add appveyor configuration

AUTHORS

@@ -15,7 +15,6 @@ ldos
 Manuel F Martinez
 Michael Billington
 Michael Elsdörfer
-mrwunderbar666
 Nathan Bookham
 Patrick Kanzler
 Qian Linfeng

CHANGELOG.rst

@@ -2,37 +2,6 @@
 Changelog
 *********
 
-2017-08-04 - Version 3.0a2 - "It's My Party And I'll Sing If I Want To"
------------------------------------------------------------------------
-This release is the third alpha release of the new version 3.0. Please
-be aware that the API will still change until v3.0 is released.
-
-changes
-^^^^^^^
-- refactor of the set-method
-- preliminary support of POS "line display" printing
-- improvement of tests
-- added ImageWidthError
-- list authors in repository
-- add support for software-based barcode-rendering
-- fix SerialException when trying to close device on __del__
-- added the DLE EOT querying command for USB and Serial
-- ensure QR codes have a large enough border
-- make feed for cut optional
-- fix the behavior of horizontal tabs
-- added test script for hard an soft barcodes
-- implemented paper sensor querying command
-- added weather forecast example script
-- added a method for simpler newlines
-
-contributors
-^^^^^^^^^^^^
-- csoft2k
-- Patrick Kanzler
-- mrwunderbar666
-- Romain Porte
-- Ahmed Tahri
-
 2017-03-29 - Version 3.0a1 - "Headcrash"
 ----------------------------------------
 This release is the second alpha release of the new version 3.0. Please

README.rst

@@ -6,6 +6,10 @@ python-escpos - Python library to manipulate ESC/POS Printers
     :target: https://travis-ci.org/python-escpos/python-escpos
     :alt: Continous Integration
 
+.. image:: https://www.quantifiedcode.com/api/v1/project/95748b89a3974700800b85e4ed3d32c4/badge.svg
+    :target: https://www.quantifiedcode.com/app/project/95748b89a3974700800b85e4ed3d32c4
+    :alt: Code issues
+
 .. image:: https://landscape.io/github/python-escpos/python-escpos/master/landscape.svg?style=flat
     :target: https://landscape.io/github/python-escpos/python-escpos/master
     :alt: Code Health

