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@@ -6,7 +6,7 @@ import os
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medir = os.path.dirname(__file__)
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example_data_path = os.path.join(medir, 'labels.csv')
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-df = pd.read_csv(example_data_path)
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+df = pd.read_csv(example_data_path, converters={i: str for i in range(3)})
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printer = ql_wrapper.BrotherQlPrinter(model='QL-800', printer_connection='usb://0x04f9:0x209b')
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