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ui/gradioui.py
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#!/usr/bin/env python
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# coding=utf-8
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# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import mimetypes
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import os
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import re
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import shutil
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from typing import Optional
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from smolagents.agent_types import AgentAudio, AgentImage, AgentText, handle_agent_output_types
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from smolagents.agents import ActionStep, MultiStepAgent
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from smolagents.memory import MemoryStep
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from smolagents.utils import _is_package_available
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agent_header = """
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# Content Agent
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Use content agent to determine whether language is polite by passing it text strings.
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* Checks text and classify whether or not it is polite, somewhat polite, neutral, and impolite.
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* Uses Intel's Polite Guard NLP library
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"""
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# * Returns the current time if provided with a timezone.
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section_header = "Section Overview"
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agent_footer = """
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Thanks for trying it out!
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"""
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def get_examples():
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example_root = os.path.join(os.path.dirname(__file__), "examples")
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# Get list of all example text paths
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example_files = [os.path.join(example_root, _) for _ in os.listdir(example_root) if _.endswith("txt")]
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# Read the content of each file (assuming they're text-based PDFs or plain text files)
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examples = []
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for file_path in example_files:
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example_content = ""
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with open(file_path, "r", encoding="utf-8", errors="ignore") as f:
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example_content = f.read()
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examples.append(example_content) # Read the content and append it to the list
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return examples
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def pull_messages_from_step(
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step_log: MemoryStep,
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):
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"""Extract ChatMessage objects from agent steps with proper nesting"""
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import gradio as gr
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if isinstance(step_log, ActionStep):
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# Output the step number
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step_number = f"Step {step_log.step_number}" if step_log.step_number is not None else ""
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yield gr.ChatMessage(role="assistant", content=f"**{step_number}**")
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# First yield the thought/reasoning from the LLM
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if hasattr(step_log, "model_output") and step_log.model_output is not None:
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# Clean up the LLM output
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model_output = step_log.model_output.strip()
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# Remove any trailing <end_code> and extra backticks, handling multiple possible formats
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model_output = re.sub(r"```\s*<end_code>", "```", model_output) # handles ```<end_code>
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model_output = re.sub(r"<end_code>\s*```", "```", model_output) # handles <end_code>```
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model_output = re.sub(r"```\s*\n\s*<end_code>", "```", model_output) # handles ```\n<end_code>
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model_output = model_output.strip()
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yield gr.ChatMessage(role="assistant", content=model_output)
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# For tool calls, create a parent message
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if hasattr(step_log, "tool_calls") and step_log.tool_calls is not None:
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first_tool_call = step_log.tool_calls[0]
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used_code = first_tool_call.name == "python_interpreter"
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parent_id = f"call_{len(step_log.tool_calls)}"
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# Tool call becomes the parent message with timing info
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# First we will handle arguments based on type
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args = first_tool_call.arguments
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if isinstance(args, dict):
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content = str(args.get("answer", str(args)))
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else:
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content = str(args).strip()
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if used_code:
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# Clean up the content by removing any end code tags
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content = re.sub(r"```.*?\n", "", content) # Remove existing code blocks
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content = re.sub(r"\s*<end_code>\s*", "", content) # Remove end_code tags
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content = content.strip()
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if not content.startswith("```python"):
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content = f"```python\n{content}\n```"
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parent_message_tool = gr.ChatMessage(
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role="assistant",
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content=content,
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metadata={
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"title": f"🛠️ Used tool {first_tool_call.name}",
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"id": parent_id,
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"status": "pending",
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},
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)
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yield parent_message_tool
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# Nesting execution logs under the tool call if they exist
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if hasattr(step_log, "observations") and (
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step_log.observations is not None and step_log.observations.strip()
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): # Only yield execution logs if there's actual content
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log_content = step_log.observations.strip()
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if log_content:
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log_content = re.sub(r"^Execution logs:\s*", "", log_content)
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yield gr.ChatMessage(
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role="assistant",
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content=f"{log_content}",
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metadata={"title": "📝 Execution Logs", "parent_id": parent_id, "status": "done"},
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)
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# Nesting any errors under the tool call
