Merge pull request #47 from Huluti/master

First try to adopt Python3 and PyQt5

.gitignore

@@ -1,5 +1,116 @@
-*.pyc
+# Byte-compiled / optimized / DLL files
-MANIFEST
+__pycache__/
-dist/
+*.py[cod]
-build/
+*$py.class
 
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/

MANIFEST.in

@@ -1,4 +1,3 @@
-include COPYING MANIFEST MANIFEST.in README trimage
+include COPYING MANIFEST MANIFEST.in README.md trimage
 recursive-include desktop *.svg *.desktop
 recursive-include src/ *.py *.png
-

README

@@ -1,15 +0,0 @@
-Trimage image compressor
-A cross-platform tool for optimizing PNG and JPG files.
-
-Trimage is a cross-platform GUI and command-line interface to optimize image
-files via "optipng":http://optipng.sourceforge.net/,
-"advpng":http://advancemame.sourceforge.net/comp-readme.html and
-"jpegoptim":http://www.kokkonen.net/tjko/projects.html, depending on the
-filetype (currently, PNG and JPG files are supported). It was inspired by
-"imageoptim":http://imageoptim.pornel.net/. All image files are losslessly
-compressed on the highest available compression levels. Trimage gives you
-various input functions to fit your own workflow: A regular file dialog,
-dragging and dropping and various command line options.
-
-Visit "Trimage.org":http://trimage.org for more information
-

README.md

@@ -0,0 +1,21 @@
+# Trimage image compressor
+A cross-platform tool for optimizing PNG and JPG files.
+
+Trimage is a cross-platform GUI and command-line interface to optimize image files via [advpng](http://advancemame.sourceforge.net/comp-readme.html), [jpegoptim](http://www.kokkonen.net/tjko/projects.html), [optipng](http://optipng.sourceforge.net) and [pngcrush](https://pmt.sourceforge.io/pngcrush) depending on the
+filetype (currently, PNG and JPG files are supported).
+It was inspired by
+[imageoptim](http://imageoptim.pornel.net).
+
+All image files are losslessly
+compressed on the highest available compression levels. Trimage gives you
+various input functions to fit your own workflow: a regular file dialog,
+dragging and dropping and various command line options.
+
+Visit [Trimage.org](http://trimage.org) for more information.
+
+## Prerequisites
+
+- advpng
+- jpegoptim
+- optipng
+- pngcrush

TODO.md

@@ -0,0 +1,17 @@
+# Todo
+
+- general refactoring
+- sys.exit(1) for errors -- how to handle? Not good to simply sys.exit() from any random part of code (can leave things in a mess)
+- consider context managers for handling compression, so as to keep operations atomic and/or rollback-able
+- add a recursive option on the command-line for use with -d
+- make -f accept a list of files
+- make the current verbose be "normal", and make -verbose print the commandline app prints as well
+- find a way to specify the version once for everywhere
+- notification area drag/drop widget -> probably need gtk for gnome
+- figure out how to make mac and win versions (someone else :) <- via gui2exe
+- animate compressing.gif
+- allow selection/deletion of rows from table (and subsequently the imagelist)
+- punypng api? http://www.gracepointafterfive.com/punypng/api
+- imagemagick/graphicsmagick?
+- always on top option
+- intelligently recompress, i.e. go through the list of files, recompress each until no more gains are seen (and a sensible number-of-tries limit isn't exceeded), and flag that file as fully-optimised. Repeat for each file in the list, until all are done. Saves pointlessly trying to optimise files. Consider the case of a directory of 100 files, already optimised once. Recompressing maximally compresses 90. Recompressing again would currently try to recompress all 100, when only 10 would be worthy of trying to compress further

debian/control

@@ -3,13 +3,13 @@ Section: graphics
 Priority: optional
 Maintainer: Kilian Valkhof <kilian@kilianvalkhof.com>
 Build-Depends: debhelper (>=7), python-support (>=0.8.7), python
-XS-Python-Version: >=2.6
+XS-Python-Version: >=3.4
 Standards-Version: 3.9.1
 Homepage: http://trimage.org
 
