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Python

#!/usr/bin/env python3
""" Ref: https://github.com/THUDM/ChatGLM2-6B/blob/main/web_demo.py """
from transformers import AutoTokenizer
import gradio as gr
import mdtex2html
from transformers import AutoModelForCausalLM, AutoTokenizer
from transformers.generation import GenerationConfig
from argparse import ArgumentParser
import sys
print("Call args:" + str(sys.argv))
parser = ArgumentParser()
parser.add_argument("--share", action="store_true", default=False)
parser.add_argument("--inbrowser", action="store_true", default=False)
parser.add_argument("--server_port", type=int, default=80)
parser.add_argument("--server_name", type=str, default="0.0.0.0")
parser.add_argument("--exit", action="store_true", default=False)
parser.add_argument("--model_revision", type=str, default="")
args = parser.parse_args(sys.argv[1:])
print("Args:" + str(args))
tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen-7B-Chat", trust_remote_code=True, resume_download=True)
model = AutoModelForCausalLM.from_pretrained(
"Qwen/Qwen-7B-Chat",
device_map="auto",
trust_remote_code=True,
resume_download=True,
**{"revision": args.model_revision} if args.model_revision is not None and args.model_revision != "" and args.model_revision != "None" else {},
).eval()
model.generation_config = GenerationConfig.from_pretrained("Qwen/Qwen-7B-Chat", trust_remote_code=True, resume_download=True)
if 'exit' in args:
if args.exit:
sys.exit(0)
else:
del args.exit
if 'model_revision' in args:
del args.model_revision
def postprocess(self, y):
if y is None:
return []
for i, (message, response) in enumerate(y):
y[i] = (
None if message is None else mdtex2html.convert((message)),
None if response is None else mdtex2html.convert(response),
)
return y
gr.Chatbot.postprocess = postprocess
def parse_text(text):
"""copy from https://github.com/GaiZhenbiao/ChuanhuChatGPT/"""
lines = text.split("\n")
lines = [line for line in lines if line != ""]
count = 0
for i, line in enumerate(lines):
if "```" in line:
count += 1
items = line.split('`')
if count % 2 == 1:
lines[i] = f'<pre><code class="language-{items[-1]}">'
else:
lines[i] = f'<br></code></pre>'
else:
if i > 0:
if count % 2 == 1:
line = line.replace("`", "\`")
line = line.replace("<", "&lt;")
line = line.replace(">", "&gt;")
line = line.replace(" ", "&nbsp;")
line = line.replace("*", "&ast;")
line = line.replace("_", "&lowbar;")
line = line.replace("-", "&#45;")
line = line.replace(".", "&#46;")
line = line.replace("!", "&#33;")
line = line.replace("(", "&#40;")
line = line.replace(")", "&#41;")
line = line.replace("$", "&#36;")
lines[i] = "<br>" + line
text = "".join(lines)
return text
task_history = []
def predict(input, chatbot):
print('Q: ' + parse_text(input))
chatbot.append((parse_text(input), ""))
fullResponse = ""
for response in model.chat_stream(tokenizer, input, history=task_history):
chatbot[-1] = (parse_text(input), parse_text(response))
yield chatbot
fullResponse = parse_text(response)
task_history.append((input, fullResponse))
print("A: " + parse_text(fullResponse))
def reset_user_input():
return gr.update(value='')
def reset_state():
task_history = []
return []
with gr.Blocks() as demo:
gr.HTML("""<h1 align="center">通义千问 - QwenLM/Qwen-7B</h1>""")
chatbot = gr.Chatbot()
with gr.Row():
with gr.Column(scale=4):
with gr.Column(scale=12):
query = gr.Textbox(show_label=False, placeholder="Input...", lines=10).style(container=False)
with gr.Column(min_width=32, scale=1):
submitBtn = gr.Button("Submit", variant="primary")
with gr.Column(scale=1):
emptyBtn = gr.Button("Clear History")
submitBtn.click(predict, [query, chatbot], [chatbot], show_progress=True)
submitBtn.click(reset_user_input, [], [query])
emptyBtn.click(reset_state, outputs=[chatbot], show_progress=True)
if len(sys.argv) > 1:
demo.queue().launch(**vars(args))
else:
demo.queue().launch()