29 lines
728 B
Python
29 lines
728 B
Python
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import sys
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from pkg.calculator import Calculator
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from pkg.render import format_json_output
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def main() -> None:
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calculator = Calculator()
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if len(sys.argv) <= 1:
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print("Calculator App")
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print('Usage: python main.py "<expression>"')
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print('Example: python main.py "3 + 5"')
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return
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expression = " ".join(sys.argv[1:])
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try:
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result = calculator.evaluate(expression)
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if result is not None:
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to_print = format_json_output(expression, result)
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print(to_print)
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else:
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print("Error: Expression is empty or contains only whitespace.")
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except Exception as e:
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print(f"Error: {e}")
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if __name__ == "__main__":
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main()
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