appveyor.yml

@@ -0,0 +1,125 @@
+environment:
+  global:
+    # SDK v7.0 MSVC Express 2008's SetEnv.cmd script will fail if the
+    # /E:ON and /V:ON options are not enabled in the batch script intepreter
+    # See: http://stackoverflow.com/a/13751649/163740
+    CMD_IN_ENV: "cmd /E:ON /V:ON /C .\\appveyor\\run_with_env.cmd"
+
+  matrix:
+
+    # Python 2.7.10 is the latest version and is not pre-installed.
+
+    - PYTHON: "C:\\Python27.10"
+      PYTHON_VERSION: "2.7.10"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python27.10-x64"
+      PYTHON_VERSION: "2.7.10"
+      PYTHON_ARCH: "64"
+
+    # Pre-installed Python versions, which Appveyor may upgrade to
+    # a later point release.
+    # See: http://www.appveyor.com/docs/installed-software#python
+
+    - PYTHON: "C:\\Python27"
+      PYTHON_VERSION: "2.7.x" # currently 2.7.9
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python27-x64"
+      PYTHON_VERSION: "2.7.x" # currently 2.7.9
+      PYTHON_ARCH: "64"
+
+    - PYTHON: "C:\\Python33"
+      PYTHON_VERSION: "3.3.x" # currently 3.3.5
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python33-x64"
+      PYTHON_VERSION: "3.3.x" # currently 3.3.5
+      PYTHON_ARCH: "64"
+
+    - PYTHON: "C:\\Python34"
+      PYTHON_VERSION: "3.4.x" # currently 3.4.3
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python34-x64"
+      PYTHON_VERSION: "3.4.x" # currently 3.4.3
+      PYTHON_ARCH: "64"
+
+    # Python versions not pre-installed
+
+    - PYTHON: "C:\\Python35"
+      PYTHON_VERSION: "3.5.0"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python35-x64"
+      PYTHON_VERSION: "3.5.0"
+      PYTHON_ARCH: "64"
+
+    # Major and minor releases (i.e x.0.0 and x.y.0) prior to 3.3.0 use
+    # a different naming scheme.
+
+    - PYTHON: "C:\\Python270"
+      PYTHON_VERSION: "2.7.0"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python270-x64"
+      PYTHON_VERSION: "2.7.0"
+      PYTHON_ARCH: "64"
+
+install:
+  # If there is a newer build queued for the same PR, cancel this one.
+  # The AppVeyor 'rollout builds' option is supposed to serve the same
+  # purpose but it is problematic because it tends to cancel builds pushed
+  # directly to master instead of just PR builds (or the converse).
+  # credits: JuliaLang developers.
+  - ps: if ($env:APPVEYOR_PULL_REQUEST_NUMBER -and $env:APPVEYOR_BUILD_NUMBER -ne ((Invoke-RestMethod `
+        https://ci.appveyor.com/api/projects/$env:APPVEYOR_ACCOUNT_NAME/$env:APPVEYOR_PROJECT_SLUG/history?recordsNumber=50).builds | `
+        Where-Object pullRequestId -eq $env:APPVEYOR_PULL_REQUEST_NUMBER)[0].buildNumber) { `
+          throw "There are newer queued builds for this pull request, failing early." }
+  - ECHO "Filesystem root:"
+  - ps: "ls \"C:/\""
+
+  - ECHO "Installed SDKs:"
+  - ps: "ls \"C:/Program Files/Microsoft SDKs/Windows\""
+
+  # Install Python (from the official .msi of http://python.org) and pip when
+  # not already installed.
+  - ps: if (-not(Test-Path($env:PYTHON))) { & appveyor\install.ps1 }
+
+  # Prepend newly installed Python to the PATH of this build (this cannot be
+  # done from inside the powershell script as it would require to restart
+  # the parent CMD process).
+  - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
+
+  # Check that we have the expected version and architecture for Python
+  - "python --version"
+  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
+
+  # Upgrade to the latest version of pip to avoid it displaying warnings
+  # about it being out of date.
+  - "pip install --disable-pip-version-check --user --upgrade pip"
+
+  # Install the build dependencies of the project. If some dependencies contain
+  # compiled extensions and are not provided as pre-built wheel packages,
+  # pip will build them from source using the MSVC compiler matching the
+  # target Python version and architecture
+  - "%CMD_IN_ENV% pip install -r requirements.txt"
+
+build_script:
+  # Build the compiled extension
+  - "%CMD_IN_ENV% python setup.py build"
+
+test_script:
+  # Run the project tests
+  - "%CMD_IN_ENV% python setup.py test"
+
+after_test:
+  # If tests are successful, create binary packages for the project.
+  - "%CMD_IN_ENV% python setup.py bdist_wheel"
+  - "%CMD_IN_ENV% python setup.py bdist_wininst"
+  - "%CMD_IN_ENV% python setup.py bdist_msi"
+  - ps: "ls dist"
+
+artifacts:
+  # Archive the generated packages in the ci.appveyor.com build report.
+  - path: dist\*

