex.constants import DIRECT_TYPES
from langflow.interface import loading
from langflow.interface.listing import ALL_TYPES_DICT
from langflow.utils.logger import logger
from langflow.utils.util import sync_to_async
import contextlib
import inspect
import types
import warnings
from typing import Any, Dict, List, Optional
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from langflow.graph.edge.base import Edge
class Vertex:
def __init__(self, data: Dict, base_type: Optional[str] = None) -> None:
self.id: str = data["id"]
self._data = data
self.edges: List["Edge"] = []
self.base_type: Optional[str] = base_type
self._parse_data()
self._built_object = None
self._built = False
def _parse_data(self) -> None:
self.data = self._data["data"]
self.output = self.data["node"]["base_classes"]
template_dicts = {
key: value
for key, value in self.data["node"]["template"].items()
if isinstance(value, dict)
}
self.required_inputs = [
template_dicts[key]["type"]
for key, value in template_dicts.items()
if value["required"]
]
self.optional_inputs = [
template_dicts[key]["type"]
for key, value in template_dicts.items()
if not value["required"]
]
template_dict = self.data["node"]["template"]
self.vertex_type = (
self.data["type"] if "Tool" not in self.output else template_dict["_type"]
)
if self.base_type is None:
for base_type, value in ALL_TYPES_DICT.items():
if self.vertex_type in value:
self.base_type = base_type
break
def _build_params(self):
# Some params are required, some are optional
# but most importantly, some params are python base classes
# like str and others are LangChain objects like LLMChain, BasePromptTemplate
# so we need to be able to distinguish between the two
# The dicts with "type" == "str" are the ones that are python base classes
# and most likely have a "value" key
# So for each key besides "_type" in the template dict, we have a dict
# with a "type" key. If the type is not "str", then we need to get the
# edge that connects to that node and get the Node with the required data
# and use that as the value for the param
# If the type is "str", then we need to get the value of the "value" key
# and use that as the value for the param
template_dict = {
key: value
for key, value in self.data["node"]["template"].items()
if isinstance(value, dict)
}
params = {}
for key, value in template_dict.items():
if key == "_type":
continue
# If the type is not transformable to a python base class
# then we need to get the edge that connects to this node
if value.get("type") == "file":
# Load the type in value.get('suffixes') using
# what is inside value.get('content')
# value.get('value') is the file name
file_name = value.get("value")
content = value.get("content")
type_to_load = value.get("suffixes")
file_path = cache_utils.save_binary_file(
content=content, file_name=file_name, accepted_types=type_to_load
)
params[key] = file_path
elif value.get("type") not in DIRECT_TYPES:
# Get the edge that connects to this node
edges = [
edge
for edge in self.edges
if edge.target == self and edge.matched_type in value["type"]
]
# Get the output of the node that the edge connects to
# if the value['list'] is True, then there will be more
# than one time setting to params[key]
# so we need to append to a list if it exists
# or create a new list if it doesn't
if value["required"] and not edges:
# If a required parameter is not found, raise an error
raise ValueError(
