不会生成条形码

Question

I was trying to create a bar code generator in python using a fairly simple code. I am new to some this module and am a bit rusty to python so I was wondering what causes an error in the code

#imports the correct module needed to create the barcodes 
from barcode import EAN13
# imports a module that will create the numbers needed for the barcode
from random import randint

codes = []
barcodes = []
for i in range(100):
    code = randint(1111111111111, 9999999999999)
    while code not in codes:
        codes.append(code)

# creates the barcode object   
for code in codes: 
    barcode = EAN13("{codes}")
    barcodes.append(barcode)


# prints the barcode
print(barcodes(0))



Error caused
will not generate any barcodes because the number cant be saved as a string

i want this to be able to display barcodes

Answer 1

You can use the ImageWriter to save as png files. Import and use when creating the barcode.

from barcode import EAN13
from random import randint
from barcode.writer import ImageWriter

codes = []
barcodes = []
for i in range(100):
    code = randint(1111111111111, 9999999999999)
    while code not in codes:
        codes.append(code)

# creates the barcode object
for code in codes:
    code = str(code)
    # barcode = EAN13(code)
    barcode = EAN13(code, writer=ImageWriter())
    barcodes.append(barcode)

# render the first barcode in the list
# barcodes[0].render()

for bc in barcodes:
    bc.save(f'barcode{bc.ean}')