fix invalid card number handler
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								utils.py
									
									
									
									
									
								
							
							
						
						
									
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								utils.py
									
									
									
									
									
								
							@ -16,7 +16,10 @@ async def tk_balance(card_number: int):
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    file = open("temp.xml", "w+")
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    file.write(text)
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    file.close()
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    balance = ElementTree.parse("temp.xml").findtext(".//pbtext").replace("Билет длительного пользования", "").replace(" руб.", "")
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    try:
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        balance = ElementTree.parse("temp.xml").findtext(".//pbtext").replace("Билет длительного пользования", "").replace(" руб.", "")
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    except AttributeError:
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        return
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    if not balance:
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        return
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    return int(balance)
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