 Package: trimage
 Architecture: all
-Depends: ${misc:Depends}, ${python:Depends}, python-qt4 (>=4.4), optipng (>=0.6.2.1), advancecomp (>=1.15), jpegoptim (>=1.2.2), pngcrush (>=1.6.7)
+Depends: ${misc:Depends}, ${python:Depends}, python-pyqt5 (>=5.7), optipng (>=0.6.2.1), advancecomp (>=1.15), jpegoptim (>=1.2.2), pngcrush (>=1.6.7)
 XB-Python-Version: ${python:Versions}
 Description: GUI and command-line interface to optimize image files
  Trimage is a cross-platform GUI and command-line interface to optimize image
@@ -18,4 +18,3 @@ Description: GUI and command-line interface to optimize image files
  compressed on the highest available compression levels. Trimage gives you
  various input functions to fit your own workflow: A regular file dialog,
  dragging and dropping and various command line options.
-

resources/todo

@@ -1,37 +0,0 @@
-==========================================
-todo app wise
-- general refactoring
-- sys.exit(1) for errors -- how to handle? Not good to simply sys.exit() from
-    any random part of code (can leave things in a mess)
-- consider context managers for handling compression, so as to keep operations
-    atomic and/or rollback-able
-
-- add a recursive option on the command-line for use with -d
-- make -f accept a list of files
-- make the current verbose be "normal", and make -verbose print the commandline
-    app prints as well
-
-- find a way to specify the version once for everywhere
-- notification area drag/drop widget
-  -> probably need gtk for gnome
-
-todo else
-- figure out how to make mac and win versions (someone else :) <- via gui2exe
-
-
-===========================================
-later versions:
-    animate compressing.gif
-    allow selection/deletion of rows from table (and subsequently the imagelist)
-    punypng api? http://www.gracepointafterfive.com/punypng/api
-    imagemagick/graphicsmagick?
-    always on top option
-    intelligently recompress, i.e. go through the list of files, recompress
-        each until no more gains are seen (and a sensible number-of-tries limit
-        isn't exceeded), and flag that file as fully-optimised. Repeat for each
-        file in the list, until all are done. Saves pointlessly trying to
-        optimise files. Consider the case of a directory of 100 files, already
-        optimised once. Recompressing maximally compresses 90. Recompressing
-        again would currently try to recompress all 100, when only 10 would be
-        worthy of trying to compress further.
-

setup.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 win=(sys.platform == "win32")
@@ -9,7 +9,7 @@ if win:
 from distutils.core import setup
 
 setup(name = "trimage",
-    version = "1.0.2",
+    version = "1.0.5",
     description = "Trimage image compressor - A cross-platform tool for optimizing PNG and JPG files",
     author = "Kilian Valkhof, Paul Chaplin",
     author_email = "help@trimage.org",
@@ -17,15 +17,14 @@ setup(name = "trimage",
     license = "MIT license",
     package_dir = {'trimage' : 'src/trimage'},
     packages = ["trimage",
-              "trimage.filesize",
+              "trimage.ThreadPool"],
-              "trimage.ThreadPool",],
     package_data = {"trimage" : ["pixmaps/*.*"] },
     data_files=[('share/icons/hicolor/scalable/apps', ['desktop/trimage.svg']),
             ('share/applications', ['desktop/trimage.desktop']),
             ('share/man/man1', ['doc/trimage.1'])],
     scripts = ["trimage"],
     long_description = """Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, advpng and jpegoptim, depending on the filetype (currently, PNG and JPG files are supported). It was inspired by imageoptim. All image files are losslessy compressed on the highest available compression levels. Trimage gives you various input functions to fit your own workflow: A regular file dialog, dragging and dropping and various command line options.""",
-    requires = ["PyQt4 (>=4.4)"],
+    requires = ["PyQt5"],
 
     #for py2exe
     windows=[r'src\trimage\trimage.py'],

src/trimage/ThreadPool/ThreadPool.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 '''
 ThreadPool Implementation
 
@@ -8,7 +10,7 @@ ThreadPool Implementation
 from __future__ import with_statement
 from threading import Thread, RLock
 from time import sleep
-from Queue import Queue, Empty
+from queue import Queue, Empty
 import logging
 import sys
 