appveyor/install.ps1

@@ -0,0 +1,229 @@
+# Sample script to install Python and pip under Windows
+# Authors: Olivier Grisel, Jonathan Helmus, Kyle Kastner, and Alex Willmer
+# License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
+
+$MINICONDA_URL = "http://repo.continuum.io/miniconda/"
+$BASE_URL = "https://www.python.org/ftp/python/"
+$GET_PIP_URL = "https://bootstrap.pypa.io/get-pip.py"
+$GET_PIP_PATH = "C:\get-pip.py"
+
+$PYTHON_PRERELEASE_REGEX = @"
+(?x)
+(?<major>\d+)
+\.
+(?<minor>\d+)
+\.
+(?<micro>\d+)
+(?<prerelease>[a-z]{1,2}\d+)
+"@
+
+
+function Download ($filename, $url) {
+    $webclient = New-Object System.Net.WebClient
+
+    $basedir = $pwd.Path + "\"
+    $filepath = $basedir + $filename
+    if (Test-Path $filename) {
+        Write-Host "Reusing" $filepath
+        return $filepath
+    }
+
+    # Download and retry up to 3 times in case of network transient errors.
+    Write-Host "Downloading" $filename "from" $url
+    $retry_attempts = 2
+    for ($i = 0; $i -lt $retry_attempts; $i++) {
+        try {
+            $webclient.DownloadFile($url, $filepath)
+            break
+        }
+        Catch [Exception]{
+            Start-Sleep 1
+        }
+    }
+    if (Test-Path $filepath) {
+        Write-Host "File saved at" $filepath
+    } else {
+        # Retry once to get the error message if any at the last try
+        $webclient.DownloadFile($url, $filepath)
+    }
+    return $filepath
+}
+
+
+function ParsePythonVersion ($python_version) {
+    if ($python_version -match $PYTHON_PRERELEASE_REGEX) {
+        return ([int]$matches.major, [int]$matches.minor, [int]$matches.micro,
+                $matches.prerelease)
+    }
+    $version_obj = [version]$python_version
+    return ($version_obj.major, $version_obj.minor, $version_obj.build, "")
+}
+
+
+function DownloadPython ($python_version, $platform_suffix) {
+    $major, $minor, $micro, $prerelease = ParsePythonVersion $python_version
+
+    if (($major -le 2 -and $micro -eq 0) `
+        -or ($major -eq 3 -and $minor -le 2 -and $micro -eq 0) `
+        ) {
+        $dir = "$major.$minor"
+        $python_version = "$major.$minor$prerelease"
+    } else {
+        $dir = "$major.$minor.$micro"
+    }
+
+    if ($prerelease) {
+        if (($major -le 2) `
+            -or ($major -eq 3 -and $minor -eq 1) `
+            -or ($major -eq 3 -and $minor -eq 2) `
+            -or ($major -eq 3 -and $minor -eq 3) `
+            ) {
+            $dir = "$dir/prev"
+        }
+    }
+
+    if (($major -le 2) -or ($major -le 3 -and $minor -le 4)) {
+        $ext = "msi"
+        if ($platform_suffix) {
+            $platform_suffix = ".$platform_suffix"
+        }
+    } else {
+        $ext = "exe"
+        if ($platform_suffix) {
+            $platform_suffix = "-$platform_suffix"
+        }
+    }
+
+    $filename = "python-$python_version$platform_suffix.$ext"
+    $url = "$BASE_URL$dir/$filename"
+    $filepath = Download $filename $url
+    return $filepath
+}
+
+
+function InstallPython ($python_version, $architecture, $python_home) {
+    Write-Host "Installing Python" $python_version "for" $architecture "bit architecture to" $python_home
+    if (Test-Path $python_home) {
+        Write-Host $python_home "already exists, skipping."
+        return $false
+    }
+    if ($architecture -eq "32") {
+        $platform_suffix = ""
+    } else {
+        $platform_suffix = "amd64"
+    }
+    $installer_path = DownloadPython $python_version $platform_suffix
+    $installer_ext = [System.IO.Path]::GetExtension($installer_path)
+    Write-Host "Installing $installer_path to $python_home"
+    $install_log = $python_home + ".log"
+    if ($installer_ext -eq '.msi') {
