app.py

import streamlit as st

class TextLoader:
    def __init__(self, file):
        self.file = file
    def load(self):
        return self.file.read().decode("utf-8")

st.title("Please upload files that are txt format")
uploaded_file = st.file_uploader("Choose a text file", type=["txt"])

if uploaded_file is not None:
    with open("uploaded_file.txt", "wb") as f:
        f.write(uploaded_file.getbuffer())

text_loader = TextLoader(open("uploaded_file.txt","rb"))
file_content = text_loader.load()

# st.write("File content:")
# st.text(file_content)