@@ -86,7 +88,7 @@ class ThreadPool:
             '''
             try:
                 return_value = self.callable(*self.arguments) #IGNORE:W0142
-            except Exception, excep: #IGNORE:W0703
+            except Exception as excep: #IGNORE:W0703
                 logger = logging.getLogger("threadpool.worker")
                 logger.warning("A job in the ThreadPool raised an exception: " + excep)
                 #else do nothing cause we don't know what to do...
@@ -95,7 +97,7 @@ class ThreadPool:
             try:
                 if (self.return_callback != None):
                     self.return_callback(return_value)
-            except Exception, _: #IGNORE:W0703 everything could go wrong... 
+            except Exception as _: #IGNORE:W0703 everything could go wrong...
                 logger = logging.getLogger('threadpool')
                 logger.warning('Error while delivering return value to callback function')
 

src/trimage/ThreadPool/__init__.py

@@ -1 +1 @@
-from ThreadPool import ThreadPool, ThreadPoolMixIn
+from .ThreadPool import ThreadPool, ThreadPoolMixIn

src/trimage/filesize/PKG-INFO

@@ -1,71 +0,0 @@
-Metadata-Version: 1.0
-Name: hurry.filesize
-Version: 0.9
-Summary: A simple Python library for human readable file sizes (or anything sized in bytes).
-Home-page: UNKNOWN
-Author: Martijn Faassen, Startifact
-Author-email: faassen@startifact.com
-License: ZPL 2.1
-Description: hurry.filesize
-        ==============
-        
-        hurry.filesize a simple Python library that can take a number of bytes and
-        returns a human-readable string with the size in it, in kilobytes (K),
-        megabytes (M), etc.
-        
-        The default system it uses is "traditional", where multipliers of 1024
-        increase the unit size::
-        
-        >>> from hurry.filesize import size
-        >>> size(1024)
-        '1K'
-        
-        An alternative, slightly more verbose system::
-        
-        >>> from hurry.filesize import alternative
-        >>> size(1, system=alternative)
-        '1 byte'
-        >>> size(10, system=alternative)
-        '10 bytes'
-        >>> size(1024, system=alternative)
-        '1 KB'
-        
-        A verbose system::
-        
-        >>> from hurry.filesize import verbose
-        >>> size(10, system=verbose)
-        '10 bytes'
-        >>> size(1024, system=verbose)
-        '1 kilobyte'
-        >>> size(2000, system=verbose)
-        '1 kilobyte'
-        >>> size(3000, system=verbose)
-        '2 kilobytes'
-        >>> size(1024 * 1024, system=verbose)
-        '1 megabyte'
-        >>> size(1024 * 1024 * 3, system=verbose)
-        '3 megabytes'
-        
-        You can also use the SI system, where multipliers of 1000 increase the unit
-        size::
-        
-        >>> from hurry.filesize import si
-        >>> size(1000, system=si)
-        '1K'
-        
-        
-        Changes
-        =======
-        
-        0.9 (2009-03-11)
-        ----------------
-        
-        * Initial public release.
-        
-        Download
-        ========
-        
-Keywords: file size bytes
-Platform: UNKNOWN
-Classifier: Programming Language :: Python
-Classifier: Topic :: Software Development :: Libraries :: Python Modules

src/trimage/filesize/README.txt

@@ -1,50 +0,0 @@
-hurry.filesize
-==============
-
-hurry.filesize a simple Python library that can take a number of bytes and
-returns a human-readable string with the size in it, in kilobytes (K),
-megabytes (M), etc.
-
-The default system it uses is "traditional", where multipliers of 1024
-increase the unit size::
-
-  >>> from hurry.filesize import size
-  >>> size(1024)
-  '1K'
-
-An alternative, slightly more verbose system::
-
-  >>> from hurry.filesize import alternative
-  >>> size(1, system=alternative)
-  '1 byte'
-  >>> size(10, system=alternative)
-  '10 bytes'
-  >>> size(1024, system=alternative)
-  '1 KB'
-
-A verbose system::
-
-  >>> from hurry.filesize import verbose
-  >>> size(10, system=verbose)
-  '10 bytes'
-  >>> size(1024, system=verbose)
-  '1 kilobyte'
-  >>> size(2000, system=verbose)
-  '1 kilobyte'
-  >>> size(3000, system=verbose)
-  '2 kilobytes'
-  >>> size(1024 * 1024, system=verbose)
-  '1 megabyte'
-  >>> size(1024 * 1024 * 3, system=verbose)
-  '3 megabytes'
-
-You can also use the SI system, where multipliers of 1000 increase the unit
-size::
-
-  >>> from hurry.filesize import si
-  >>> size(1000, system=si)
-  '1K'
-
-
-http://pypi.python.org/pypi/hurry.filesize
-

