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8eacde9
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1 Parent(s): 97c5939

Update app.py

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  1. app.py +14 -74
app.py CHANGED
@@ -1,82 +1,22 @@
1
- import streamlit as st
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- import replicate
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  import os
 
4
 
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- # App title
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- st.set_page_config(page_title="πŸ¦™πŸ’¬ Llama 2 Chatbot")
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-
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- # Replicate Credentials
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- with st.sidebar:
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- st.title('πŸ¦™πŸ’¬ Llama 2 Chatbot')
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- if 'REPLICATE_API_TOKEN' in st.secrets:
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- st.success('API key already provided!', icon='βœ…')
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- replicate_api = st.secrets['REPLICATE_API_TOKEN']
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- else:
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- replicate_api = st.text_input('r8_afc5kESy4ucPojF3Tw1GE25ER4Ovudy1iPVw6:', type='password')
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- if not (replicate_api.startswith('r8_') and len(replicate_api)==40):
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- st.warning('Please enter your credentials!', icon='⚠️')
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- else:
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- st.success('Proceed to entering your prompt message!', icon='πŸ‘‰')
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-
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- # Refactored from https://github.com/a16z-infra/llama2-chatbot
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- st.subheader('Models and parameters')
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- selected_model = st.sidebar.selectbox('Choose a Llama2 model', ['Llama2-7B', 'Llama2-13B', 'Llama2-70B'], key='selected_model')
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- if selected_model == 'Llama2-7B':
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- llm = 'a16z-infra/llama7b-v2-chat:4f0a4744c7295c024a1de15e1a63c880d3da035fa1f49bfd344fe076074c8eea'
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- elif selected_model == 'Llama2-13B':
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- llm = 'a16z-infra/llama13b-v2-chat:df7690f1994d94e96ad9d568eac121aecf50684a0b0963b25a41cc40061269e5'
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- else:
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- llm = 'replicate/llama70b-v2-chat:e951f18578850b652510200860fc4ea62b3b16fac280f83ff32282f87bbd2e48'
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-
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- temperature = st.sidebar.slider('temperature', min_value=0.01, max_value=5.0, value=0.1, step=0.01)
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- top_p = st.sidebar.slider('top_p', min_value=0.01, max_value=1.0, value=0.9, step=0.01)
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- max_length = st.sidebar.slider('max_length', min_value=64, max_value=4096, value=512, step=8)
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-
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- st.markdown('πŸ“– Learn how to build this app in this [blog](https://blog.streamlit.io/how-to-build-a-llama-2-chatbot/)!')
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- os.environ['REPLICATE_API_TOKEN'] = replicate_api
37
 
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- # Store LLM generated responses
39
- if "messages" not in st.session_state.keys():
40
- st.session_state.messages = [{"role": "assistant", "content": "How may I assist you today?"}]
41
 
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- # Display or clear chat messages
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- for message in st.session_state.messages:
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- with st.chat_message(message["role"]):
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- st.write(message["content"])
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- def clear_chat_history():
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- st.session_state.messages = [{"role": "assistant", "content": "How may I assist you today?"}]
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- st.sidebar.button('Clear Chat History', on_click=clear_chat_history)
50
 
51
- # Function for generating LLaMA2 response
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- def generate_llama2_response(prompt_input):
53
- string_dialogue = "You are a helpful assistant. You do not respond as 'User' or pretend to be 'User'. You only respond once as 'Assistant'."
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- for dict_message in st.session_state.messages:
55
- if dict_message["role"] == "user":
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- string_dialogue += "User: " + dict_message["content"] + "\n\n"
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- else:
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- string_dialogue += "Assistant: " + dict_message["content"] + "\n\n"
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- output = replicate.run(llm,
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- input={"prompt": f"{string_dialogue} {prompt_input} Assistant: ",
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- "temperature":temperature, "top_p":top_p, "max_length":max_length, "repetition_penalty":1})
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- return output
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- # User-provided prompt
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- if prompt := st.chat_input(disabled=not replicate_api):
66
- st.session_state.messages.append({"role": "user", "content": prompt})
67
- with st.chat_message("user"):
68
- st.write(prompt)
69
 
70
- # Generate a new response if last message is not from assistant
71
- if st.session_state.messages[-1]["role"] != "assistant":
72
- with st.chat_message("assistant"):
73
- with st.spinner("Thinking..."):
74
- response = generate_llama2_response(prompt)
75
- placeholder = st.empty()
76
- full_response = ''
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- for item in response:
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- full_response += item
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- placeholder.markdown(full_response)
80
- placeholder.markdown(full_response)
81
- message = {"role": "assistant", "content": full_response}
82
- st.session_state.messages.append(message)
 
 
 
1
  import os
2
+ os.environ['REPLICATE_API_TOKEN'] = "r8_afc5kESy4ucPojF3Tw1GE25ER4Ovudy1iPVw6"
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4
+ import replicate
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5
 
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+ #Prompts
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+ pre_prompt = "You are a helpful assistant. You do not respond as 'User' or pretend to be 'User'. You only respond once as 'Assistant'."
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+ prompt_input = "What is streamlit"
9
 
10
+ #Generate LLM response
11
+ output = replicate.run('a16z-infra/llama13b-v2-chat:df7690f1994d94e96ad9d568eac121aecf50684a0b0963b25a41cc40061269e5', #LLM model
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+ input={"prompt": f"{pre_prompt} {prompt_input} Assistant: ", #Prompts
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+ "temperature":0.1, "top_p":0.9, "max_length":124, "repetition_penalty":1}) #Model parameter
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15
+ output
 
 
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+ full_response = ''
 
 
 
 
 
 
 
 
 
 
 
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+ for item in output:
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+ full_response += item
 
 
 
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+ print(full_response)