The following command line application will create a 128B barcode as an image file of your choice. Some of this code was found on the internet and the rest was created by the Webmaster. This application requires the Python Image Library. I haven't gotten around to generating an output image the hard way so PIL is still required. One trick to get around that is to use something like PY2EXE and create a stand alone executable. PIL will be wrapped up inside of the binary. Enjoy!
help_text = r"""
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
PY_BARCODE v1.0
Copyright 2010 - PSE Entertainment Corp
This small utility uses the Python Image Library (thanks Fredrick Lundh!)
to create a Code 128 Barcode using Character Set B. This set includes
most of the normal characters on your keyboard. The resulting barcode
image will be saved as a file of the following supported types:
jpg, jpeg, gif, png, tif, tiff, bmp
Usage:
py_barcode [string] [valid\path\to\output.png]
Examples:
py_barcode "Hello World" "c:\folder\barcode.png"
py_barcode "98503730-1" "outputbarcode.gif"
py_barcode "Punkin Ninni Rocks!" "c:\folder\subfolder\barcode.jpg"
NOTE: this help_text displays with ANY error. Check that the file path
really exists and that you're requesting one of the supported image types.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
"""
# courbB08.pil PIL Font file uuencoded
courB08_pil ="""eJztl91rFkcUxp+Zt7vGFYzVtiJKICgYlLRWkaBBVGgDraFGCH5gsQp+QMBqabAVRYJYAlakCkoh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"""
# courbB08.pbm font file uuencoded
courB08_pbm ="""eJxNkntM01cUx8+P2/1apUAZEpECq4KRjKhF0E55FYEp4yG6mglz2Q8Q1BhERhhls/zKI+CID4wb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"""
def decodeFontFile(data, file):
""" Decode font file embedded in this script and create file """
from zlib import decompress
from base64 import decodestring
from os.path import exists
# If the font file is missing
if not exists(file):
# Write font file
open (file, "wb").write(decompress(decodestring(data)))
CharSetB = {
' ':0, '!':1, '"':2, '#':3, '$':4, '%':5, '&':6, "'":7,
'(':8, ')':9, '*':10, '+':11, ',':12, '-':13, '.':14, '/':15,
'0':16, '1':17, '2':18, '3':19, '4':20, '5':21, '6':22, '7':23,
'8':24, '9':25, ':':26, ';':27, '<':28, '=':29, '>':30, '?':31,
'@':32, 'A':33, 'B':34, 'C':35, 'D':36, 'E':37, 'F':38, 'G':39,
'H':40, 'I':41, 'J':42, 'K':43, 'L':44, 'M':45, 'N':46, 'O':47,
'P':48, 'Q':49, 'R':50, 'S':51, 'T':52, 'U':53, 'V':54, 'W':55,
'X':56, 'Y':57, 'Z':58, '[':59, '\\':60, ']':61, '^':62, '_':63,
'' :64, 'a':65, 'b':66, 'c':67, 'd':68, 'e':69, 'f':70, 'g':71,
'h':72, 'i':73, 'j':74, 'k':75, 'l':76, 'm':77, 'n':78, 'o':79,
'p':80, 'q':81, 'r':82, 's':83, 't':84, 'u':85, 'v':86, 'w':87,
'x':88, 'y':89, 'z':90, '{':91, '|':92, '}':93, '~':94, '\x7F':95,
'FNC3':96, 'FNC2':97, 'SHIFT':98, 'Code C':99, 'FNC4':100, 'Code A':101, 'FNC1':102, 'START A':103,
'START B':104, 'START C':105, 'STOP':106}
ValueEncodings ={
0:'11011001100', 1:'11001101100', 2:'11001100110',
3:'10010011000', 4:'10010001100', 5:'10001001100',
6:'10011001000', 7:'10011000100', 8:'10001100100',
9:'11001001000', 10:'11001000100', 11:'11000100100',
12:'10110011100', 13:'10011011100', 14:'10011001110',
15:'10111001100', 16:'10011101100', 17:'10011100110',
18:'11001110010', 19:'11001011100', 20:'11001001110',
