app.py

import gradio as gr
import requests
import os 

##Bloom
API_URL = "https://api-inference.huggingface.co/models/bigscience/bloom"
HF_TOKEN = os.environ["HF_TOKEN"]
headers = {"Authorization": f"Bearer {HF_TOKEN}"}

#Tested various prompts initially
prompt1 = """
Q: Joy has 5 balls. He buys 2 more cans of balls. Each can has 3 balls. How many balls he has now?
A: Joy had 5 balls. 2 cans of 3 balls each is 6 balls. 5 + 6 = 11. Answer is 11.
Q: Jane has 16 balls. Half balls are golf balls, and half golf balls are red. How many red golf balls are there?
A: """

prompt2 = """Q: A juggler can juggle 16 balls. Half of the balls are golf balls, and half of the golf balls are blue. How many blue golf balls are there?
A: Let’s think step by step.
"""


def text_generate(problem, template, prompt):
  
  #prints to debug
  print(f"*****Inside text_generate function******")
  print(f"Problem is :{problem}")
  print(f"Template is :{template}")
  print(f"Prompt is :{prompt}")
  
  if len(problem) == 0 and len(template) == 0:
    p = prompt
  else:
    p = problem + "A: " + template #+ "\n"
  print(f"Final prompt is : {p}")
  json_ = {"inputs": p,
            "parameters":
            {
            "top_p": 0.9,
          "temperature": 1.1,
          "max_new_tokens": 64,
          "return_full_text": True
          }, "options": 
              {
              "use_cache": True,
              "wait_for_model":True
              },}
  response = requests.post(API_URL, headers=headers, json=json_)
  print(f"Response  is : {response}")
  output = response.json()
  print(f"output is : {output}") #{output}")
  output_tmp = output[0]['generated_text']
  print(f"output_tmp is: {output_tmp}")
  solution = output_tmp.split("\nQ:")[0]   #output[0]['generated_text'].split("Q:")[0] # +"."
  print(f"Final response after splits is: {solution}")
 
  return solution 


demo = gr.Blocks()

with demo:
  gr.Markdown("<h1><center>Step By Step With Bloom</center></h1>")
  gr.Markdown(
        """[BigScienceW Bloom](https://twitter.com/BigscienceW) \n\n Large language models have demonstrated a capability of 'Chain-of-thought reasoning'. A group of amazing researchers( [Jason Wei et al.](https://arxiv.org/abs/2205.11916)) recently found out that by adding **Lets think step by step** it improves the model's zero-shot performance. Some might say — You can get good results out of LLMs if you know how to speak to them. This space is an attempt at inspecting this LLM behavior/capability in the new HuggingFace BigScienceW [Bloom](https://huggingface.co/bigscience/bloom) model. \n\nThis Space is created by [Yuvraj Sharma](https://twitter.com/yvrjsharma) for EuroPython 2022 Demo.\nThis Space might sometime fail due to inference queue being full and logs would end up showing error as *queue full, try again later*, don't despair and try again after some time. I would try and improve the app as well over next couple days."""
        )
  with gr.Row():

    #example_prompt = gr.Radio( ["Q: A juggler can juggle 16 balls. Half of the balls are golf balls, and half of the golf balls are blue. How many blue golf balls are there?\nA: Let’s think step by step.\n", "Q: Roger has 5 tennis balls already. He buys 2 more cans of tennis balls. Each can has 3 tennis balls. How many tennis balls does he have now?\nA: Let’s think step by step.\n", "Q: On an average Joe throws 25 punches per minute. His fight lasts 5 rounds of 3 minutes each. How many punches did he throw?\nA:  Let’s think about this logically.\n"], label= "Choose a sample Prompt")

    example_problem = gr.Radio( ["Q: A juggler can juggle 16 balls. Half of the balls are golf balls, and half of the golf balls are blue. How many blue golf balls are there?\n", "Q: Roger has 5 tennis balls already. He buys 2 more cans of tennis balls. Each can has 3 tennis balls. How many tennis balls does he have now?\n", "Q: On an average Joe throws 25 punches per minute. His fight lasts 5 rounds of 3 minutes each. How many punches did he throw?\n"], label= "Choose a sample Problem and corresponding Tempplate for Zero-Shot CoT:")

    example_template = gr.Radio( ["Let’s think step by step.\n"," First, ", " Let’s think about this logically.\n", "Let’s solve this problem by splitting it into steps.\n", " Let’s be realistic and think step by step.\n", "Let’s think like a detective step by step.\n", "Let’s think ", "Before we dive into the answer, ", "The answer is after the proof.\n"], label= "Choose a sample Problem and corresponding Template for Zero-Shot CoT:")

    generated_txt = gr.Textbox(lines=10)

  with gr.Row(): 
    input_prompt = gr.Textbox(value="Q: A juggler can juggle 16 balls. Half of the balls are golf balls, and half of the golf balls are blue. How many blue golf balls are there?\nA: Let’s think step by step.\n", label="Or don't select from above examples and just enter your own prompt drawing from the above examples and submit... ")
  
  b1 = gr.Button("Generate Text")
  b1.click(text_generate,inputs=[example_problem, example_template, input_prompt], outputs=generated_txt) #example_prompt
 
  with gr.Row(): 
    gr.Markdown("![visitor badge](https://visitor-badge.glitch.me/badge?page_id=europython2022_step-by-step-with-bloom)")

demo.launch(enable_queue=True, debug=True)