Merge pull request python-escpos#388 from python-escpos/development

v3.0a7

.github/workflows/pythonpackage.yml

@@ -0,0 +1,43 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python package
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.5, 3.6, 3.7, 3.8]
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        submodules: 'recursive'
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install flake8 pytest tox tox-gh-actions
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with tox
+      run: |
+        tox
+      env:
+        ESCPOS_CAPABILITIES_FILE: /home/runner/work/python-escpos/python-escpos/capabilities-data/dist/capabilities.json

.gitignore

@@ -29,3 +29,6 @@ test/test-cli-output/
 *.swp
 *.swn
 *.swo
+
+# vscode
+.vscode/settings.json

.travis.yml

@@ -1,7 +1,7 @@
 language: python
 sudo: false
 cache: pip
-dist: xenial
+dist: bionic
 git:
   depth: 100000
 addons:
@@ -29,35 +29,27 @@ matrix:
       osx_image: xcode10.2
       language: shell
       env: TOXENV=py37 ESCPOS_CAPABILITIES_FILE=/Users/travis/build/python-escpos/python-escpos/capabilities-data/dist/capabilities.json
-    - python: 2.7
-      env: TOXENV=py27
-    - python: 3.4
-      env: TOXENV=py34
     - python: 3.5
       env: TOXENV=py35
     - python: 3.6
       env: TOXENV=py36
-    - python: 3.6-dev
-      env: TOXENV=py36
     - python: 3.7
       env: TOXENV=py37
     - python: 3.7-dev
       env: TOXENV=py37
+    - python: 3.8
+      env: TOXENV=py38
     - python: 3.8-dev
       env: TOXENV=py38
     - python: nightly
       env: TOXENV=py38
-    - python: pypy
-      env: TOXENV=pypy
     - python: pypy3
       env: TOXENV=pypy3
-    - python: 3.7
+    - python: 3.8
       env: TOXENV=docs
-    - python: 3.7
+    - python: 3.8
       env: TOXENV=flake8
   allow_failures:
-    - python: 2.7
-    - python: 3.6-dev
     - python: 3.7-dev
     - python: 3.8-dev
     - python: nightly
@@ -86,4 +78,4 @@ deploy:
       tags: true
       repo: python-escpos/python-escpos
       branch: master
-      condition: $TRAVIS_PYTHON_VERSION = "3.7"
+      condition: $TRAVIS_PYTHON_VERSION = "3.8"

.vscode/tasks.json

@@ -0,0 +1,16 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "test with tox",
+            "type": "shell",
+            "command": "tox",
+            "group": {
+                "kind": "test",
+                "isDefault": true
+              }
+        }
+    ]
+}

AUTHORS

@@ -1,8 +1,10 @@
 Ahmed Tahri
 akeonly
+Alexander Bougakov
 Alex Debiasio
 Asuki Kono
 belono
+Brian
 Christoph Heuel
 Cody (Quantified Code Bot)
 csoft2k
@@ -19,6 +21,7 @@ Kristi
 ldos
 Lucy Linder
 Manuel F Martinez
+Maximilian Wagenbach
 Michael Billington
 Michael Elsdörfer
 mrwunderbar666
@@ -36,4 +39,5 @@ Sergio Pulgarin
 Stephan Sokolow
 Thijs Triemstra
 Thomas van den Berg
+Yaisel Hurtado
 ysuolmai

CHANGELOG.rst

@@ -1,10 +1,35 @@
 *********
 Changelog
 *********
+2020-05-09 - Version 3.0a7 - "No Fixed Abode"
+---------------------------------------------
+This release is the eight alpha release of the new version 3.0.
+Please be aware that the API is subject to change until v3.0
+is released.
+
+This release also marks the point at which the project transitioned
+to having only a master-branch (and not an additional development branch).
+
+changes
+^^^^^^^
+- add Exception for NotImplementedError in detach_kernel_driver
+- update installation information
+- update and improve documentation
+- add error handling to image centering flag
+- update and fix tox and CI environment, preparing drop of support for Python 2
+
+contributors
+^^^^^^^^^^^^
+- Alexander Bougakov
+- Brian
+- Yaisel Hurtado
+- Maximilan Wagenbach
+- Patrick Kanzler
+
 2019-06-19 - Version 3.0a6 - "Mistake not..."
 ---------------------------------------------
 This release is the seventh alpha release of the new version 3.0.
-Please be aware the the API is subject to change until v3.0 is
+Please be aware that the API is subject to change until v3.0 is
 released.
 
 changes

CONTRIBUTING.rst

@@ -56,12 +56,9 @@ Apart from that the travis-log and the check by Landscape will provide you with
 
 GIT
 ^^^
-The master-branch contains code that has been released to PyPi. A release is marked with a tag
-corresponding to the version. Issues are closed when they have been resolved in the development-branch.
-
-When you have a change to make, begin by creating a new branch from the HEAD of `python-escpos/development`.
-Name your branch to indicate what you are trying to achieve. Good branch names might
-be `improve/text-handling`, `feature/enable-color-printing`.
+The master-branch contains the main development of the project. A release to PyPi is marked with a tag
+corresponding to the version. Issues are closed when they have been resolved by merging into the master-branch.
+When you have a change to make, begin by creating a new branch from the HEAD of `python-escpos/master`.
 
