Python > TypeError: 'NoneType' object is not callable

Nawok

各位好，我想問我這個程式碼的bug有沒有高人指點一下


import barcode
from barcode.writer import ImageWriter


def barcode_generate(task_code):
    BCD = barcode.get_barcode_class ('code128')
    FBCD = BCD (task_code, writer=ImageWriter ())
    return FBCD


if __name__ == '__main__':
    TKC = input('Enter task code')
    TKB = barcode_generate(TKC)
    TKB.save(f'\\Logistic_System\\Delivering\\deli_lst\\%s' % TKC)



Enter task code1358

Traceback (most recent call last):
  File "Barcode_generator.py", line 21, in <module>
    TKB = barcode_generate(TKC)
  File "Barcode_generator.py", line 15, in barcode_generate
    FBCD = BCD (task_code, writer=ImageWriter ())
TypeError: 'NoneType' object is not callable

wp231957

字面意思BCD 不是一个函数，你把它当一个函数来用，是不行的