f"Required input {key} for module {self.vertex_type} not found"
)
elif value["list"]:
# If this is a list parameter, append all sources to a list
params[key] = [edge.source for edge in edges]
elif edges:
# If a single parameter is found, use its source
params[key] = edges[0].source
elif value["required"] or value.get("value"):
# If value does not have value this still passes
# but then gives a keyError
# so we need to check if value has value
new_value = value.get("value")
if new_value is None:
warnings.warn(f"Value for {key} in {self.vertex_type} is None. ")
if value.get("type") == "int":
with contextlib.suppress(TypeError, ValueError):
new_value = int(new_value) # type: ignore
params[key] = new_value
# Add _type to params
self.params = params
def _build(self):
# The params dict is used to build the module
# it contains values and keys that point to nodes which
# have their own params dict
# When build is called, we iterate through the params dict
# and if the value is a node, we call build on that node
# and use the output of that build as the value for the param
# if the value is not a node, then we use the value as the param
# and continue
# Another aspect is that the node_type is the class that we need to import
# and instantiate with these built params
logger.debug(f"Building {self.vertex_type}")
# Build each node in the params dict
for key, value in self.params.copy().items():
# Check if Node or list of Nodes and not self
# to avoid recursion
if isinstance(value, Vertex):
if value == self:
del self.params[key]
continue
result = value.build()
# If the key is "func", then we need to use the run method
if key == "func":
if not isinstance(result, types.FunctionType):
# func can be
# PythonFunction(code='\ndef upper_case(text: str) -> str:\n return text.upper()\n')
# so we need to check if there is an attribute called run
if hasattr(result, "run"):
result = result.run # type: ignore
elif hasattr(result, "get_function"):
result = result.get_function() # type: ignore
elif inspect.iscoroutinefunction(result):
self.params["coroutine"] = result
else:
# turn result which is a function into a coroutine
# so that it can be awaited
self.params["coroutine"] = sync_to_async(result)
self.params[key] = result
elif isinstance(value, list) and all(
isinstance(node, Vertex) for node in value
):
self.params[key] = []
for node in value:
built = node.build()
if isinstance(built, list):
self.params[key].extend(built)
else:
self.params[key].append(built)
# Get the class from LANGCHAIN_TYPES_DICT
# and instantiate it with the params
# and return the instance
try:
self._built_object = loading.instantiate_class(
node_type=self.vertex_type,
base_type=self.base_type,
params=self.params,
)
except Exception as exc:
raise ValueError(
f"Error building node {self.vertex_type}: {str(exc)}"
) from exc
if self._built_object is None:
raise ValueError(f"Node type {self.vertex_type} not found")
self._built = True
def build(self, force: bool = False) -> Any:
if not self._built or force:
self._build()
return self._built_object
def add_edge(self, edge: "Edge") -> None:
self.edges.append(edge)
def __repr__(self) -> str:
return f"Node(id={self.id}, data={self.data})"
def __eq__(self, __o: object) -> bool:
return self.id == __o.id if isinstance(__o, Vertex) else False
def __hash__(self) -> int:
return id(self)
def _built_object_repr(self):
return repr(self._built_object)