src/trimage/filesize/__init__.py

@@ -1,2 +0,0 @@
-from filesize import size
-from filesize import traditional, alternative, verbose, iec, si

src/trimage/filesize/filesize.py

@@ -1,115 +0,0 @@
-'''
-hurry.filesize
-
-@author: Martijn Faassen, Startifact
-@license: ZPL 2.1
-'''
-
-traditional = [
-    (1024 ** 5, 'P'),
-    (1024 ** 4, 'T'),
-    (1024 ** 3, 'G'),
-    (1024 ** 2, 'M'),
-    (1024 ** 1, 'K'),
-    (1024 ** 0, 'B'),
-    ]
-
-alternative = [
-    (1024 ** 5, ' PB'),
-    (1024 ** 4, ' TB'),
-    (1024 ** 3, ' GB'),
-    (1024 ** 2, ' MB'),
-    (1024 ** 1, ' KB'),
-    (1024 ** 0, (' byte', ' bytes')),
-    ]
-
-verbose = [
-    (1024 ** 5, (' petabyte', ' petabytes')),
-    (1024 ** 4, (' terabyte', ' terabytes')),
-    (1024 ** 3, (' gigabyte', ' gigabytes')),
-    (1024 ** 2, (' megabyte', ' megabytes')),
-    (1024 ** 1, (' kilobyte', ' kilobytes')),
-    (1024 ** 0, (' byte', ' bytes')),
-    ]
-
-iec = [
-    (1024 ** 5, 'Pi'),
-    (1024 ** 4, 'Ti'),
-    (1024 ** 3, 'Gi'),
-    (1024 ** 2, 'Mi'),
-    (1024 ** 1, 'Ki'),
-    (1024 ** 0, ''),
-    ]
-
-si = [
-    (1000 ** 5, 'P'),
-    (1000 ** 4, 'T'),
-    (1000 ** 3, 'G'),
-    (1000 ** 2, 'M'),
-    (1000 ** 1, 'K'),
-    (1000 ** 0, 'B'),
-    ]
-
-
-
-def size(bytes, system=traditional):
-    """Human-readable file size.
-
-    Using the traditional system, where a factor of 1024 is used::
-
-    >>> size(10)
-    '10B'
-    >>> size(100)
-    '100B'
-    >>> size(1000)
-    '1000B'
-    >>> size(2000)
-    '1K'
-    >>> size(10000)
-    '9K'
-    >>> size(20000)
-    '19K'
-    >>> size(100000)
-    '97K'
-    >>> size(200000)
-    '195K'
-    >>> size(1000000)
-    '976K'
-    >>> size(2000000)
-    '1M'
-
-    Using the SI system, with a factor 1000::
-
-    >>> size(10, system=si)
-    '10B'
-    >>> size(100, system=si)
-    '100B'
-    >>> size(1000, system=si)
-    '1K'
-    >>> size(2000, system=si)
-    '2K'
-    >>> size(10000, system=si)
-    '10K'
-    >>> size(20000, system=si)
-    '20K'
-    >>> size(100000, system=si)
-    '100K'
-    >>> size(200000, system=si)
-    '200K'
-    >>> size(1000000, system=si)
-    '1M'
-    >>> size(2000000, system=si)
-    '2M'
-
-    """
-    for factor, suffix in system:
-        if bytes >= factor:
-            break
-    amount = int(bytes/factor)
-    if isinstance(suffix, tuple):
-        singular, multiple = suffix
-        if amount == 1:
-            suffix = singular
-        else:
-            suffix = multiple
-    return str(amount) + suffix

src/trimage/tools.py

@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+
+
+def human_readable_size(num, suffix='B'):
+    for unit in ['','K','M','G','T','P','E','Z']:
+        if abs(num) < 1024.0:
+            return "%3.1f%s%s" % (num, unit, suffix)
+        num /= 1024.0
+    return "%.1f%s%s" % (num, 'Y', suffix)

src/trimage/trimage.py

@@ -1,4 +1,5 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
+
 import time
 import sys
 import errno
@@ -11,12 +12,12 @@ from shutil import copy
 from subprocess import call, PIPE
 from optparse import OptionParser
 
-from PyQt4.QtCore import *
+from PyQt5.QtCore import *
-from PyQt4.QtGui import *
+from PyQt5.QtGui import *
-from filesize import *
+from PyQt5.QtWidgets import *
-from imghdr import what as determinetype
 
