如何在python 3.7中生成条码

Question

I am using python 3.7, for barcode generation I am trying to install pyBarcode library using pip install pyBarcode '. but it shows the following error:

Could not find a version that satisfies the requirement pyBarcode (from versions: ) no matching distribution found for pyBarcode

Now, how can I install pyBarcode for my Python version?

Answer 1

1st install the right lib:

pip install python-barcode

then code:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import barcode
from barcode.writer import ImageWriter

def testEan():
    EAN = barcode.get_barcode_class('ean13')
    ean = EAN(u'123456789011', writer=ImageWriter())
    fullname = ean.save('my_ean13_barcode')

if __name__ == '__main__':
    testEan()

this code produces

Answer 2

UPDATE

That means it does not support python 3.7. Try this pip install python-barcode

Run this example to help you understand:

import barcode
from barcode.writer import ImageWriter
from barcode import generate

print(barcode.PROVIDED_BARCODES)
EAN = barcode.get_barcode_class('ean13')
ean = EAN('5901234123457')
fullname = ean.save('ean13_barcode')
ean = EAN('5901234123457', writer=ImageWriter())

f = open('barcode.svg', 'wb')
ean.write(f)

name = generate('EAN13', '5901234123457', output='barcode_svg')
generate('EAN13', '5901234123457', writer=ImageWriter(), output='barcode')

Answer 3

import barcode
from barcode.writer import ImageWriter
from barcode import generate
def testEan():
    EAN = barcode.get_barcode_class('ean13')
    ean = EAN(u'5901234123457', writer=ImageWriter())
    fullname = ean.save('ean13_barcode')
    u'ean13_barcode.png'
    name = generate('EAN13', u'5901234123457', output='barcode_svg')
    print(name)
if __name__ == '__main__':
    testEan()

Answer 4

Install treepoem package:

pip install treepoem
# or
python -m pip install treepoem

Run this code

import treepoem
image = treepoem.generate_barcode(
    barcode_type="code128",  # One of the BWIPP supported codes.
    # barcode_type="qrcode",  
    # One of the BWIPP supported codes.
    # barcode_type="interleaved2of5",  # One of the BWIPP supported codes.
    # barcode_type="code128",  # One of the BWIPP supported codes.
    #    # barcode_type="isbn",  # One of the BWIPP supported codes.
    #    # data="978-3-16-148410-0",
    #   barcode_type="code128",  # One of the BWIPP supported codes.
    #   barcode_type="micropdf417",  # One of the BWIPP supported codes.
    #   barcode_type="ean13",  # One of the BWIPP supported codes.
    data="Your String -978316148fsd4100",
)
image.convert("1").save("output_qrcode_or_barcode.png")

More Detalils

Answer 5

install these packages:

pip install python-barcode

pip install Pillow

then try this code snippet:

from barcode import EAN13
from barcode.writer import ImageWriter

with open('sample.png', 'wb') as f:
    e = EAN13('123412341234', writer=ImageWriter())
    e.write(f)

Note: EAN13 is one of the formats to generate, there are other formats available as well. EAN13 expects 12 digits, and only numeric input is allowed. The 12 digits is taken as input and the 13th digit is checksum of the input.

eg:

input: 123412341234

output:1234123412344

Answer 6

import barcode

hr = barcode.get_barcode_class('ean13')
Hr = hr('1234567891012')
qr = Hr.save('123')