def __init__(self, ean, writer=None):
ean = ean[:self.digits]
if not ean.isdigit():
raise IllegalCharacterError('Code can only contain numbers.')
self.ean = ean
self.ean = '{0}{1}'.format(ean, self.calculate_checksum())
self.writer = writer or Barcode.default_writer()
def __init__(self, code, writer=None, narrow=2, wide=5):
if not code.isdigit():
raise IllegalCharacterError('ITF code can only contain numbers.')
#Length must be even, prepend 0 if necessary
if len(code) % 2 != 0:
code = '0' + code
self.code = code
self.writer = writer or Barcode.default_writer()
self.narrow = narrow
self.wide = wide
def __init__(self, ean, writer=None):
ean = ean[:self.digits]
if not ean.isdigit():
raise IllegalCharacterError('EAN code can only contain numbers.')
if len(ean) != self.digits:
raise NumberOfDigitsError('EAN must have {0} digits, not '
'{1}.'.format(self.digits, len(ean)))
self.ean = ean
self.ean = '{0}{1}'.format(ean, self.calculate_checksum())
self.writer = writer or Barcode.default_writer()
def render(self, writer_options):
options = dict(module_width=MIN_SIZE / self.narrow,
quiet_zone=MIN_QUIET_ZONE)
options.update(writer_options or {})
return Barcode.render(self, options)
def __init__(self, code, writer=None):
self.code = code
self.writer = writer or Barcode.default_writer()
self._charset = 'B'
self._buffer = ''
check_code(self.code, self.name, code128.ALL)
def __init__(self, code, writer=None, add_checksum=True):
self.code = code.upper()
if add_checksum:
self.code += self.calculate_checksum()
self.writer = writer or Barcode.default_writer()
check_code(self.code, self.name, REF)
def render(self, writer_options=None):
options = dict(module_width=SIZES['SC2'])
options.update(writer_options or {})
return Barcode.render(self, options)
def barcode(codetype, codestring, options=None, **kw):
"""
>>> barcode('nonexistent', '977147396801')
Traceback (most recent call last):
...
ValueError: No renderer for codetype nonexistent
>>> barcode('qrcode', 'Hello Barcode Writer In Pure PostScript.',
... options=dict(version=9, eclevel='M'), margin=10, data_mode='8bits') # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('code128', '^104^102Count^0990123456789^101!',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('pdf417', '^453^178^121^239',
... options=dict(columns=2, rows=10), margin=1, scale=2) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('upca', '78858101497',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> barcode('upce', '0123456',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('royalmail', 'LE28HS9Z',
... options=dict(includetext=False), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('datamatrix', '^142^164^186',
... options=dict(columns=32, rows=32), margin=1, scale=2.0) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('code11', '0123456789',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('code25', '0123456789',
... options=dict(includetext=False, includecheck=False), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('code39', 'THIS IS CODE39',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('code93', 'THIS IS CODE93',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('japanpost', '1231FZ13XHS',
... options=dict(includetext=False), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('azteccode', '00100111001000000101001101111000010100111100101000000110',
... margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('auspost', '5956439111ABA 9',
... options=dict(includetext=False), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('ean13', '977147396801',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('interleaved2of5', '24012345678905',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('raw', '331132131313411122131311333213114131131221323',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('kix', '1231FZ13XHS',
... options=dict(includetext=False), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('postnet', '012345',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('pharmacode', '117480',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('plessey', '012345ABCD',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('symbol', 'fimd',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('onecode', '0123456709498765432101234567891',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('maxicode', '^059^042^041^059^040^03001^02996152382802^029840^029001^0291Z00004951^029UPSN^02906X610^029159^0291234567^0291^0471^029^029Y^029634 ALPHA DR^029PITTSBURGH^029PA^030^062^004^063',
... options=dict(mode=2), margin=1, scale=4) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('msi', '0123456789',
... options=dict(includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('rss14', '24012345678905',
... options=dict(linkage=True, includetext=True), scale=2, margin=1) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('rationalizedCodabar', 'A0123456789B',
... options=dict(includetext=True, includecheck=True), scale=2, margin=10) # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
"""
# search for codetype registry
renderer = Barcode.resolve_codetype(codetype)
if renderer:
return renderer().render(codestring, options=options, **kw)
raise ValueError(u'No renderer for codetype %s' %codetype)
'elaphe.japanpost', 'elaphe.msi', 'elaphe.plessey', 'elaphe.raw',
'elaphe.symbol', 'elaphe.pdf417', 'elaphe.datamatrix', 'elaphe.qrcode',
'elaphe.maxicode', 'elaphe.azteccode']
if __name__=="__main__":
DEFAULT_PLUGINS = [s.replace('elaphe.', '') for s in DEFAULT_PLUGINS]
def load_plugins():
for PL in DEFAULT_PLUGINS:
try:
__import__(PL, fromlist=[PL])
except ImportError, e:
import sys
sys.stdout.write(u'Warning: %s\n' %e)
Barcode.update_codetype_registry()
load_plugins()
def barcode(codetype, codestring, options=None, **kw):
"""
>>> barcode('nonexistent', '977147396801')
Traceback (most recent call last):
...
ValueError: No renderer for codetype nonexistent
>>> barcode('qrcode', 'Hello Barcode Writer In Pure PostScript.',
... options=dict(version=9, eclevel='M'), margin=10, data_mode='8bits') # doctest: +ELLIPSIS
<PIL.EpsImagePlugin.EpsImageFile ...>
>>> # _.show()
>>> barcode('code128', '^104^102Count^0990123456789^101!',