-from Queue import Queue
+from tools import human_readable_size
+from queue import Queue
 from ThreadPool import ThreadPool
 from multiprocessing import cpu_count
 
@@ -25,7 +26,7 @@ from ui import Ui_trimage
 VERSION = "1.0.5"
 
 
-class StartQT4(QMainWindow):
+class StartQT5(QMainWindow):
 
     def __init__(self, parent=None):
         QWidget.__init__(self, parent)
@@ -40,7 +41,8 @@ class StartQT4(QMainWindow):
         QCoreApplication.setOrganizationDomain("trimage.org")
         QCoreApplication.setApplicationName("Trimage")
         self.settings = QSettings()
-        self.restoreGeometry(self.settings.value("geometry").toByteArray())
+        if self.settings.value("geometry"):
+            self.restoreGeometry(self.settings.value("geometry"))
 
         # check if apps are installed
         if self.checkapps():
@@ -61,17 +63,12 @@ class StartQT4(QMainWindow):
         self.thread = Worker()
 
         # connect signals with slots
-        QObject.connect(self.ui.addfiles, SIGNAL("clicked()"),
+        self.ui.addfiles.clicked.connect(self.file_dialog)
-            self.file_dialog)
+        self.ui.recompress.clicked.connect(self.recompress_files)
-        QObject.connect(self.ui.recompress, SIGNAL("clicked()"),
+        self.quit_shortcut.activated.connect(self.close)
-            self.recompress_files)
+        self.ui.processedfiles.drop_event_signal.connect(self.file_drop)
-        QObject.connect(self.quit_shortcut, SIGNAL("activated()"),
+        self.thread.finished.connect(self.update_table)
-            qApp, SLOT('quit()'))
+        self.thread.update_ui_signal.connect(self.update_table)
-        QObject.connect(self.ui.processedfiles, SIGNAL("fileDropEvent"),
-            self.file_drop)
-        QObject.connect(self.thread, SIGNAL("finished()"), self.update_table)
-        QObject.connect(self.thread, SIGNAL("terminated()"), self.update_table)
-        QObject.connect(self.thread, SIGNAL("updateUi"), self.update_table)
 
         self.compressing_icon = QIcon(QPixmap(self.ui.get_image("pixmaps/compressing.gif")))
 
@@ -103,14 +100,14 @@ class StartQT4(QMainWindow):
 
         # make sure we quit after processing finished if using cli
         if options.filename or options.directory:
-            QObject.connect(self.thread, SIGNAL("finished()"), quit)
+            self.thread.finished.connect(quit)
             self.cli = True
 
         # send to correct function
         if options.filename:
-            self.file_from_cmd(options.filename.decode("utf-8"))
+            self.file_from_cmd(options.filename)
         if options.directory:
-            self.dir_from_cmd(options.directory.decode("utf-8"))
+            self.dir_from_cmd(options.directory)
 
         self.verbose = options.verbose
 
@@ -143,8 +140,9 @@ class StartQT4(QMainWindow):
     def file_dialog(self):
         """Open a file dialog and send the selected images to compress_file."""
         fd = QFileDialog(self)
-        fd.restoreState(self.settings.value("fdstate").toByteArray())
+        if (self.settings.value("fdstate")):
-        directory = self.settings.value("directory", QVariant("")).toString()
+            fd.restoreState(self.settings.value("fdstate"))
+        directory = self.settings.value("directory", QVariant(""))
         fd.setDirectory(directory)
 
         images = fd.getOpenFileNames(self,
@@ -154,9 +152,10 @@ class StartQT4(QMainWindow):
             "Image files (*.png *.jpg *.jpeg *.PNG *.JPG *.JPEG)")
 
         self.settings.setValue("fdstate", QVariant(fd.saveState()))
+        images = images[0]
         if images:
-          self.settings.setValue("directory", QVariant(path.dirname(unicode(images[0]))))
+            self.settings.setValue("directory", QVariant(path.dirname(images[0])))
-        self.delegator([unicode(fullpath) for fullpath in images])
+            self.delegator([fullpath for fullpath in images])
 
     def recompress_files(self):
         """Send each file in the current file list to compress_file again."""
@@ -173,15 +172,15 @@ class StartQT4(QMainWindow):
         delegatorlist = []
         for fullpath in images:
             try: # recompress images already in the list
-                image = (i.image for i in self.imagelist
+                image = next(i.image for i in self.imagelist
-                    if i.image.fullpath == fullpath).next()
+                    if i.image.fullpath == fullpath)
                 if image.compressed:
                     image.reset()
                     image.recompression = True
                     delegatorlist.append(image)
             except StopIteration:
-            	if not path.isdir(fullpath):
+                if not path.isdir(fullpath):
-                    self. add_image(fullpath, delegatorlist)
+                    self.add_image(fullpath, delegatorlist)
                 else:
                     self.walk(fullpath, delegatorlist)
 