+        InstallPythonMSI $installer_path $python_home $install_log
+    } else {
+        InstallPythonEXE $installer_path $python_home $install_log
+    }
+    if (Test-Path $python_home) {
+        Write-Host "Python $python_version ($architecture) installation complete"
+    } else {
+        Write-Host "Failed to install Python in $python_home"
+        Get-Content -Path $install_log
+        Exit 1
+    }
+}
+
+
+function InstallPythonEXE ($exepath, $python_home, $install_log) {
+    $install_args = "/quiet InstallAllUsers=1 TargetDir=$python_home"
+    RunCommand $exepath $install_args
+}
+
+
+function InstallPythonMSI ($msipath, $python_home, $install_log) {
+    $install_args = "/qn /log $install_log /i $msipath TARGETDIR=$python_home"
+    $uninstall_args = "/qn /x $msipath"
+    RunCommand "msiexec.exe" $install_args
+    if (-not(Test-Path $python_home)) {
+        Write-Host "Python seems to be installed else-where, reinstalling."
+        RunCommand "msiexec.exe" $uninstall_args
+        RunCommand "msiexec.exe" $install_args
+    }
+}
+
+function RunCommand ($command, $command_args) {
+    Write-Host $command $command_args
+    Start-Process -FilePath $command -ArgumentList $command_args -Wait -Passthru
+}
+
+
+function InstallPip ($python_home) {
+    $pip_path = $python_home + "\Scripts\pip.exe"
+    $python_path = $python_home + "\python.exe"
+    if (-not(Test-Path $pip_path)) {
+        Write-Host "Installing pip..."
+        $webclient = New-Object System.Net.WebClient
+        $webclient.DownloadFile($GET_PIP_URL, $GET_PIP_PATH)
+        Write-Host "Executing:" $python_path $GET_PIP_PATH
+        & $python_path $GET_PIP_PATH
+    } else {
+        Write-Host "pip already installed."
+    }
+}
+
+
+function DownloadMiniconda ($python_version, $platform_suffix) {
+    if ($python_version -eq "3.4") {
+        $filename = "Miniconda3-3.5.5-Windows-" + $platform_suffix + ".exe"
+    } else {
+        $filename = "Miniconda-3.5.5-Windows-" + $platform_suffix + ".exe"
+    }
+    $url = $MINICONDA_URL + $filename
+    $filepath = Download $filename $url
+    return $filepath
+}
+
+
+function InstallMiniconda ($python_version, $architecture, $python_home) {
+    Write-Host "Installing Python" $python_version "for" $architecture "bit architecture to" $python_home
+    if (Test-Path $python_home) {
+        Write-Host $python_home "already exists, skipping."
+        return $false
+    }
+    if ($architecture -eq "32") {
+        $platform_suffix = "x86"
+    } else {
+        $platform_suffix = "x86_64"
+    }
+    $filepath = DownloadMiniconda $python_version $platform_suffix
+    Write-Host "Installing" $filepath "to" $python_home
+    $install_log = $python_home + ".log"
+    $args = "/S /D=$python_home"
+    Write-Host $filepath $args
+    Start-Process -FilePath $filepath -ArgumentList $args -Wait -Passthru
+    if (Test-Path $python_home) {
+        Write-Host "Python $python_version ($architecture) installation complete"
+    } else {
+        Write-Host "Failed to install Python in $python_home"
+        Get-Content -Path $install_log
+        Exit 1
+    }
+}
+
+
+function InstallMinicondaPip ($python_home) {
+    $pip_path = $python_home + "\Scripts\pip.exe"
+    $conda_path = $python_home + "\Scripts\conda.exe"
+    if (-not(Test-Path $pip_path)) {
+        Write-Host "Installing pip..."
+        $args = "install --yes pip"
+        Write-Host $conda_path $args
+        Start-Process -FilePath "$conda_path" -ArgumentList $args -Wait -Passthru
+    } else {
+        Write-Host "pip already installed."
+    }
+}
+
+function main () {
+    InstallPython $env:PYTHON_VERSION $env:PYTHON_ARCH $env:PYTHON
+    InstallPip $env:PYTHON
+}
+
+main