View file

@ -0,0 +1 @@
DIRECT_TYPES = ["str", "bool", "code", "int", "float", "Any", "prompt"]

View file

@ -0,0 +1,198 @@
from typing import Any, Dict, List, Optional, Union
from langflow.graph.vertex.base import Vertex
from langflow.graph.utils import extract_input_variables_from_prompt
class AgentVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="agents")
self.tools: List[ToolVertex] = []
self.chains: List[ChainVertex] = []
def _set_tools_and_chains(self) -> None:
for edge in self.edges:
source_node = edge.source
if isinstance(source_node, ToolVertex):
self.tools.append(source_node)
elif isinstance(source_node, ChainVertex):
self.chains.append(source_node)
def build(self, force: bool = False) -> Any:
if not self._built or force:
self._set_tools_and_chains()
# First, build the tools
for tool_node in self.tools:
tool_node.build()
# Next, build the chains and the rest
for chain_node in self.chains:
chain_node.build(tools=self.tools)
self._build()
#! Cannot deepcopy VectorStore, VectorStoreRouter, or SQL agents
if self.vertex_type in [
"VectorStoreAgent",
"VectorStoreRouterAgent",
"SQLAgent",
]:
return self._built_object
return self._built_object
class ToolVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="tools")
class PromptVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="prompts")
def build(
self,
force: bool = False,
tools: Optional[Union[List[Vertex], List[ToolVertex]]] = None,
) -> Any:
if not self._built or force:
if (
"input_variables" not in self.params
or self.params["input_variables"] is None
):
self.params["input_variables"] = []
# Check if it is a ZeroShotPrompt and needs a tool
if "ShotPrompt" in self.vertex_type:
tools = (
[tool_node.build() for tool_node in tools]
if tools is not None
else []
)
self.params["tools"] = tools
prompt_params = [
key
for key, value in self.params.items()
if isinstance(value, str) and key != "format_instructions"
]
else:
prompt_params = ["template"]
for param in prompt_params:
prompt_text = self.params[param]
variables = extract_input_variables_from_prompt(prompt_text)
self.params["input_variables"].extend(variables)
self.params["input_variables"] = list(set(self.params["input_variables"]))
self._build()
return self._built_object
class ChainVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="chains")
def build(
self,
force: bool = False,
tools: Optional[Union[List[Vertex], List[ToolVertex]]] = None,
) -> Any:
if not self._built or force:
# Check if the chain requires a PromptNode
for key, value in self.params.items():
if isinstance(value, PromptVertex):
# Build the PromptNode, passing the tools if available
self.params[key] = value.build(tools=tools, force=force)
self._build()
#! Cannot deepcopy SQLDatabaseChain
if self.vertex_type in ["SQLDatabaseChain"]:
return self._built_object
return self._built_object
class LLMVertex(Vertex):
built_node_type = None
class_built_object = None
def __init__(self, data: Dict):
super().__init__(data, base_type="llms")
def build(self, force: bool = False) -> Any:
# LLM is different because some models might take up too much memory
# or time to load. So we only load them when we need them.ß
if self.vertex_type == self.built_node_type:
return self.class_built_object
if not self._built or force:
self._build()
self.built_node_type = self.vertex_type
self.class_built_object = self._built_object
# Avoid deepcopying the LLM
# that are loaded from a file
return self._built_object
class ToolkitVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="toolkits")
class FileToolVertex(ToolVertex):
def __init__(self, data: Dict):
super().__init__(data)
class WrapperVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="wrappers")
def build(self, force: bool = False) -> Any:
if not self._built or force:
if "headers" in self.params:
self.params["headers"] = eval(self.params["headers"])
self._build()
return self._built_object
class DocumentLoaderVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="documentloaders")
def _built_object_repr(self):
# This built_object is a list of documents. Maybe we should
# show how many documents are in the list?
if self._built_object:
return f"""{self.vertex_type}({len(self._built_object)} documents)
Documents: {self._built_object[:3]}..."""
return f"{self.vertex_type}()"
class EmbeddingVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="embeddings")
class VectorStoreVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="vectorstores")
def _built_object_repr(self):
return "Vector stores can take time to build. It will build on the first query."
class MemoryVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="memory")
class TextSplitterVertex(Vertex):
def __init__(self, data: Dict):
super().__init__(data, base_type="textsplitters")
def _built_object_repr(self):
# This built_object is a list of documents. Maybe we should
# show how many documents are in the list?
if self._built_object:
return f"""{self.vertex_type}({len(self._built_object)} documents)
\nDocuments: {self._built_object[:3]}..."""
return f"{self.vertex_type}()"

View file

@ -11,12 +11,14 @@ from langchain import (
text_splitter,
)
from langchain.agents import agent_toolkits
from langchain.chat_models import ChatAnthropic
from langchain.chat_models import ChatOpenAI
from langflow.interface.importing.utils import import_class
## LLMs
llm_type_to_cls_dict = llms.type_to_cls_dict
llm_type_to_cls_dict["anthropic-chat"] = ChatAnthropic # type: ignore
llm_type_to_cls_dict["openai-chat"] = ChatOpenAI # type: ignore
## Chains

View file

@ -9,6 +9,7 @@ from langchain.base_language import BaseLanguageModel
from langchain.chains.base import Chain
from langchain.chat_models.base import BaseChatModel
from langchain.tools import BaseTool
from langflow.utils import validate
def import_module(module_path: str) -> Any:
@ -147,3 +148,10 @@ def import_utility(utility: str) -> Any:
if utility == "SQLDatabase":
return import_class(f"langchain.sql_database.{utility}")
return import_class(f"langchain.utilities.{utility}")
def get_function(code):
"""Get the function"""
function_name = validate.extract_function_name(code)
return validate.create_function(code, function_name)

