* 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>
* 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>
* add a method to check barcode code format
ensure that the code to print is compatible with the ESC/POS formats and
also automatically check this format before printing (barcode() method).
* rewrite test using pytest's parametrize functionality
* add test for the 'check' argument
* update authors list
* Example Weather forecast script
Used Adafruits example as base and adapted it for python-escpos
Weather icons taken from
http://adamwhitcroft.com/climacons/
* Weather Icons from Adam Whitcroft
Weather Icons from http://adamwhitcroft.com/climacons/
* update authors
* Minor improvements
* Weather Script Debugged
Added one more Icon
Attributed Icons in readme.md
changed folder structure
* Change formatting
* Fixed pathing to graphics issue
* fixed image size
* autopep8 to clean up the code
* Added the DLE EOT querying command.
Added a function to check whether the printer is online or not, as well
as a reading method for USB printers.
* Update AUTHORS
* Add entry to .mailmap
* currently USB only
* Added authors file
Generated using `git shortlog -s -n` and sorted by alphabetical order
using vim.
* Added generate_authors.sh script and ordered author list
* Regenerated AUTHORS with .mailmap
Patrick Kanzler