"""

pyBarcode

=========

This package provides a simple way to create standard barcodes.

It needs no external packages to be installed, the barcodes are

created as SVG objects. If Pillow is installed, the barcodes can also be

rendered as images (all formats supported by Pillow).

"""

from barcode.codex import Code128, Code39, Gs1_128, PZN

from barcode.ean import EAN13, EAN14, EAN8, JAN

from barcode.errors import BarcodeNotFoundError

from barcode.isxn import ISBN10, ISBN13, ISSN

from barcode.itf import ITF

from barcode.upc import UPCA

from barcode.version import version # noqa: F401

__BARCODE_MAP = {

'ean8': EAN8,

'ean13': EAN13,

'ean': EAN13,

'gtin': EAN14,

'ean14': EAN14,

'jan': JAN,

'upc': UPCA,

'upca': UPCA,

'isbn': ISBN13,

'isbn13': ISBN13,

'gs1': ISBN13,

'isbn10': ISBN10,

'issn': ISSN,

'code39': Code39,

'pzn': PZN,

'code128': Code128,

'itf': ITF,

'gs1_128': Gs1_128,

}

PROVIDED_BARCODES = list(__BARCODE_MAP)

PROVIDED_BARCODES.sort()

def get(name, code=None, writer=None, options=None):

"""Helper method for getting a generator or even a generated code.

:param str name: The name of the type of barcode desired.

:param str code: The actual information to encode. If this parameter is

provided, a generated barcode is returned. Otherwise, the barcode class

is returned.

:param Writer writer: An alternative writer to use when generating the

barcode.

:param dict options: Aditional options to be passed on to the barcode when

generating.

"""

options = options or {}

try:

barcode = __BARCODE_MAP[name.lower()]

except KeyError:

raise BarcodeNotFoundError(

'The barcode {0!r} you requested is not known.'.format(name)

)

if code is not None:

return barcode(code, writer, **options)

else:

return barcode

def get_class(name):

return get_barcode(name)

def generate(

name,

code,

writer=None,

output=None,

writer_options=None,

text=None,

pil=False

):

options = writer_options or {}

barcode = get(name, code, writer, options)

if pil:

return barcode.render(writer_options, text)

if isinstance(output, str):

fullname = barcode.save(output, options, text)

return fullname

else:

barcode.write(output, options, text)

get_barcode = get

get_barcode_class = get_class