Add python 3 compat

Author: Olivier Poitrey

scanman/main.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 
 from kivy.app import App
-from kivy.lang import Builder
 from kivy.uix.boxlayout import BoxLayout
 from kivy.uix.image import Image
 from kivy.core.image import ImageData
@@ -10,7 +9,6 @@
 from kivy.properties import NumericProperty, ObjectProperty, BooleanProperty, StringProperty
 from kivy.uix.behaviors import ToggleButtonBehavior
 from kivy.graphics import Line, Color
-from StringIO import StringIO
 from img2pdf import pdfdoc
 from datetime import datetime
 import smtplib
@@ -21,6 +19,11 @@
 
 from .scanner import Scanner
 
+try:
+    from StringIO import StringIO
+except:
+    from io import StringIO
+
 
 class ScanMan(BoxLayout):
     scan_button = ObjectProperty(None)
@@ -113,18 +116,18 @@ def set_connected(state):
         self.scanner.connected(set_connected)
 
     def on_connected(self, instance, value):
-        print 'connected', value
+        print('connected', value)
         self.reset_custom_status()
         self._update_status()
 
     def on_ready(self, instance, value):
-        print 'ready', value
+        print('ready', value)
         if not self.scanning:
             self.reset_custom_status()
         self._update_status()
 
     def on_scanning(self, instance, value):
-        print 'scanning', value
+        print('scanning', value)
         self._update_status()
 
     def on_custom_status_text(self, instance, value):
@@ -165,14 +168,14 @@ def scan(self):
         self.reset_custom_status()
         self.scanning = True
         profile = self.settings['profiles'][self.ui.active_profile()]
-        print 'scan with profile', profile.get('name')
+        print('scan with profile', profile.get('name'))
 
         pdf = pdfdoc()
         dpi = self.scanner.dev.resolution
 
         def scan_processor(page_index, image):
-            print 'processing page %d' % (page_index+1)
-            self.custom_status_text = 'Processing page %d' % (page_index+1)
+            print('processing page {}'.format(page_index+1))
+            self.custom_status_text = 'Processing page {}'.format(page_index+1)
             self._update_preview(image)
             buf = StringIO()
             image.save(buf, format='JPEG', quality=75, optimize=True)
@@ -182,7 +185,7 @@ def scan_processor(page_index, image):
             buf.close()
 
         def done():
-            print 'processing document'
+            print('processing document')
             self.custom_status_text = 'Processing document…'
             self._update_status()
             filename = datetime.now().strftime(self.settings.get('filename', '%Y%m%d-%H%M%S'))
@@ -193,7 +196,7 @@ def done():
             att = MIMEApplication(pdf.tostring(), _subtype='pdf')
             att.add_header('content-disposition', 'attachment', filename=('utf-8', '', filename + '.pdf'))
             msg.attach(att)
-            print 'sending email', profile
+            print('sending email', profile)
             self.custom_status_text = 'Sending email…'
             s = smtplib.SMTP(profile.get('smtp_server', self.settings.get('smtp_server', 'localhost')))
             if profile.get('smtp_tls', self.settings.get('smtp_tls', False)):
@@ -215,7 +218,7 @@ def cancelled():
         self.scanner.scan(scan_processor, done, cancelled)
 
     def cancel(self):
-        print 'cancelling'
+        print('cancelling')
         self.scanning = False
         self.scanner.cancel()
 
@@ -224,7 +227,7 @@ def main():
     try:
         settings = yaml.safe_load(open(sys.argv[1]))
     except:
-        print "Syntax: scanman <path/to/config.yaml>"
+        print('Syntax: scanman <path/to/config.yaml>')
         exit(1)
     ScanManApp(settings).run()
 

scanman/scanner.py

@@ -1,8 +1,12 @@
 import sane
 import threading
-from Queue import Queue, Empty
 import time
 
+try:
+    from Queue import Queue, Empty
+except:
+    from queue import Queue, Empty
+
 
 class Scanner(object):
     PAGE_LOADED = 82
@@ -116,7 +120,6 @@ def scan():
                         q.join()
                         done()
                     else:
-                        print e
                         cancelled()
                     self.scanning = False
                     return

setup.py

@@ -2,12 +2,12 @@
 setup(
     name='scanman',
     packages=['scanman'],
-    version='0.3',
+    version='0.5',
     description='A ScanSnap manager for Raspbery Pi',
     author='Olivier Poitrey',
     author_email='[email protected]',
     url='https://github.com/rs/scanman',
-    download_url='https://github.com/rs/scanman/tarball/0.3',
+    download_url='https://github.com/rs/scanman/tarball/0.5',
     install_requires=['kivy', 'python-sane', 'img2pdf', 'pyyaml'],
     package_data={'scanman': ['*.kv']},
     entry_points={'console_scripts': [