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if hasattr(step_log, "error") and step_log.error is not None:
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yield gr.ChatMessage(
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role="assistant",
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content=str(step_log.error),
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metadata={"title": "💥 Error", "parent_id": parent_id, "status": "done"},
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)
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# Update parent message metadata to done status without yielding a new message
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parent_message_tool.metadata["status"] = "done"
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# Handle standalone errors but not from tool calls
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elif hasattr(step_log, "error") and step_log.error is not None:
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yield gr.ChatMessage(role="assistant", content=str(step_log.error), metadata={"title": "💥 Error"})
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# Calculate duration and token information
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step_footnote = f"{step_number}"
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if hasattr(step_log, "input_token_count") and hasattr(step_log, "output_token_count"):
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token_str = (
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f" | Input-tokens:{step_log.input_token_count:,} | Output-tokens:{step_log.output_token_count:,}"
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)
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step_footnote += token_str
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if hasattr(step_log, "duration"):
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step_duration = f" | Duration: {round(float(step_log.duration), 2)}" if step_log.duration else None
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step_footnote += step_duration
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step_footnote = f"""<span style="color: #bbbbc2; font-size: 12px;">{step_footnote}</span> """
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yield gr.ChatMessage(role="assistant", content=f"{step_footnote}")
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yield gr.ChatMessage(role="assistant", content="-----")
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def stream_to_gradio(
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agent,
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task: str,
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reset_agent_memory: bool = False,
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additional_args: Optional[dict] = None,
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):
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"""Runs an agent with the given task and streams the messages from the agent as gradio ChatMessages."""
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if not _is_package_available("gradio"):
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raise ModuleNotFoundError(
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"Please install 'gradio' extra to use the GradioUI: `pip install 'smolagents[gradio]'`"
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)
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import gradio as gr
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total_input_tokens = 0
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total_output_tokens = 0
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for step_log in agent.run(task, stream=True, reset=reset_agent_memory, additional_args=additional_args):
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# Track tokens if model provides them
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if hasattr(agent.model, "last_input_token_count"):
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total_input_tokens += agent.model.last_input_token_count
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total_output_tokens += agent.model.last_output_token_count
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if isinstance(step_log, ActionStep):
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step_log.input_token_count = agent.model.last_input_token_count
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step_log.output_token_count = agent.model.last_output_token_count
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for message in pull_messages_from_step(
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step_log,
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):
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yield message
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final_answer = step_log # Last log is the run's final_answer
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final_answer = handle_agent_output_types(final_answer)
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if isinstance(final_answer, AgentText):
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yield gr.ChatMessage(
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role="assistant",
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content=f"**Final answer:**\n{final_answer.to_string()}\n",
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)
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elif isinstance(final_answer, AgentImage):
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yield gr.ChatMessage(
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role="assistant",
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content={"path": final_answer.to_string(), "mime_type": "image/png"},
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)
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elif isinstance(final_answer, AgentAudio):
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yield gr.ChatMessage(
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role="assistant",
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content={"path": final_answer.to_string(), "mime_type": "audio/wav"},
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)
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else:
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yield gr.ChatMessage(role="assistant", content=f"**Final answer:** {str(final_answer)}")
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class GradioUI:
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"""A one-line interface to launch your agent in Gradio"""
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def __init__(self, agent: MultiStepAgent, file_upload_folder: str | None = None):
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if not _is_package_available("gradio"):
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raise ModuleNotFoundError(
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"Please install 'gradio' extra to use the GradioUI: `pip install 'smolagents[gradio]'`"
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)
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self.agent = agent
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self.file_upload_folder = file_upload_folder
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if self.file_upload_folder is not None:
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if not os.path.exists(file_upload_folder):
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os.mkdir(file_upload_folder)
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def interact_with_agent(self, prompt, messages):
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import gradio as gr
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messages.append(gr.ChatMessage(role="user", content=prompt))
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yield messages
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for msg in stream_to_gradio(self.agent, task=prompt, reset_agent_memory=False):
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messages.append(msg)
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yield messages
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yield messages
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def upload_file(
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self,
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file,
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file_uploads_log,
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allowed_file_types=[
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"application/pdf",
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"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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"text/plain",
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],
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):
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"""
