ref: standardize imports to use full qualified names (#7575)

* Remove models from __init__.py to avoid circular dependency

* [autofix.ci] apply automated fixes

* [autofix.ci] apply automated fixes (attempt 2/3)

* add back init to avoid backwards-compat issues

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* ref: standardize imports to use full qualified names

Replaces uses of the "public" APIs to use full qualified
names to reduce instances of circular dependencies

* [autofix.ci] apply automated fixes

* [autofix.ci] apply automated fixes (attempt 2/3)

* Fix path

* update starters"
"

* remove old files'

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* Fix some imports

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* ruff

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* starter projects?

* starter projects?

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* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/backend/tests/unit/base/tools/test_component_toolkit.py

@@ -6,7 +6,7 @@ from langflow.components.input_output.chat_output import ChatOutput
 from langflow.components.langchain_utilities import ToolCallingAgentComponent
 from langflow.components.languagemodels import OpenAIModelComponent
 from langflow.components.tools.calculator import CalculatorToolComponent
-from langflow.graph import Graph
+from langflow.graph.graph.base import Graph
 from langflow.schema.data import Data
 from pydantic import BaseModel
 

src/backend/tests/unit/components/languagemodels/test_deepseek.py

@@ -2,7 +2,7 @@ from unittest.mock import MagicMock
 
 import pytest
 from langflow.components.languagemodels import DeepSeekModelComponent
-from langflow.custom import Component
+from langflow.custom.custom_component.component import Component
 from langflow.custom.utils import build_custom_component_template
 
 

src/backend/tests/unit/components/languagemodels/test_xai.py

@@ -2,9 +2,9 @@ from unittest.mock import MagicMock, patch
 
 import pytest
 from langflow.components.languagemodels import XAIModelComponent
-from langflow.custom import Component
+from langflow.custom.custom_component.component import Component
 from langflow.custom.utils import build_custom_component_template
-from langflow.inputs import (
+from langflow.inputs.inputs import (
     BoolInput,
     DictInput,
     DropdownInput,

src/backend/tests/unit/components/models/test_language_model_component.py

@@ -3,7 +3,7 @@ from unittest.mock import MagicMock, patch
 import pytest
 from langflow.base.models.anthropic_constants import ANTHROPIC_MODELS
 from langflow.base.models.openai_constants import OPENAI_MODEL_NAMES
-from langflow.components.models import LanguageModelComponent
+from langflow.components.models.language_model import LanguageModelComponent
 
 from tests.base import ComponentTestBaseWithClient
 

src/backend/tests/unit/graph/edge/test_edge_base.py

@@ -4,7 +4,7 @@ import pytest
 from langflow.components.input_output import ChatInput, ChatOutput
 from langflow.components.languagemodels import OpenAIModelComponent
 from langflow.components.prompts import PromptComponent
-from langflow.graph import Graph
+from langflow.graph.graph.base import Graph
 
 
 def test_edge_raises_error_on_invalid_target_handle():

src/backend/tests/unit/graph/graph/test_cycles.py

@@ -6,8 +6,8 @@ from langflow.components.input_output.text import TextInputComponent
 from langflow.components.languagemodels import OpenAIModelComponent
 from langflow.components.logic.conditional_router import ConditionalRouterComponent
 from langflow.components.prompts import PromptComponent
-from langflow.custom import Component
-from langflow.graph import Graph
+from langflow.custom.custom_component.component import Component
+from langflow.graph.graph.base import Graph
 from langflow.graph.graph.utils import find_cycle_vertices
 from langflow.io import MessageTextInput, Output
 from langflow.schema.message import Message

src/backend/tests/unit/graph/graph/test_graph_state_model.py

@@ -6,7 +6,7 @@ from langflow.components.input_output import ChatInput, ChatOutput
 from langflow.components.languagemodels import OpenAIModelComponent
 from langflow.components.processing.converter import TypeConverterComponent
 from langflow.components.prompts import PromptComponent
-from langflow.graph import Graph
+from langflow.graph.graph.base import Graph
 from langflow.graph.graph.constants import Finish
 from langflow.graph.graph.state_model import create_state_model_from_graph
 

src/backend/tests/unit/initial_setup/starter_projects/test_memory_chatbot.py

@@ -8,7 +8,7 @@ from langflow.components.input_output import ChatInput, ChatOutput
 from langflow.components.languagemodels import OpenAIModelComponent
 from langflow.components.processing.converter import TypeConverterComponent
 from langflow.components.prompts import PromptComponent
-from langflow.graph import Graph
+from langflow.graph.graph.base import Graph
 from langflow.graph.graph.constants import Finish
 
 if TYPE_CHECKING:

src/backend/tests/unit/initial_setup/starter_projects/test_vector_store_rag.py

@@ -11,7 +11,7 @@ from langflow.components.processing import ParseDataComponent
 from langflow.components.processing.split_text import SplitTextComponent
 from langflow.components.prompts import PromptComponent
 from langflow.components.vectorstores import AstraDBVectorStoreComponent
-from langflow.graph import Graph
+from langflow.graph.graph.base import Graph
 from langflow.graph.graph.constants import Finish
 from langflow.schema import Data
 from langflow.schema.dataframe import DataFrame