appveyor/run_with_env.cmd

@@ -0,0 +1,88 @@
+:: To build extensions for 64 bit Python 3, we need to configure environment
+:: variables to use the MSVC 2010 C++ compilers from GRMSDKX_EN_DVD.iso of:
+:: MS Windows SDK for Windows 7 and .NET Framework 4 (SDK v7.1)
+::
+:: To build extensions for 64 bit Python 2, we need to configure environment
+:: variables to use the MSVC 2008 C++ compilers from GRMSDKX_EN_DVD.iso of:
+:: MS Windows SDK for Windows 7 and .NET Framework 3.5 (SDK v7.0)
+::
+:: 32 bit builds, and 64-bit builds for 3.5 and beyond, do not require specific
+:: environment configurations.
+::
+:: Note: this script needs to be run with the /E:ON and /V:ON flags for the
+:: cmd interpreter, at least for (SDK v7.0)
+::
+:: More details at:
+:: https://github.com/cython/cython/wiki/64BitCythonExtensionsOnWindows
+:: http://stackoverflow.com/a/13751649/163740
+::
+:: Author: Olivier Grisel
+:: License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
+::
+:: Notes about batch files for Python people:
+::
+:: Quotes in values are literally part of the values:
+::      SET FOO="bar"
+:: FOO is now five characters long: " b a r "
+:: If you don't want quotes, don't include them on the right-hand side.
+::
+:: The CALL lines at the end of this file look redundant, but if you move them
+:: outside of the IF clauses, they do not run properly in the SET_SDK_64==Y
+:: case, I don't know why.
+@ECHO OFF
+
+SET COMMAND_TO_RUN=%*
+SET WIN_SDK_ROOT=C:\Program Files\Microsoft SDKs\Windows
+SET WIN_WDK=c:\Program Files (x86)\Windows Kits\10\Include\wdf
+
+:: Extract the major and minor versions, and allow for the minor version to be
+:: more than 9.  This requires the version number to have two dots in it.
+SET MAJOR_PYTHON_VERSION=%PYTHON_VERSION:~0,1%
+IF "%PYTHON_VERSION:~3,1%" == "." (
+    SET MINOR_PYTHON_VERSION=%PYTHON_VERSION:~2,1%
+) ELSE (
+    SET MINOR_PYTHON_VERSION=%PYTHON_VERSION:~2,2%
+)
+
+:: Based on the Python version, determine what SDK version to use, and whether
+:: to set the SDK for 64-bit.
+IF %MAJOR_PYTHON_VERSION% == 2 (
+    SET WINDOWS_SDK_VERSION="v7.0"
+    SET SET_SDK_64=Y
+) ELSE (
+    IF %MAJOR_PYTHON_VERSION% == 3 (
+        SET WINDOWS_SDK_VERSION="v7.1"
+        IF %MINOR_PYTHON_VERSION% LEQ 4 (
+            SET SET_SDK_64=Y
+        ) ELSE (
+            SET SET_SDK_64=N
+            IF EXIST "%WIN_WDK%" (
+                :: See: https://connect.microsoft.com/VisualStudio/feedback/details/1610302/
+                REN "%WIN_WDK%" 0wdf
+            )
+        )
+    ) ELSE (
+        ECHO Unsupported Python version: "%MAJOR_PYTHON_VERSION%"
+        EXIT 1
+    )
+)
+
+IF %PYTHON_ARCH% == 64 (
+    IF %SET_SDK_64% == Y (
+        ECHO Configuring Windows SDK %WINDOWS_SDK_VERSION% for Python %MAJOR_PYTHON_VERSION% on a 64 bit architecture
+        SET DISTUTILS_USE_SDK=1
+        SET MSSdk=1
+        "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Setup\WindowsSdkVer.exe" -q -version:%WINDOWS_SDK_VERSION%
+        "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Bin\SetEnv.cmd" /x64 /release
+        ECHO Executing: %COMMAND_TO_RUN%
+        call %COMMAND_TO_RUN% || EXIT 1
+    ) ELSE (
+        ECHO Using default MSVC build environment for 64 bit architecture
+        ECHO Executing: %COMMAND_TO_RUN%
+        call %COMMAND_TO_RUN% || EXIT 1
+    )
+) ELSE (
+    ECHO Using default MSVC build environment for 32 bit architecture
+    ECHO Executing: %COMMAND_TO_RUN%
+    call %COMMAND_TO_RUN% || EXIT 1
+)

doc/requirements.txt

@@ -5,4 +5,3 @@ pyserial
 sphinx-rtd-theme
 setuptools-scm
 docutils>=0.12
-viivakoodi

