first demo

.gitignore

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+.venv/

app.py

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+import streamlit as st
+
+st.title("Streamlit First Demo")
+st.markdown("This is a demo of streamlit")
+
+x = st.slider('Selecciona un valor')
+st.write(x, ' al cuadrado es', x * x)

requirements.txt

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+streamlit