Re: Barcodes

2009-08-24 Thread Chris Withers

Ronn Ross wrote:


I found this library, but no 
documentation(https://cybernetics.hudora.biz/projects/wiki/huBarcode). 
Has anyone used this or know of a similar library with better 
documentation?


Yup, reportlab has really good barcode generation stuff.
I use it to generate labels with barcodes on for asset tracking :-)

http://the-gay-bar.com/index.php?/archives/221-Howto-generate-barcodes-in-Python-with-reportlab/

Chris

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Re: Barcodes

2009-08-19 Thread Ronn Ross
On Wed, Aug 19, 2009 at 9:19 AM, Ronn Ross  wrote:

> I was hoping that python would have a library to help me print my own bar
> codes? We will need labels in all sizes and most label printer just work
> with 1 or 2 sizes. I would like to just print a grid of different sizes on
> standard paper. Does python have a bar code printing library?
>
>
>
> On Mon, Aug 17, 2009 at 4:55 PM, Tim Chase 
> wrote:
>
>>  My company needs a small inventory management app. Does
 python have any libraries to help with reading and writing
 bar codes?

>>>
>>> I've written bar code apps and python really doesn't enter
>>> into that part of things.  Printers generally have bar code
>>> printing capabilities so you just send the right escape
>>> sequences and you get the bar codes. To read them, bar code
>>> readers scan and translate before sending the values through
>>> typically a keyboard wedge or serial port.
>>>
>>
>> To add to what Emile mentions, most barcode readers present a
>> keyboard-wedge interface, so that scanning a barcode merely appears as if
>> you typed it at the keyboard (USB readers show up as a HID profile).  Often
>> they'll have configuration barcodes that you can scan to tweak the profile
>> (such as pressing ,  or an arrow-key after sending the barcode;
>> controlling beep tone & volume, etc).
>>
>> For printing barcodes, you can use any number of solutions -- the most
>> popular usually just involves installing a "barcode font" and then rendering
>> text in that font to your desired output canvas.  I believe there are some
>> native rendering solutions as well, but I've not investigated since the font
>> method was more than sufficient for my wants.
>>
>> -tkc
>>
>>
>>
>>
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>
>
> I found this library, but no documentation(
https://cybernetics.hudora.biz/projects/wiki/huBarcode). Has anyone used
this or know of a similar library with better documentation?
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Re: Barcodes

2009-08-17 Thread Tim Chase

My company needs a small inventory management app. Does
python have any libraries to help with reading and writing
bar codes?


I've written bar code apps and python really doesn't enter
into that part of things.  Printers generally have bar code
printing capabilities so you just send the right escape
sequences and you get the bar codes. To read them, bar code
readers scan and translate before sending the values through
typically a keyboard wedge or serial port.


To add to what Emile mentions, most barcode readers present a 
keyboard-wedge interface, so that scanning a barcode merely 
appears as if you typed it at the keyboard (USB readers show up 
as a HID profile).  Often they'll have configuration barcodes 
that you can scan to tweak the profile (such as pressing , 
 or an arrow-key after sending the barcode; controlling beep 
tone & volume, etc).


For printing barcodes, you can use any number of solutions -- the 
most popular usually just involves installing a "barcode font" 
and then rendering text in that font to your desired output 
canvas.  I believe there are some native rendering solutions as 
well, but I've not investigated since the font method was more 
than sufficient for my wants.


-tkc



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Re: Barcodes

2009-08-17 Thread Emile van Sebille

On 8/17/2009 1:18 PM Ronn Ross said...
My company needs a small inventory management app. Does python have any 
libraries to help with reading and writing bar codes?


I've written bar code apps and python really doesn't enter into that 
part of things.  Printers generally have bar code printing capabilities 
so you just send the right escape sequences and you get the bar codes. 
To read them, bar code readers scan and translate before sending the 
values through typically a keyboard wedge or serial port.


Emile

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