import py_compile
import sys

def validate_syntax(filename):
    try:
        py_compile.compile(filename, doraise=True)
        print(f"✓ {filename} has valid Python syntax")
        return True
    except py_compile.PyCompileError as e:
        print(f"✗ Syntax error in {filename}:")
        print(e)
        return False
    except Exception as e:
        print(f"✗ Error checking {filename}:")
        print(e)
        return False

if __name__ == "__main__":
    filename = "app.py"
    if validate_syntax(filename):
        sys.exit(0)  # Success
    else:
        sys.exit(1)  # Error