View file

@ -21,12 +21,12 @@ from langchain.llms.loading import load_llm_from_config
from pydantic import ValidationError
from langflow.interface.agents.custom import CUSTOM_AGENTS
from langflow.interface.importing.utils import import_by_type
from langflow.interface.importing.utils import get_function, import_by_type
from langflow.interface.run import fix_memory_inputs
from langflow.interface.toolkits.base import toolkits_creator
from langflow.interface.types import get_type_list
from langflow.interface.utils import load_file_into_dict
from langflow.utils import util, validate
from langflow.utils import util
def instantiate_class(node_type: str, base_type: str, params: Dict) -> Any:
@ -100,11 +100,9 @@ def instantiate_tool(node_type, class_object, params):
if node_type == "JsonSpec":
params["dict_"] = load_file_into_dict(params.pop("path"))
return class_object(**params)
elif node_type == "PythonFunction":
function_string = params["code"]
if isinstance(function_string, str):
return validate.eval_function(function_string)
raise ValueError("Function should be a string")
elif node_type == "PythonFunctionTool":
params["func"] = get_function(params.get("code"))
return class_object(**params)
elif node_type.lower() == "tool":
return class_object(**params)
return class_object(**params)

View file

@ -71,7 +71,8 @@ class ToolCreator(LangChainTypeCreator):
for tool, tool_fcn in ALL_TOOLS_NAMES.items():
tool_params = get_tool_params(tool_fcn)
tool_name = tool_params.get("name", tool)
tool_name = tool_params.get("name") or tool
if tool_name in settings.tools or settings.dev:
if tool_name == "JsonSpec":

View file

@ -9,10 +9,10 @@ from langchain.agents.load_tools import (
from langchain.tools.json.tool import JsonSpec
from langflow.interface.importing.utils import import_class
from langflow.interface.tools.custom import PythonFunction
from langflow.interface.tools.custom import PythonFunctionTool
FILE_TOOLS = {"JsonSpec": JsonSpec}
CUSTOM_TOOLS = {"Tool": Tool, "PythonFunction": PythonFunction}
CUSTOM_TOOLS = {"Tool": Tool, "PythonFunctionTool": PythonFunctionTool}
OTHER_TOOLS = {tool: import_class(f"langchain.tools.{tool}") for tool in tools.__all__}

View file

@ -1,13 +1,14 @@
from typing import Callable, Optional
from typing import Optional
from langflow.interface.importing.utils import get_function
from pydantic import BaseModel, validator
from langflow.utils import validate
from langchain.agents.tools import Tool
class Function(BaseModel):
code: str
function: Optional[Callable] = None
imports: Optional[str] = None
# Eval code and store the function
@ -24,14 +25,17 @@ class Function(BaseModel):
return v
def get_function(self):
"""Get the function"""
function_name = validate.extract_function_name(self.code)
return validate.create_function(self.code, function_name)
class PythonFunction(Function):
class PythonFunctionTool(Function, Tool):
"""Python function"""
name: str = "Custom Tool"
description: str
code: str
def ___init__(self, name: str, description: str, code: str):
self.name = name
self.description = description
self.code = code
self.func = get_function(self.code)
super().__init__(name=name, description=description, func=self.func)

View file

@ -125,6 +125,9 @@ class FrontendNode(BaseModel):
elif name == "ChatOpenAI" and key == "model_name":
field.options = constants.CHAT_OPENAI_MODELS
field.is_list = True
elif (name == "Anthropic" or name == "ChatAnthropic") and key == "model_name":
field.options = constants.ANTHROPIC_MODELS
field.is_list = True
if "api_key" in key and "OpenAI" in str(name):
field.display_name = "OpenAI API Key"
field.required = False

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