使用 python-barcode 尝试生成条形码并收到错误消息：AttributeError: 'function' object has no attribute 'get'

Question

I'm trying to do a simple function that will return.PNG file with barcode and nubmer at it's bottom. I readed documentation ( https://python-barcode.readthedocs.io/en/stable/barcode.html#creating-barcodes-as-image ) and got no informations how to solve my error.

Here's a code:

def barcode():
    number = '123456789102'
    ean = barcode.get('ean13', number, writer = ImageWriter)
    PNG = ean.save('ean13')
barcode()

And here's an error

   ean = barcode.get("ean13", number, writer = ImageWriter) 
AttributeError: 'function' object has no attribute 'get'

What am I doing wrong? Using same commands like those in documentations work perfectly fine in shell but not as a separate program.

Answer 1

You have to rename your function to avoid the error:

def _barcode():
    number = '123456789102'
    ean = barcode.get('ean13', number, writer = ImageWriter)

_barcode()

To save it to PNG, change your code as follows:

def _barcode():
    number = '123456789102'
    # ean = barcode.get('ean13', number, writer = ImageWriter)
    with open('test.png', 'wb') as f:
        _writer = ImageWriter()
        EAN13(number, _writer).write(f)

_barcode()