@@ -214,7 +213,7 @@ class StartQT4(QMainWindow):
                 self.systemtray.trayIcon.setToolTip("Trimage image compressor (" + str(len(self.imagelist)) + " files)")
                 self.setWindowTitle("Trimage image compressor (" + str(len(self.imagelist)) + " files)")
         else:
-            print >> sys.stderr, u"[error] %s not a supported image file and/or not writeable" % image.fullpath
+            print("[error] {} not a supported image file and/or not writable".format(image.fullpath), file=sys.stderr)
 
     """
     UI Functions
@@ -264,22 +263,22 @@ class StartQT4(QMainWindow):
         retcode = self.safe_call("jpegoptim" + exe + " --version")
         if retcode != 0:
             status = True
-            sys.stderr.write("[error] please install jpegoptim")
+            print("[error] please install jpegoptim", file=sys.stderr)
 
         retcode = self.safe_call("optipng" + exe + " -v")
         if retcode != 0:
             status = True
-            sys.stderr.write("[error] please install optipng")
+            print("[error] please install optipng", file=sys.stderr)
 
         retcode = self.safe_call("advpng" + exe + " --version")
         if retcode != 0:
             status = True
-            sys.stderr.write("[error] please install advancecomp")
+            print("[error] please install advancecomp", file=sys.stderr)
 
         retcode = self.safe_call("pngcrush" + exe + " -version")
         if retcode != 0:
             status = True
-            sys.stderr.write("[error] please install pngcrush")
+            print("[error] please install pngcrush", file=sys.stderr)
         return status
 
     def safe_call(self, command):
@@ -287,7 +286,7 @@ class StartQT4(QMainWindow):
         while True:
             try:
                 return call(command, shell=True, stdout=PIPE)
-            except OSError, e:
+            except OSError as e:
                 if e.errno == errno.EINTR:
                     continue
                 else:
@@ -357,9 +356,9 @@ class ImageRow:
         self.image = image
         d = {
             'shortname': lambda i: self.statusStr() % i.shortname,
-            'oldfilesizestr': lambda i: size(i.oldfilesize, system=alternative)
+            'oldfilesizestr': lambda i: human_readable_size(i.oldfilesize)
                 if i.compressed else "",
-            'newfilesizestr': lambda i: size(i.newfilesize, system=alternative)
+            'newfilesizestr': lambda i: human_readable_size(i.newfilesize)
                 if i.compressed else "",
             'ratiostr': lambda i:
                 "%.1f%%" % (100 - (float(i.newfilesize) / i.oldfilesize * 100))
@@ -399,7 +398,9 @@ class Image:
         self.reset()
         self.fullpath = fullpath
         if path.isfile(self.fullpath) and access(self.fullpath, WRITEABLE):
-            self.filetype = determinetype(self.fullpath)
+            self.filetype = path.splitext(self.fullpath)[1][1:]
+            if self.filetype == "jpg":
+                self.filetype = "jpeg"
             if self.filetype in ["jpeg", "png"]:
                 oldfile = QFileInfo(self.fullpath)
                 self.shortname = oldfile.fileName()
@@ -407,15 +408,6 @@ class Image:
                 self.icon = QIcon(self.fullpath)
                 self.valid = True
 
-    #def _determinetype(self):
-    #    """ Determine the filetype of the file using imghdr. """
-    #    filetype = determinetype(self.fullpath)
-    #    if filetype in ["jpeg", "png"]:
-    #        self.filetype = filetype
-    #    else:
-    #        self.filetype = None
-    #    return self.filetype
-
     def reset(self):
         self.failed = False
         self.compressed = False
@@ -431,8 +423,8 @@ class Image:
         self.compressing = True
         exe = ".exe" if (sys.platform == "win32") else ""
         runString = {
-            "jpeg": u"jpegoptim" + exe + " -f --strip-all '%(file)s'",
+            "jpeg": "jpegoptim" + exe + " -f --strip-all '%(file)s'",
-            "png": u"optipng" + exe + " -force -o7 '%(file)s'&&advpng" + exe + " -z4 '%(file)s' && pngcrush -rem gAMA -rem alla -rem cHRM -rem iCCP -rem sRGB -rem time '%(file)s' '%(file)s.bak' && mv '%(file)s.bak' '%(file)s'"
+            "png": "optipng" + exe + " -force -o7 '%(file)s'&&advpng" + exe + " -z4 '%(file)s' && pngcrush -rem gAMA -rem alla -rem cHRM -rem iCCP -rem sRGB -rem time '%(file)s' '%(file)s.bak' && mv '%(file)s.bak' '%(file)s'"
         }
         # Create a backup file
         copy(self.fullpath, self.fullpath + '~')
@@ -461,6 +453,8 @@ class Image:
 
 class Worker(QThread):
 
+    update_ui_signal = pyqtSignal()
+
     def __init__(self, parent=None):
         QThread.__init__(self, parent)
         self.toDisplay = Queue()
@@ -488,7 +482,7 @@ class Worker(QThread):
                                    tp._ThreadPool__jobs.empty()):
             image = self.toDisplay.get()
 
-            self.emit(SIGNAL("updateUi"))
+            self.update_ui_signal.emit()
 
             if not self.showapp and self.verbose: # we work via the commandline
                 if image.retcode == 0:
@@ -497,7 +491,7 @@ class Worker(QThread):
                         + ir['oldfilesizestr'] + ", New Size: "
                         + ir['newfilesizestr'] + ", Ratio: " + ir['ratiostr'])
                 else:
-                    print >> sys.stderr, u"[error] %s could not be compressed" % image.fullpath
+                    print("[error] {} could not be compressed".format(image.fullpath), file=sys.stderr)
 
 
 class Systray(QWidget):
@@ -511,15 +505,14 @@ class Systray(QWidget):
 
     def createActions(self):
         self.quitAction = QAction(self.tr("&Quit"), self)
-        QObject.connect(self.quitAction, SIGNAL("triggered()"),
+        self.quitAction.triggered.connect(self.parent.close)
-            qApp, SLOT("quit()"))
 
         self.addFiles = QAction(self.tr("&Add and compress"), self)
         icon = QIcon()
         icon.addPixmap(QPixmap(self.parent.ui.get_image(("pixmaps/list-add.png"))),
             QIcon.Normal, QIcon.Off)
         self.addFiles.setIcon(icon)
-        QObject.connect(self.addFiles, SIGNAL("triggered()"), self.parent.file_dialog)
+        self.addFiles.triggered.connect(self.parent.file_dialog)
 
         self.recompress = QAction(self.tr("&Recompress"), self)
         icon2 = QIcon()
@@ -527,10 +520,11 @@ class Systray(QWidget):
             QIcon.Normal, QIcon.Off)
         self.recompress.setIcon(icon2)
         self.recompress.setDisabled(True)
-        QObject.connect(self.addFiles, SIGNAL("triggered()"), self.parent.recompress_files)
+
+        self.addFiles.triggered.connect(self.parent.recompress_files)
 
         self.hideMain = QAction(self.tr("&Hide window"), self)
-        QObject.connect(self.hideMain, SIGNAL("triggered()"), self.parent.hide_main_window)
+        self.hideMain.triggered.connect(self.parent.hide_main_window)
 
     def createTrayIcon(self):
         self.trayIconMenu = QMenu(self)
@@ -550,7 +544,7 @@ class Systray(QWidget):
 
 if __name__ == "__main__":
     app = QApplication(sys.argv)
-    myapp = StartQT4()
+    myapp = StartQT5()
 
     if myapp.showapp:
         myapp.show()

src/trimage/ui.py

@@ -1,8 +1,14 @@
-from PyQt4.QtCore import *
+#!/usr/bin/env python3
-from PyQt4.QtGui import *
+
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
 from os import path
 
 class TrimageTableView(QTableView):
+
+    drop_event_signal = pyqtSignal(list)
+
     """Init the table drop event."""
     def __init__(self, parent=None):
         super(TrimageTableView, self).__init__(parent)
@@ -21,12 +27,12 @@ class TrimageTableView(QTableView):
         event.accept()
         filelist = []
         for url in event.mimeData().urls():
-            filelist.append(unicode(url.toLocalFile()))
+            filelist.append(url.toLocalFile())
 
-        self.emit(SIGNAL("fileDropEvent"), (filelist))
+        self.drop_event_signal.emit(filelist)
 
 
-class Ui_trimage(object):
+class Ui_trimage():
     def get_image(self, image):
         """ Get the correct link to the images used in the UI """
         imagelink = path.join(path.dirname(path.dirname(path.realpath(__file__))), "trimage/" + image)
@@ -44,7 +50,7 @@ class Ui_trimage(object):
         self.centralwidget.setObjectName("centralwidget")
 
         self.gridLayout_2 = QGridLayout(self.centralwidget)
-        self.gridLayout_2.setMargin(0)
+        self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
         self.gridLayout_2.setSpacing(0)
         self.gridLayout_2.setObjectName("gridLayout_2")
 
@@ -60,7 +66,7 @@ class Ui_trimage(object):
 
         self.verticalLayout = QVBoxLayout(self.widget)
         self.verticalLayout.setSpacing(0)
-        self.verticalLayout.setMargin(0)
+        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
         self.verticalLayout.setObjectName("verticalLayout")
 
         self.frame = QFrame(self.widget)
@@ -68,12 +74,12 @@ class Ui_trimage(object):
 
         self.verticalLayout_2 = QVBoxLayout(self.frame)
         self.verticalLayout_2.setSpacing(0)
-        self.verticalLayout_2.setMargin(0)
+        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
         self.verticalLayout_2.setObjectName("verticalLayout_2")
 
         self.horizontalLayout = QHBoxLayout()
         self.horizontalLayout.setSpacing(0)
-        self.horizontalLayout.setMargin(10)
+        self.horizontalLayout.setContentsMargins(10, 10, 10, 10)
         self.horizontalLayout.setObjectName("horizontalLayout")
 
         self.addfiles = QPushButton(self.frame)
@@ -93,7 +99,7 @@ class Ui_trimage(object):
         font.setPointSize(8)
         self.label.setFont(font)
         self.label.setFrameShadow(QFrame.Plain)
-        self.label.setMargin(1)
+        self.label.setContentsMargins(1, 1, 1, 1)
         self.label.setIndent(10)
         self.label.setObjectName("label")
         self.horizontalLayout.addWidget(self.label)
@@ -143,24 +149,22 @@ class Ui_trimage(object):
     def retranslateUi(self, trimage):
         """ Fill in the texts for all UI elements """
         trimage.setWindowTitle(QApplication.translate("trimage",
-            "Trimage image compressor", None, QApplication.UnicodeUTF8))
+            "Trimage image compressor", None))
         self.addfiles.setToolTip(QApplication.translate("trimage",
-            "Add file to the compression list", None,
+            "Add file to the compression list", None))
-            QApplication.UnicodeUTF8))
         self.addfiles.setText(QApplication.translate("trimage",
-            "&Add and compress", None, QApplication.UnicodeUTF8))
+            "&Add and compress", None))
         self.addfiles.setShortcut(QApplication.translate("trimage",
-            "Alt+A", None, QApplication.UnicodeUTF8))
+            "Alt+A", None))
         self.label.setText(QApplication.translate("trimage",
-            "Drag and drop images onto the table", None,
+            "Drag and drop images onto the table", None))
-            QApplication.UnicodeUTF8))
         self.recompress.setToolTip(QApplication.translate("trimage",
-            "Recompress all images", None, QApplication.UnicodeUTF8))
+            "Recompress all images", None))
         self.recompress.setText(QApplication.translate("trimage",
-            "&Recompress", None, QApplication.UnicodeUTF8))
+            "&Recompress", None))
         self.recompress.setShortcut(QApplication.translate("trimage",
-            "Alt+R", None, QApplication.UnicodeUTF8))
+            "Alt+R", None))
         self.processedfiles.setToolTip(QApplication.translate("trimage",
-            "Drag files in here", None, QApplication.UnicodeUTF8))
+            "Drag files in here", None))
         self.processedfiles.setWhatsThis(QApplication.translate("trimage",
-            "Drag files in here", None, QApplication.UnicodeUTF8))
+            "Drag files in here", None))

trimage

@@ -1,5 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
-#coding: utf-8
 #
 #Copyright (c) 2010 Kilian Valkhof, Paul Chaplin, Tarnay Kálmán
 #