examples/barcodes.py

@@ -1,11 +0,0 @@
-from escpos.printer import Usb
-
-
-# Adapt to your needs
-p = Usb(0x0416, 0x5011, profile="POS-5890")
-
-# Print software and then hardware barcode with the same content
-p.soft_barcode('code39', '123456')
-p.text('\n')
-p.text('\n')
-p.barcode('123456', 'CODE39')

examples/graphics/climacons/readme.md

@@ -1,10 +0,0 @@
-# Climacons by Adam Whitcroft
-
-75 climatically categorised pictographs for web and UI design by [@adamwhitcroft](http://www.twitter.com/#!/adamwhitcroft).
-
-Visit the [Climacons](http://adamwhitcroft.com/climacons/) website for more information.
-
-Visit [Adam Whitcroft on GitHub](https://github.com/AdamWhitcroft)
-
-## License
-You are free to use any of the Climacons Icons (the "icons") in any personal or commercial work without obligation of payment (monetary or otherwise) or attribution, however a credit for the work would be appreciated. **Do not** redistribute or sell and **do not** claim creative credit. Intellectual property rights are not transferred with the download of the icons.

examples/weather.py

@@ -1,127 +0,0 @@
-#!/usr/bin/python
-
-
-# Adapted script from Adafruit
-# Weather forecast for Raspberry Pi w/Adafruit Mini Thermal Printer.
-# Retrieves data from DarkSky.net's API, prints current conditions and
-# forecasts for next two days.
-# Weather example using nice bitmaps.
-# Written by Adafruit Industries.  MIT license.
-# Adapted and enhanced for escpos library by MrWunderbar666
-
-# Icons taken from http://adamwhitcroft.com/climacons/
-# Check out his github: https://github.com/AdamWhitcroft/climacons
-
-
-from __future__ import print_function
-from datetime import datetime
-import calendar
-import urllib
-import json
-import time
-import os
-
-from escpos.printer import Usb
-
-""" Setting up the main pathing """
-this_dir, this_filename = os.path.split(__file__)
-GRAPHICS_PATH = os.path.join(this_dir, "graphics/climacons/")
-
-# Adapt to your needs
-printer = Usb(0x0416, 0x5011, profile="POS-5890")
-
-# You can get your API Key on www.darksky.net and register a dev account.
-# Technically you can use any other weather service, of course :)
-API_KEY = "YOUR API KEY"
-
-LAT = "22.345490"       # Your Location
-LONG = "114.189945"     # Your Location
-
-
-def forecast_icon(idx):
-    icon = data['daily']['data'][idx]['icon']
-    image = GRAPHICS_PATH + icon + ".png"
-    return image
-
-
-# Dumps one forecast line to the printer
-def forecast(idx):
-    date = datetime.fromtimestamp(int(data['daily']['data'][idx]['time']))
-    day = calendar.day_name[date.weekday()]
-    lo = data['daily']['data'][idx]['temperatureMin']
-    hi = data['daily']['data'][idx]['temperatureMax']
-    cond = data['daily']['data'][idx]['summary']
-    print(date)
-    print(day)
-    print(lo)
-    print(hi)
-    print(cond)
-    time.sleep(1)
-    printer.set(
-        font='a',
-        height=2,
-        align='left',
-        bold=False,
-        double_height=False)
-    printer.text(day + ' \n ')
-    time.sleep(5)           # Sleep to prevent printer buffer overflow
-    printer.text('\n')
-    printer.image(forecast_icon(idx))
-    printer.text('low ' + str(lo))
-    printer.text(deg)
-    printer.text('\n')
-    printer.text(' high ' + str(hi))
-    printer.text(deg)
-    printer.text('\n')
-    # take care of pesky unicode dash
-    printer.text(cond.replace(u'\u2013', '-').encode('utf-8'))
-    printer.text('\n \n')
-
-
-def icon():
-    icon = data['currently']['icon']
-    image = GRAPHICS_PATH + icon + ".png"
-    return image
-
-
-deg = ' C'      # Degree symbol on thermal printer, need to find a better way to use a proper degree symbol
-
-# if you want Fahrenheit change units= to 'us'
-url = "https://api.darksky.net/forecast/" + API_KEY + "/" + LAT + "," + LONG + \
-    "?exclude=[alerts,minutely,hourly,flags]&units=si"  # change last bit to 'us' for Fahrenheit
-response = urllib.urlopen(url)
-data = json.loads(response.read())
-
-printer.print_and_feed(n=1)
-printer.control("LF")
-printer.set(font='a', height=2, align='center', bold=True, double_height=True)
-printer.text("Weather Forecast")
-printer.text("\n")
-printer.set(align='center')
-
-
-# Print current conditions
-printer.set(font='a', height=2, align='center', bold=True, double_height=False)
-printer.text('Current conditions: \n')
-printer.image(icon())
-printer.text("\n")
-
-printer.set(font='a', height=2, align='left', bold=False, double_height=False)
-temp = data['currently']['temperature']
-cond = data['currently']['summary']
-printer.text(temp)
-printer.text(' ')
-printer.text(deg)
-printer.text(' ')
-printer.text('\n')
-printer.text('Sky: ' + cond)
-printer.text('\n')
-printer.text('\n')
-
-# Print forecast
-printer.set(font='a', height=2, align='center', bold=True, double_height=False)
-printer.text('Forecast: \n')
-forecast(0)
-forecast(1)
-printer.cut
-printer.control("LF")

