Have a XMLReceipt with the line:
<barcode encoding="CODE39">123456789</barcode>
Print the receipt.
Before this commit, jibbrish characters were printed and also kinda 'broke'
the spacing between commands
e.g. If you add an EAN13 barcode below the code39 it would have failed to print correctly too
After this commit, everything prints correctly
OPW 1849284
ref: https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=128closes#24965
* remove references to basestring & unicode (use relevant pycompat
helpers)
* remove some str calls (either entirely or replaced by relevant
helper, either text or native)
* use better API to avoid unnecessary conversions
* remove some XML declarations in views
``import odoo.addons.foo as bar`` doesn't seem to properly trigger the
import hook in Python 3 (it blows up on decimal_precision and
base). Thus convert *all* examples of that pattern to the more
sensible ``from odoo.addons import foo as bar``.
In Python 3:
* various builtins and dict methods were changed to return
view/iterable objects rather than lists
* and the separate Python 2 view/iterable builtins and methods were
removed altogether
This is problematic when using these items as list (which the happens
repeatedly in Odoo), but more viciously when iterating *multiple times*
over them (which also happens, which I've messed up multiple times while
writing this, and which is a pain to debug even when you've just created
the issue).
Convert all code using these to semantics-matching cross-version
helper functions to get the LCD behaviour between P2 and P3, and
forbid the builtins via lint.
issue #8530
In Python 3, ``print`` becomes a builtin function. This is available
in Python 2 by importing the ``print_function`` feature from
``__future__``, the feature is conveniently still available in Python
3 (it just does nothing).
Fixers:
libfuturize.fixes.fix_print_with_import
#8530
Some printers (e.g. matrix/impact printers) may have a hard time
keeping up with the text output, and may trigger timeout errors
because of this, even though they would otherwise produce a correct
result.
Increasing the default timeout to 5s (from the default 1s) should
take care of most slow printers out there.
Instead of hardcoding the IN & OUT endpoint
addresses for the ESC/POS printers, we now
attempt to auto-detect them.
This should increase compatibility with many
compatible thermal printers that are simply
using a different address, such as the
- STMicroelectronics POS58 Printer USB
- HU HAI SUNCSW Receipt Printer Co.,Ltd. Gprinter USB Printer
Fixes#12890
Although it might be a good idea to make sure a printer device is
properly closed, trying for >1 min to do so is too much. It can cause a
>1 min delay between receiving a receipt and actually printing. Also,
just because the device is not cleanly closed does not mean that it will
not work when we open it again.
It makes more sense to just look for usb devices that identify as a
printer and use whatever we get. This saves us time having to explain to
users how to add their particular printer to the whitelist to test.
Christophe Simonis