21:'11011100100', 22:'11001110100', 23:'11101101110',
24:'11101001100', 25:'11100101100', 26:'11100100110',
27:'11101100100', 28:'11100110100', 29:'11100110010',
30:'11011011000', 31:'11011000110', 32:'11000110110',
33:'10100011000', 34:'10001011000', 35:'10001000110',
36:'10110001000', 37:'10001101000', 38:'10001100010',
39:'11010001000', 40:'11000101000', 41:'11000100010',
42:'10110111000', 43:'10110001110', 44:'10001101110',
45:'10111011000', 46:'10111000110', 47:'10001110110',
48:'11101110110', 49:'11010001110', 50:'11000101110',
51:'11011101000', 52:'11011100010', 53:'11011101110',
54:'11101011000', 55:'11101000110', 56:'11100010110',
57:'11101101000', 58:'11101100010', 59:'11100011010',
60:'11101111010', 61:'11001000010', 62:'11110001010',
63:'10100110000', 64:'10100001100', 65:'10010110000',
66:'10010000110', 67:'10000101100', 68:'10000100110',
69:'10110010000', 70:'10110000100', 71:'10011010000',
72:'10011000010', 73:'10000110100', 74:'10000110010',
75:'11000010010', 76:'11001010000', 77:'11110111010',
78:'11000010100', 79:'10001111010', 80:'10100111100',
81:'10010111100', 82:'10010011110', 83:'10111100100',
84:'10011110100', 85:'10011110010', 86:'11110100100',
87:'11110010100', 88:'11110010010', 89:'11011011110',
90:'11011110110', 91:'11110110110', 92:'10101111000',
93:'10100011110', 94:'10001011110', 95:'10111101000',
96:'10111100010', 97:'11110101000', 98:'11110100010',
99:'10111011110',100:'10111101110',101:'11101011110',
102:'11110101110',103:'11010000100',104:'11010010000',
105:'11010011100',106:'1100011101011'}
def makeBits(input_string):
#start code for charsetB
startbits = ValueEncodings[104]
#stop code for charsetB
stopbits = ValueEncodings[106]
bits = ''
checksum = 104
place = 1
for c in input_string:
#get character code
code = CharSetB[c]
char_bits = ValueEncodings[code]
bits = bits + char_bits
checksum = checksum + place*code
place = place + 1
#checksum calculation
checksum = checksum % 103
checksum_bits = ValueEncodings[checksum]
#put it all together
bits = startbits + bits + checksum_bits + stopbits
return bits
def makeBar(value, ext, savepath, height = 40):
import Image, ImageFont, ImageDraw
# Create a missing font file
decodeFontFile(courB08_pil ,"courB08.pil")
decodeFontFile(courB08_pbm ,"courB08.pbm")
# Get the bar code list
bits = makeBits(value)
# Create a new image
whitespace = 10
textpad = 10
im = Image.new("1",(len(bits)+whitespace+whitespace,(height)+textpad))
# Load font
font = ImageFont.load("courB08.pil")
# Create drawer
draw = ImageDraw.Draw(im)
# Erase image
draw.rectangle(((0,0),(im.size[0],im.size[1])),fill=256)
# Draw text
draw.text(((im.size[0]-font.getsize(value)[0])/2, height-2), value, font=font, fill=0)
# Draw the bar codes
for bit in range(len(bits)):
if bits[bit] == '1':
draw.rectangle(((bit+whitespace,0),(bit+whitespace,height-2)),fill=0)
# Save the result image
im.save(savepath)
if __name__=="__main__":
import sys, os
## sys.argv.append("crapola")
## sys.argv.append(r"crapola.png")
#print the help_text if there are any errors
if len(sys.argv) <> 3:
print help_text
sys.exit()
value = sys.argv[1]
outfile = sys.argv[2]
thepath = os.path.normpath(outfile)
ext = os.path.splitext(outfile)[1]
#set the extension appropriately per PIL
if ext.lower() == "jpg": ext = "jpeg"
if ext.lower() == "tif": ext = "tiff"
ext = ext.upper()
makeBar(value,ext,thepath)
[/code]