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Handle file uploads, default allowed types are .pdf, .docx, and .txt
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"""
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import gradio as gr
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if file is None:
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return gr.Textbox("No file uploaded", visible=True), file_uploads_log
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try:
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mime_type, _ = mimetypes.guess_type(file.name)
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except Exception as e:
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return gr.Textbox(f"Error: {e}", visible=True), file_uploads_log
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if mime_type not in allowed_file_types:
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return gr.Textbox("File type disallowed", visible=True), file_uploads_log
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# Sanitize file name
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original_name = os.path.basename(file.name)
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sanitized_name = re.sub(
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r"[^\w\-.]", "_", original_name
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) # Replace any non-alphanumeric, non-dash, or non-dot characters with underscores
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type_to_ext = {}
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for ext, t in mimetypes.types_map.items():
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if t not in type_to_ext:
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type_to_ext[t] = ext
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# Ensure the extension correlates to the mime type
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sanitized_name = sanitized_name.split(".")[:-1]
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sanitized_name.append("" + type_to_ext[mime_type])
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sanitized_name = "".join(sanitized_name)
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# Save the uploaded file to the specified folder
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file_path = os.path.join(self.file_upload_folder, os.path.basename(sanitized_name))
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shutil.copy(file.name, file_path)
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return gr.Textbox(f"File uploaded: {file_path}", visible=True), file_uploads_log + [file_path]
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def log_user_message(self, text_input, file_uploads_log):
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return (
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text_input
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+ (
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f"\nYou have been provided with these files, which might be helpful or not: {file_uploads_log}"
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if len(file_uploads_log) > 0
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else ""
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),
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"",
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)
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def launch(self, **kwargs):
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import gradio as gr
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# Function for handling input change after selecting an example
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def on_example_click(example_text):
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return example_text + " yay!!"
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with gr.Blocks(
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title="Content Classifier",
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fill_height=True,
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css="""
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.loading-message {
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animation: pulse 2s cubic-bezier(.4,0,.6,1) infinite;
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}
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@keyframes pulse {
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0%, 100% { opacity: 1; }
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50% { opacity: 0.5; }
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}
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"""
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) as demo:
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gr.Markdown(agent_header)
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stored_messages = gr.State([])
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file_uploads_log = gr.State([])
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chatbot = gr.Chatbot(
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label="Agent",
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type="messages",
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avatar_images=(
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None,
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"https://huggingface.co/datasets/agents-course/course-images/resolve/main/en/communication/Alfred.png",
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),
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resizeable=True,
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scale=1,
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)
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# If an upload folder is provided, enable the upload feature
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if self.file_upload_folder is not None:
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upload_file = gr.File(label="Upload a file")
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upload_status = gr.Textbox(label="Upload Status", interactive=False, visible=False)
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upload_file.change(
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self.upload_file,
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[upload_file, file_uploads_log],
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[upload_status, file_uploads_log],
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)
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text_input = gr.Textbox(lines=1, label="Chat Message")
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text_input.submit(
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self.log_user_message,
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[text_input, file_uploads_log],
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# outputs
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[stored_messages, text_input],
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).then(self.interact_with_agent, [stored_messages, chatbot], [chatbot])
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gr.Examples(
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examples=get_examples(),
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inputs=text_input,
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label="Example Input Text"
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)
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# Example texts (you can replace these with your own examples)
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example_texts = ["Example 1: Hello!", "Example 2: How are you?", "Example 3: What's your name?"]
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# Set up the examples, with the on_example_click to update text_input
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gr.Examples(
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examples=example_texts,
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inputs=text_input,
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label="Demoing Text",
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fn=on_example_click # Update text_input with the selected example
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)
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| 377 |
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| 378 |
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gr.Markdown( agent_footer )
|
| 379 |
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|
| 380 |
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demo.launch(debug=True, share=True, **kwargs)
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| 381 |
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| 382 |
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| 383 |
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__all__ = ["stream_to_gradio", "GradioUI"]
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