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| 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() |