setup.py

@@ -126,7 +126,7 @@ setup(
     tests_require=[
         'jaconv',
         'tox',
-        'pytest!=3.2.0',
+        'pytest',
         'pytest-cov',
         'pytest-mock',
         'nose',

src/escpos/constants.py

@@ -251,10 +251,5 @@ S_RASTER_2H = _PRINT_RASTER_IMG(b'\x02')  # Set raster image double height
 S_RASTER_Q  = _PRINT_RASTER_IMG(b'\x03')  # Set raster image quadruple
 
 # Status Command
-RT_STATUS = DLE + EOT
+RT_STATUS_ONLINE = DLE + EOT +  b'\x01';
-RT_STATUS_ONLINE = RT_STATUS +  b'\x01'
+RT_MASK_ONLINE = 8;
-RT_STATUS_PAPER = RT_STATUS +  b'\x04'
-RT_MASK_ONLINE = 8
-RT_MASK_PAPER = 18
-RT_MASK_LOWPAPER = 30
-RT_MASK_NOPAPER = 114

src/escpos/escpos.py

@@ -36,7 +36,6 @@ from .constants import HW_RESET, HW_SELECT, HW_INIT
 from .constants import CTL_VT, CTL_CR, CTL_FF, CTL_LF, CTL_SET_HT, PANEL_BUTTON_OFF, PANEL_BUTTON_ON
 from .constants import TXT_STYLE
 from .constants import RT_STATUS_ONLINE, RT_MASK_ONLINE
-from .constants import RT_STATUS_PAPER, RT_MASK_PAPER, RT_MASK_LOWPAPER, RT_MASK_NOPAPER
 
 from .exceptions import BarcodeTypeError, BarcodeSizeError, TabPosError
 from .exceptions import CashDrawerError, SetVariableError, BarcodeCodeError
@@ -251,9 +250,9 @@ class Escpos(object):
         """
         max_input = (256 << (out_bytes * 8) - 1)
         if not 1 <= out_bytes <= 4:
-            raise ValueError("Can only output 1-4 bytes")
+            raise ValueError("Can only output 1-4 byes")
         if not 0 <= inp_number <= max_input:
-            raise ValueError("Number too large. Can only output up to {0} in {1} bytes".format(max_input, out_bytes))
+            raise ValueError("Number too large. Can only output up to {0} in {1} byes".format(max_input, out_bytes))
         outp = b''
         for _ in range(0, out_bytes):
             outp += six.int2byte(inp_number % 256)
@@ -460,28 +459,6 @@ class Escpos(object):
         txt = six.text_type(txt)
         self.magic.write(txt)
 
