* bug/doc: Fix invalid EAN-13 barcode in examples
In the various examples and python-escpos CLI there are a number of uses
of `13243546557687` as an EAN-13 example. This EAN barcode is invalid
as the checksum should be `0` and not `7`.
```
$ python test_print.py
Traceback (most recent call last):
File "test_print.py", line 5, in <module>
p.barcode('13243546557687', 'EAN13', 64, 2, '', '')
File "/home/pi/fatt-display/lib/python3.7/site-packages/escpos/escpos.py", line 433, in barcode
bc=bc,
escpos.exceptions.BarcodeCodeError: No Barcode code was supplied (Barcode '13243546557687' not in a valid format for type 'EAN13')
```
This patch set removes `13243546557687` and replaces it with the valid
number `40063813339310`.
In researching the list of [assigned prefixes issued by
G1][g1-prefixes] there seemed to be no "officially" defined test prefix, so
this change was made to be minimally invasive using the number from the
existing test cases.
Resolves#350
Affects #176
[g1-prefixes]: https://www.gs1.org/standards/id-keys/company-prefix
[test-code]: https://www.barcodelookup.com/4006381333931
---------
Co-authored-by: Brian 'Redbeard' Harrington <redbeard@dead-city.org>
* Add buzzer function
* Add `buzzer(time, duration)` function to control the buzzer on supported
printers.
* Add unit tests for buzzer function.
* Update test_function_buzzer.py to pass black
* Run black in tests files
---------
Co-authored-by: Patrick Kanzler <dev@pkanzler.de>
* break line
* remove unused imports
* remove unused os import
* make flake8 more strict
* configure flake for black
* fix action
* use importlib_resources
* rename deprecated methods
* Merge software and hardware barcodes to one method
* Fix wrong sw barcode heigh/width
* Add missing param to _sw_barcode call
* Make barcode() smarter, improvements and clean up
* Use param font_size in sw_barcode()
* Update docstrings
* Update barcode examples and docs
* Add --force_software option to CLI
* Attempt to match the sw and hw barcode sizes
* Better approximation to native font size
* Fix docs build
* Update tests at test_function_softbarcode
* Fix exception
* Move image dpi setting to writter_options
* Fix _sw_barcode() docstring param
* Fix wrong default param in docstring
* improve linkage in documentation
---------
Co-authored-by: Patrick Kanzler <4189642+patkan@users.noreply.github.com>
Co-authored-by: Patrick Kanzler <dev@pkanzler.de>
* Add support for slip/cheque dot matrix printers
* format
* fix comments
---------
Co-authored-by: Patrick Kanzler <4189642+patkan@users.noreply.github.com>
Co-authored-by: Patrick Kanzler <dev@pkanzler.de>
* Add Chinese support
* Add author
* Add newline
* Revert "Add Chinese support"
This reverts commit 110200dde6.
* Add Chinese support
* Add Chinese support
* update mailmap file
* update formatting
---------
Co-authored-by: Patrick Kanzler <dev@pkanzler.de>
Co-authored-by: Patrick Kanzler <4189642+patkan@users.noreply.github.com>
Rendering to /dev/null by a call to .write causes an error. Calling .render directly is simpler and fixes the error.
Co-authored-by: Patrick Kanzler <4189642+patkan@users.noreply.github.com>
This change uses if no path for e capabilities-file is supplied a
temporary file created by pkg_resources, which should be more robust
than directly accessing the file. (This failed sometimes, for example
in zipped distributions or uncommon structures)
Python 2.7 EOL is arriving on 2020-01-01: https://pythonclock.org/
This will allow us to use Python 3 only libraries, like python-barcode,
which can maintain a reduced, simpler codebase, due to only one version
to support.
Closes#371.
Signed-off-by: Romain Porte <microjoe@microjoe.org>
Patrick Kanzler