Create app.py

app.py

@@ -0,0 +1,106 @@
+import streamlit as st
+import io
+import sys
+from contextlib import redirect_stdout
+import re
+import mistune
+
+def extract_python_code(markdown_text):
+    """Extract Python code blocks from markdown text."""
+    pattern = r"```python\s*(.*?)\s*```"
+    matches = re.findall(pattern, markdown_text, re.DOTALL)
+    return matches
+
+def execute_code(code):
+    """Execute Python code and return the output."""
+    # Create string buffer to capture output
+    buffer = io.StringIO()
+    
+    # Create a dictionary for local variables
+    local_vars = {}
+    
+    try:
+        # Redirect stdout to our buffer
+        with redirect_stdout(buffer):
+            # Execute the code
+            exec(code, {}, local_vars)
+        
+        # Get the output
+        output = buffer.getvalue()
+        return output, None
+    except Exception as e:
+        return None, str(e)
+    finally:
+        buffer.close()
+
+def main():
+    st.set_page_config(page_title="Python Code Executor", layout="wide")
+    
+    st.title("📝 Python Code Executor")
+    st.markdown("Enter Python code directly or upload a .py/.md file")
+    
+    # File uploader
+    uploaded_file = st.file_uploader("Upload a Python (.py) or Markdown (.md) file", 
+                                   type=['py', 'md'])
+    
+    # Code input area
+    if uploaded_file is None:
+        code = st.text_area("Or enter your Python code here:", 
+                           height=200,
+                           placeholder="Enter your Python code...")
+    else:
+        content = uploaded_file.getvalue().decode()
+        if uploaded_file.type == "text/markdown":
+            # Extract Python code from markdown
+            code_blocks = extract_python_code(content)
+            if code_blocks:
+                code = code_blocks[0]  # Use the first Python code block found
+            else:
+                st.error("No Python code blocks found in the markdown file!")
+                return
+        else:
+            # Assume it's a Python file
+            code = content
+        
+        st.code(code, language='python')
+    
+    # Execute button
+    if st.button("▶️ Run Code"):
+        if code:
+            st.markdown("### Output:")
+            output, error = execute_code(code)
+            
+            if error:
+                st.error(f"Error:\n{error}")
+            elif output:
+                st.code(output)
+            else:
+                st.info("Code executed successfully with no output.")
+        else:
+            st.warning("Please enter some code to execute!")
+    
+    # Add some usage information
+    with st.expander("ℹ️ How to use"):
+        st.markdown("""
+        1. Either upload a Python (.py) or Markdown (.md) file containing Python code
+        2. Or enter Python code directly in the text area
+        3. Click the 'Run Code' button to execute
+        
+        **Note:** For markdown files, the code should be in Python code blocks like:
+        ````
+        ```python
+        print("Hello World!")
+        ```
+        ````
+        """)
+    
+    # Add safety information
+    with st.expander("⚠️ Safety Notice"):
+        st.markdown("""
+        - The code executor runs in a restricted environment
+        - Some operations may be limited for security reasons
+        - Be careful when executing code from unknown sources
+        """)
+
+if __name__ == "__main__":
+    main()