Create app.py

app.py

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+from langchain_openai import ChatOpenAI
+
+from langchain.schema import HumanMessage, SystemMessage
+from io import StringIO
+import streamlit as st
+from dotenv import load_dotenv
+import time
+import base64
+
+st.title("Review Python Code")
+st.header("Upload your .py file here:")
+
+def text_downloader(raw_text):
+    # Generate a timestamp for the filename to ensure uniqueness
+    timestr = time.strftime("%Y%m%d-%H%M%S")
+    
+    # Encode the raw text in base64 format for file download
+    b64 = base64.b64encode(raw_text.encode()).decode()
+    
+    # Create a new filename with a timestamp
+    new_filename = "code_review_analysis_file_{}_.txt".format(timestr)
+    
+    st.markdown("Download File")
+    
+    # Create an HTML link with the encoded content and filename for download
+    href = f'<a href="data:file/txt;base64,{b64}" download="{new_filename}">Click Here!!</a>'
+    
+    # Display the HTML link using Streamlit markdown
+    st.markdown(href, unsafe_allow_html=True)
+
+# Capture the .py file data
+data = st.file_uploader("Upload python file",type=".py")
+
+if data:
+
+    # Create a StringIO object and initialize it with the decoded content of 'data'
+    stringio = StringIO(data.getvalue().decode('utf-8'))
+
+    # Read the content of the StringIO object and store it in the variable 'read_data'
+    fetched_data = stringio.read()
+
+    st.write(fetched_data)
+
+    # Initialize a ChatOpenAI instance with the specified model name "gpt-3.5-turbo" and a temperature of 0.9.
+    chat = ChatOpenAI(model_name="gpt-3.5-turbo", temperature=0.9)
+
+    # Create a SystemMessage instance with the specified content, providing information about the assistant's role.
+    systemMessage = SystemMessage(content="You are a code review assistant. Provide detailed suggestions to improve the given Python code along by mentioning the existing code line by line with proper indent")
+
+    # Create a HumanMessage instance with content read from some data source.
+    humanMessage = HumanMessage(content=fetched_data)
+
+    # Call the chat method of the ChatOpenAI instance, passing a list of messages containing the system and human messages.
+    finalResponse = chat.invoke([systemMessage, humanMessage])
+
+    
+    #Display review comments
+    st.markdown(finalResponse.content)
+
+
+    text_downloader(finalResponse.content)