-    def textln(self, txt=''):
-        """Print alpha-numeric text with a newline
-
-        The text has to be encoded in the currently selected codepage.
-        The input text has to be encoded in unicode.
-
-        :param txt: text to be printed with a newline
-        :raises: :py:exc:`~escpos.exceptions.TextError`
-        """
-        self.text('{}\n'.format(txt))
-
-    def ln(self, count=1):
-        """Print a newline or more
-
-        :param count: number of newlines to print
-        :raises: :py:exc:`ValueError` if count < 0
-        """
-        if count < 0:
-            raise ValueError('Count cannot be lesser than 0')
-        if count > 0:
-            self.text('\n' * count)
-
     def block_text(self, txt, font=None, columns=None):
         """ Text is printed wrapped to specified columns
 
@@ -777,40 +754,19 @@ class Escpos(object):
         else:
             self._raw(PANEL_BUTTON_OFF)
 
-    def query_status(self, mode):
+    def query_status(self):
         """ Queries the printer for its status, and returns an array of integers containing it.
-        :param mode: Integer that sets the status mode queried to the printer.
-        RT_STATUS_ONLINE: Printer status.
-        RT_STATUS_PAPER: Paper sensor.
         :rtype: array(integer)"""
-        self._raw(mode)
+        self._raw(RT_STATUS_ONLINE)
         time.sleep(1)
         status = self._read()
-        return status
+        return status or [RT_MASK_ONLINE]
 
     def is_online(self):
         """ Queries the printer its online status.
         When online, returns True; False otherwise.
         :rtype: bool: True if online, False if offline."""
-        status = self.query_status(RT_STATUS_ONLINE)
+        return not (self.query_status()[0] & RT_MASK_ONLINE)
-        if len(status) == 0:
-            return False
-        return not (status & RT_MASK_ONLINE)
-
-    def paper_status(self):
-        """ Queries the printer its paper status.
-        Returns 2 if there is plenty of paper, 1 if the paper has arrived to
-        the near-end sensor and 0 if there is no paper.
-        :rtype: int: 2: Paper is adequate. 1: Paper ending. 0: No paper."""
-        status = self.query_status(RT_STATUS_PAPER)
-        if len(status) == 0:
-            return 2
-        if (status[0] & RT_MASK_NOPAPER == RT_MASK_NOPAPER):
-            return 0
-        if (status[0] & RT_MASK_LOWPAPER == RT_MASK_LOWPAPER):
-            return 1
-        if (status[0] & RT_MASK_PAPER == RT_MASK_PAPER):
-            return 2
 
 
 class EscposIO(object):

src/escpos/printer.py

@@ -155,10 +155,6 @@ class Serial(Escpos):
         """
         self.device.write(msg)
 
-    def _read(self):
-        """ Reads a data buffer and returns it to the caller. """
-        return self.device.read(16)
-
     def close(self):
         """ Close Serial interface """
         if self.device is not None and self.device.is_open:

test/test_function_text.py

@@ -39,27 +39,3 @@ def test_block_text():
         "All the presidents men were eating falafel for breakfast.", font='a')
     assert printer.output == \
         b'All the presidents men were eating falafel\nfor breakfast.'
-
-
-def test_textln():
-    printer = get_printer()
-    printer.textln('hello, world')
-    assert printer.output == b'hello, world\n'
-
-
-def test_textln_empty():
-    printer = get_printer()
-    printer.textln()
-    assert printer.output == b'\n'
-
-
-def test_ln():
-    printer = get_printer()
-    printer.ln()
-    assert printer.output == b'\n'
-
-
-def test_multiple_ln():
-    printer = get_printer()
-    printer.ln(3)
-    assert printer.output == b'\n\n\n'

tox.ini

@@ -7,11 +7,10 @@ deps = nose
        coverage
        scripttest
        mock
-       pytest!=3.2.0
+       pytest
        pytest-cov
        pytest-mock
        hypothesis
-       viivakoodi
 commands = py.test --cov escpos
 
 [testenv:docs]
@@ -19,7 +18,6 @@ basepython = python
 changedir = doc
 deps = sphinx>=1.5.1
        setuptools_scm
-       viivakoodi
 commands = sphinx-build -W -b html -d {envtmpdir}/doctrees .  {envtmpdir}/html
 
 [testenv:flake8]