resolved some issues

calculator.py

@@ -1,20 +0,0 @@
-import streamlit as st
-st.title(" Simple Calculator")
-
-# Input numbers
-num1 = st.number_input("Enter first number:")
-num2 = st.number_input("Enter second number:")
-# Operation selection
-operation = st.radio("Select operation:", ("Add", "Subtract", "Multiply",
-"Divide"))
-# Calculate result
-if st.button("Calculate"):
-    if operation == "Add":
-        result = num1 + num2
-    elif operation == "Subtract":
-        result = num1 - num2
-    elif operation == "Multiply":
-        result = num1 * num2
-    elif operation == "Divide":
-        result = num1 / num2 if num2 != 0 else "Error: Division by zero!"
-    st.success(f"Result: {result}")

requirements.txt

@@ -1,3 +1 @@
-altair
-pandas
 streamlit

src/streamlit_app.py

@@ -1,40 +1,20 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
-
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+st.title(" Simple Calculator")
+
+# Input numbers
+num1 = st.number_input("Enter first number:")
+num2 = st.number_input("Enter second number:")
+# Operation selection
+operation = st.radio("Select operation:", ("Add", "Subtract", "Multiply",
+"Divide"))
+# Calculate result
+if st.button("Calculate"):
+    if operation == "Add":
+        result = num1 + num2
+    elif operation == "Subtract":
+        result = num1 - num2
+    elif operation == "Multiply":
+        result = num1 * num2
+    elif operation == "Divide":
+        result = num1 / num2 if num2 != 0 else "Error: Division by zero!"
+    st.success(f"Result: {result}")