 Please try to group your commits into logical units. If you need to tidy up your branch, you can make use of a
 git feature called an 'interactive rebase' before making a pull request. A small, self-contained change-set is

INSTALL

@@ -1,23 +1,10 @@
 python-escpos
 =============
 
-Ensure the library is installed on ${lib_arch}/${python_ver}/site-packages/escpos
+This library is available over pypi. So for most of the use-cases it should be sufficient to run
 
-On CLi you must run:
-# python setup.py build
-# sudo python setup.py install
+```
+pip install python-escpos --user  # add --pre if you want to install pre-releases
+```
 
-On Linux, ensure you belongs to the proper group so you can have access to the printer.
-This can be done, by adding yourself to 'dialout' group, this might require to re-login
-so the changes make effect.
-
-Then, add the following rule to /etc/udev/rules.d/99-escpos.rules
-SUBSYSTEM=="usb", ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="0202", MODE="0664", GROUP="dialout"
-
-and restar udev rules.
-# sudo service udev restart
-
-Enjoy !!!
-And please, don't forget to ALWAYS add Epson.cut() at the end of your printing :)
-
-Manuel F Martinez <[email protected]>
+For more information please read the documentation at https://python-escpos.readthedocs.io/en/latest/user/installation.html

MANIFEST.in

@@ -4,6 +4,7 @@ include LICENSE
 include INSTALL
 include tox.ini
 include capabilities-data/dist/capabilities.json
+include src/escpos/capabilities.json
 recursive-include doc *.bat
 recursive-include doc *.ico
 recursive-include doc *.py

README.rst

@@ -76,6 +76,25 @@ Another example based on the Network printer class:
     kitchen.text("Hello World\n")
     kitchen.barcode('1324354657687', 'EAN13', 64, 2, '', '')
     kitchen.cut()
+    
+Another example based on the Serial printer class:
+
+.. code:: python
+
+    from escpos.printer import Serial
+    
+    """ 9600 Baud, 8N1, Flow Control Enabled """
+    p = Serial(devfile='/dev/tty.usbserial',
+               baudrate=9600,
+               bytesize=8,
+               parity='N',
+               stopbits=1,
+               timeout=1.00,
+               dsrdtr=True)
+
+    p.text("Hello World\n")
+    p.qr("You can readme from your smartphone")
+    p.cut()
 
 
 The full project-documentation is available on `Read the Docs <https://python-escpos.readthedocs.io>`_.

doc/user/todo.rst

@@ -2,38 +2,9 @@
 TODO
 ****
 
-Introduction
-------------
-
-python-escpos is the initial idea, from here we can start to build a
-robust library to get most of the ESC/POS printers working with this
-library.
-
-Eventually, this library must be able to cover almost all the defined
-models detailed in the ESC/POS Command Specification Manual.
-
-Details
--------
-
-What things are planned to work on?
-
-Testing
-~~~~~~~
-
-* Test on many printers as possible (USB, Serial, Network)
-* automate testing
-
-Design
-~~~~~~
-
-* Add all those sequences which are not common, but part of the ESC/POS
-  Command Specifications.
-
-  *  Port to Python 3
-  *  Windows compatibility (hidapi instead libusb?)
-  *  PDF417 support
-
-* use something similar to the `capabilities` in escpos-php
+Open points and issues of the project are tracked in the GitHub issues.
+Some annotations still remain in the code and should be moved over time
+into the issue tracker.
 
 Todos in the codebase
 ~~~~~~~~~~~~~~~~~~~~~

doc/user/usage.rst

@@ -48,14 +48,16 @@ to have and the second yields the "Output Endpoint" address.
 
 By default the "Interface" number is "0" and the "Output Endpoint"
 address is "0x01". If you have other values then you can define them on
-your instance. So, assuming that we have another printer where in\_ep is
-on 0x81 and out\_ep=0x02, then the printer definition should look like:
+your instance. So, assuming that we have another printer, CT-S2000, 
+manufactured by Citizen (with "Vendor ID" of 2730 and "Product ID" of 0fff) 
+where in\_ep is on 0x81 and out\_ep=0x02, then the printer definition should 
+look like:
 
 **Generic USB Printer initialization**
 
 ::
 
-    p = printer.Usb(0x1a2b,0x1a2b,0,0x81,0x02)
+    p = printer.Usb(0x2730, 0x0fff, 0, 0x81, 0x02)
 
 Network printer
 ^^^^^^^^^^^^^^^

readthedocs.yml

@@ -3,5 +3,5 @@ formats:
   - epub
 requirements_file: doc/requirements.txt
 python:
-  version: 2
+  version: 3
   setup_py_install: true

setup.py

@@ -66,12 +66,11 @@ def read(fname):
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
-        'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Software Development :: Libraries :: Python Modules',
         'Topic :: Office/Business :: Financial :: Point-Of-Sale',
     ],
@@ -100,7 +99,7 @@ def read(fname):
         'nose',
         'scripttest',
         'mock',
-        'hypothesis!=3.56.9,<4',
+        'hypothesis>4',
         'flake8'
     ],
     entry_points={

src/escpos/escpos.py

@@ -106,6 +106,9 @@ def image(self, img_source, high_density_vertical=True, high_density_horizontal=
             * `graphics`: prints with the `GS ( L`-command
             * `bitImageColumn`: prints with the `ESC *`-command
 
+        When trying to center an image make sure you have initialized the printer with a valid profile, that
+        contains a media width pixel field. Otherwise the centering will have no effect.
+
         :param img_source: PIL image or filename to load: `jpg`, `gif`, `png` or `bmp`
         :param high_density_vertical: print in high density in vertical direction *default:* True
         :param high_density_horizontal: print in high density in horizontal direction *default:* True
@@ -117,6 +120,10 @@ def image(self, img_source, high_density_vertical=True, high_density_horizontal=
         im = EscposImage(img_source)
 
         try:
+            if self.profile.profile_data['media']['width']['pixels'] == "Unknown":
+                print("The media.width.pixel field of the printer profile is not set. " +
+                      "The center flag will have no effect.")
+
             max_width = int(self.profile.profile_data['media']['width']['pixels'])
 
             if im.width > max_width: