Re: [PyQt] Windows/OS X installers for PyQt4 apps
At least for windows, code developed in Gentoo/Ubuntu/Python-2.5/ Qt/PyQt4 is very efficiently converted to self contained .exe's with pyinstaller and seems a little faster executing (smaller loading time) than py2exe. I prefer pyinstaller a little for the moment, as it seemed clearer and runs well. A simple howto with other quirks discussed and proper howto code that works out of the box (change to your program name, location...) is at http://bytes.com/topic/python/insights/579554-simple-guide-using-pyinstaller which ran out of the box first time on a 2200 line Python QT application (it turned into a 9MB single compressed .exe) Not very technical, but this video shows the pyinstaller process quite clearly http://showmedo.com/videos/video?name=pythonHollandPyInstaller_german Don't know about OS X, but people seem to have success with py2app On Saturday 07 February 2009, Mark Voorhies wrote: I am starting work on a Python/Qt4 based GUI and am looking for advice on packaging the finished application for Windows XP and OS X. The details are: * The development is being done on Linux (Ubuntu and Debian), so open source packaging tools that run on Linux are preferred. * I am using the GPL licensing option for Qt4 (entire application distributed under the GPL). * The current dependencies are Qt4 and some pure Python libraries. * The target audience is non-programmer biologists, so the install process should be on the order of download this file and double-click to install. My initial googling suggests py2exe for Windows and py2app for OS X, but I am particularly interested in the quirks of using such tools to package PyQt. Thank you for your time, Mark Voorhies ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Windows/OS X installers for PyQt4 apps
On sab, 2009-02-07 at 10:58 +0100, stan wrote: At least for windows, code developed in Gentoo/Ubuntu/Python-2.5/ Qt/PyQt4 is very efficiently converted to self contained .exe's with pyinstaller and seems a little faster executing (smaller loading time) than py2exe. I prefer pyinstaller a little for the moment, as it seemed clearer and runs well. A simple howto with other quirks discussed and proper howto code that works out of the box (change to your program name, location...) is at http://bytes.com/topic/python/insights/579554-simple-guide-using-pyinstaller which ran out of the box first time on a 2200 line Python QT application (it turned into a 9MB single compressed .exe) Not very technical, but this video shows the pyinstaller process quite clearly http://showmedo.com/videos/video?name=pythonHollandPyInstaller_german Don't know about OS X, but people seem to have success with py2app PyInstaller SVN trunk is able to package PyQt applications under Mac as well, though it doesn't build a bundle yet (.app). Work is in progress as we speak. -- Giovanni Bajo Develer S.r.l. http://www.develer.com ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Windows/OS X installers for PyQt4 apps
On samedi 07 février 2009, stan wrote: At least for windows, code developed in Gentoo/Ubuntu/Python-2.5/ Qt/PyQt4 is very efficiently converted to self contained .exe's with pyinstaller and seems a little faster executing (smaller loading time) than py2exe. Does it mean you can package a Windows .exe from a linux system? -- Frédéric http://www.gbiloba.org ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Windows/OS X installers for PyQt4 apps
On sab, 2009-02-07 at 11:36 +0100, Frédéric wrote: On samedi 07 février 2009, stan wrote: At least for windows, code developed in Gentoo/Ubuntu/Python-2.5/ Qt/PyQt4 is very efficiently converted to self contained .exe's with pyinstaller and seems a little faster executing (smaller loading time) than py2exe. Does it mean you can package a Windows .exe from a linux system? Yes, PyInstaller SVN trunk can do that as well. It's undocumented at the moment, but it mostly works. To make it work, you need to share a Python Windows installation and of course all required 3rd party libraries. Usually, you fire up a VM with Windows, install Python, PyQt and whatever you need; make sure your application works within the VM with Windows; then share the disk, go back to Linux, and launch PyInstaller in cross-compilation mode, and point it to the mount point which maps to c:\python25. -- Giovanni Bajo Develer S.r.l. http://www.develer.com ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Windows/OS X installers for PyQt4 apps
On sab, 2009-02-07 at 13:09 +0100, Frédéric wrote: On samedi 07 février 2009, Giovanni Bajo wrote: Does it mean you can package a Windows .exe from a linux system? Yes, PyInstaller SVN trunk can do that as well. It's undocumented at the moment, but it mostly works. To make it work, you need to share a Python Windows installation and of course all required 3rd party libraries. Very impressive! Usually, you fire up a VM with Windows, install Python, PyQt and whatever you need; make sure your application works within the VM with Windows; then share the disk, go back to Linux, and launch PyInstaller in cross-compilation mode, and point it to the mount point which maps to c:\python25. Is it possible, once the Windows installation of PyQt and so is done, to move all files to the linux filesystem, and do all things there? My idea is to avoid having a VM running (I use VirtualBox, which takes a lot of resources)... Possibly, but I haven't tested it personally. You're welcome to experiment and report your successes or failures on PyInstaller's mailing list (or anywhere you like to post). What files do I need? Only the c:\python25 dir and its content? I think so. -- Giovanni Bajo Develer S.r.l. http://www.develer.com ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Avoiding freeze of the application
Hi, I want to achieve the following: * My (Windows) application is trying to make a connection with a Linux server, using another application (plink, part of the Putty distro) * Since an external application is to be called, I'm using the method subprocess in this way: retcode = subprocess.call( plink -batch %...@%s echo % (self.beqLineEdit.text(), self.linuxmachineComboBox.currentText()) , shell=True , stderr=errptr ) * However, that call can take up to 10 seconds (worst case). In the mean time, my main application is frozen, I can't do anything else. Now, what I would like to do, is to decouple the above call from the main thread, such that the main application becomes free again. I also would like to start a one shot timer (using QTimer.singleShot()) to create a time-out. This is to prevent a hang of the application, in case something goes wrong during the subprocess call. So, my intention is to check when the one shot timer elapses, if the subprocess call is still busy. If not, then all is fine and I simply ignore the time out. If the subprocess is still busy, I would like to be able to (if needed, forcefully) stop the subprocess call. I currently started the one shot timer just before I launched the subprocess call, but I see that the one shot timer is also blocked by the subprocess call. So, that doesn't do what I in fact want to do. My questions: 1. How can I decouple the subprocess call? 2. How can I forcefully stop a subprocess call (that should be the case if my one shot timer elapses after 10 seconds, and the subprocess call is not returned yet)? 3. What's the best approach to achieve the above requirements? Using a kind of a state machine, where I first start the subprocess call (decoupled), then start the one shot timer, change the state and then check in that state if the subprocess call has indeed ended? And if not, forcefully stop the subprocess call? Any practical helpful tips much appreciated! -- Best rgds, Geert *Use EcoCho http://www.ecocho.com: environmentally friendly search the internet!* ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Avoiding freeze of the application
On Sat, 07 Feb 2009 16:53:27 +0100, Geert Vancompernolle geert.discussi...@gmail.com wrote: Hi, I want to achieve the following: * My (Windows) application is trying to make a connection with a Linux server, using another application (plink, part of the Putty distro) * Since an external application is to be called, I'm using the method subprocess in this way: retcode = subprocess.call( plink -batch %...@%s echo % (self.beqLineEdit.text(), self.linuxmachineComboBox.currentText()) , shell=True , stderr=errptr ) * However, that call can take up to 10 seconds (worst case). In the mean time, my main application is frozen, I can't do anything else. Now, what I would like to do, is to decouple the above call from the main thread, such that the main application becomes free again. I also would like to start a one shot timer (using QTimer.singleShot()) to create a time-out. This is to prevent a hang of the application, in case something goes wrong during the subprocess call. So, my intention is to check when the one shot timer elapses, if the subprocess call is still busy. If not, then all is fine and I simply ignore the time out. If the subprocess is still busy, I would like to be able to (if needed, forcefully) stop the subprocess call. I currently started the one shot timer just before I launched the subprocess call, but I see that the one shot timer is also blocked by the subprocess call. So, that doesn't do what I in fact want to do. My questions: 1. How can I decouple the subprocess call? 2. How can I forcefully stop a subprocess call (that should be the case if my one shot timer elapses after 10 seconds, and the subprocess call is not returned yet)? 3. What's the best approach to achieve the above requirements? Using a kind of a state machine, where I first start the subprocess call (decoupled), then start the one shot timer, change the state and then check in that state if the subprocess call has indeed ended? And if not, forcefully stop the subprocess call? Any practical helpful tips much appreciated! Use QProcess instead of subprocess. Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Avoiding freeze of the application
On Saturday 07 February 2009 13:53:27 Geert Vancompernolle wrote: I currently started the one shot timer just before I launched the subprocess call, but I see that the one shot timer is also blocked by the subprocess call. So, that doesn't do what I in fact want to do. Check the docs for subprocess.call: call(*popenargs, **kwargs): Run command with arguments. Wait for command to complete, then return the returncode attribute. Since it will wait right there until the process ends, your app blocks. My questions: 1. How can I decouple the subprocess call? Check the threading or processing modules. Or use Popen instead of call. 2. How can I forcefully stop a subprocess call (that should be the case if my one shot timer elapses after 10 seconds, and the subprocess call is not returned yet)? You kill it. However, if you start it blocking, you can't. If you create the subprocess using Popen, then you can poll() it, and then, if needed, get its pid and kill it using os.kill. 3. What's the best approach to achieve the above requirements? Using a kind of a state machine, where I first start the subprocess call (decoupled), then start the one shot timer, change the state and then check in that state if the subprocess call has indeed ended? And if not, forcefully stop the subprocess call? Yes, I think. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Windows/OS X installers for PyQt4 apps
stan-54 wrote: At least for windows, code developed in Gentoo/Ubuntu/Python-2.5/ Qt/PyQt4 is very efficiently converted to self contained .exe's with pyinstaller and seems a little faster executing (smaller loading time) than py2exe. While I've also found both pyinstaller and py2exe work great for PyQt, my experience re loading speed has been completely different. In my case, py2exe apps load much faster than pyinstaller's. Eli -- View this message in context: http://www.nabble.com/Windows-OS-X-installers-for-PyQt4-apps-tp21883483p21890549.html Sent from the PyQt mailing list archive at Nabble.com. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Avoiding freeze of the application
If you don't want to use QProcess, you can use subprocess.Popen and the poll() method. This would be something like: popen = Subprocess.Popen(plink -batch %...@%s echo % (self.beqLineEdit.text(), self.linuxmachineComboBox.currentText()) , shell=True , stderr=errptr) And in some QTimer bound method: retcode = popen.poll() if retcode is not None: # process has finished QProcess is nice because it already has a signal that it sends when the process terminates. subprocess.Popen also has some quirks like you can't use poll.wait or os.wait and popen.poll at the same time. Brian On 2/7/09 11:00 AM, Phil Thompson p...@riverbankcomputing.com wrote: On Sat, 07 Feb 2009 16:53:27 +0100, Geert Vancompernolle geert.discussi...@gmail.com wrote: Hi, I want to achieve the following: * My (Windows) application is trying to make a connection with a Linux server, using another application (plink, part of the Putty distro) * Since an external application is to be called, I'm using the method subprocess in this way: retcode = subprocess.call( plink -batch %...@%s echo % (self.beqLineEdit.text(), self.linuxmachineComboBox.currentText()) , shell=True , stderr=errptr ) * However, that call can take up to 10 seconds (worst case). In the mean time, my main application is frozen, I can't do anything else. Now, what I would like to do, is to decouple the above call from the main thread, such that the main application becomes free again. I also would like to start a one shot timer (using QTimer.singleShot()) to create a time-out. This is to prevent a hang of the application, in case something goes wrong during the subprocess call. So, my intention is to check when the one shot timer elapses, if the subprocess call is still busy. If not, then all is fine and I simply ignore the time out. If the subprocess is still busy, I would like to be able to (if needed, forcefully) stop the subprocess call. I currently started the one shot timer just before I launched the subprocess call, but I see that the one shot timer is also blocked by the subprocess call. So, that doesn't do what I in fact want to do. My questions: 1. How can I decouple the subprocess call? 2. How can I forcefully stop a subprocess call (that should be the case if my one shot timer elapses after 10 seconds, and the subprocess call is not returned yet)? 3. What's the best approach to achieve the above requirements? Using a kind of a state machine, where I first start the subprocess call (decoupled), then start the one shot timer, change the state and then check in that state if the subprocess call has indeed ended? And if not, forcefully stop the subprocess call? Any practical helpful tips much appreciated! Use QProcess instead of subprocess. Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] MatplotLib and PyQt
Title: Flashmail Hello,I'm looking for examples of little PyQt applications embending MatplotLib.Best regards.Christophe ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Mayavi, VTK and PyQt
Title: Flashmail Hello,I'm looking for examples of little PyQt applications embending Mayavi.Best regards.Christophe ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] MatplotLib and PyQt
On Sat, Feb 7, 2009 at 6:58 PM, projet...@club-internet.fr wrote: Hello, I'm looking for examples of little PyQt applications embending MatplotLib. Here is a good example: http://matplotlib.sourceforge.net/examples/user_interfaces/embedding_in_qt4.html. The matplotlib mailing list is probably a better place to follow up if you have additional questions specific to matplotlib. Darren ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
