Re: [SailfishDevel] python development
2013/12/19 David Jensen davidjen...@usa.net: Nokia's original book on Meego featured, I think, Python as the development. I do not see this book on Amazon. However, almost none of the articles I have seen relating to Jolla mention Python. I assumed Nokia believed Python was an ideal language for an open system that was easily modifiable by others. I get the impression the language is C++. This is more difficult than Java and possibly also Objective C. How does Jolla expect their system to be adapted as open if the language developers have to deal with is C++, with Python a vague afterthought? Python 3 and a QML Plugin that can be used to call Python code from QML will be available soon in the repositories, we're testing integration and making sure everything works and the API is stable. We use Python 3 instead of Python 2, because Python 2 is going away soon[1]. With that said, the language for native Sailfish user interfaces is QML, which has a built-in JavaScript engine, and support for JavaScript expressions and blocks. You can do native development with QML and JavaScript alone, or go with the C++/QML/JS or QML/JS/Python combo. There's nothing stopping you from linking against any other dynamic language, you just have to write the binding / data passing between QML (the UI layer) and your favorite language manually (in C/C++). HTH :) Thomas [1] http://www.python.org/dev/peps/pep-0404/ ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] python development
David Jensen (2013-12-19 21:46): Nokia's original book on Meego featured, I think, Python as the development. I do not see this book on Amazon. However, almost none of the articles I have seen relating to Jolla mention Python. I assumed Nokia believed Python was an ideal language for an open system that was easily modifiable by others. I get the impression the language is C++. This is more difficult than Java and possibly also Objective C. How does Jolla expect their system to be adapted as open if the language developers have to deal with is C++, with Python a vague afterthought? I would say nothing is harder then Objective C ;-), but to not start a rant - I don't think you will find a developer that never used C++ (or at least not after any technical university I know). Also note that most of the languages are based on C++ (including Java), so the syntax shouldn't be too shocking ;-). Python on the other hand is more similar to Pascal which is less popular. I won't talk about Objective C, because I don't know any similar language ;-). Probably due to the fact that Apple was creating it in the same time as C++ was developed... Having said that. You can install python on Jolla/Sailfish using pckon http://talk.maemo.org/showthread.php?t=92036: pkcon install python Regards, Nux. ___ SailfishOS.org Devel mailing list
[SailfishDevel] python development
Nokia's original book on Meego featured, I think, Python as the development. I do not see this book on Amazon. However, almost none of the articles I have seen relating to Jolla mention Python. I assumed Nokia believed Python was an ideal language for an open system that was easily modifiable by others. I get the impression the language is C++. This is more difficult than Java and possibly also Objective C. How does Jolla expect their system to be adapted as open if the language developers have to deal with is C++, with Python a vague afterthought? David Jensen ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] python development
W dniu 19.12.2013 21:46, David Jensen pisze: Nokia's original book on Meego featured, I think, Python as the development. I do not see this book on Amazon. However, almost none of the articles I have seen relating to Jolla mention Python. I assumed Nokia believed Python was an ideal language for an open system that was easily modifiable by others. I get the impression the language is C++. This is more difficult than Java and possibly also Objective C. How does Jolla expect their system to be adapted as open if the language developers have to deal with is C++, with Python a vague afterthought? You can already do Qt/QML + Python apps for Sailfish - check pyotherside (examples included) - https://github.com/nemomobile-packages/pyotherside Support in Harbour for PyOtherside apps is also coming soon(TM). In other words nothing prevents you to do Python apps for Sailfish OS. Regards, Filip ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] python development
The interesting question is, why did the original creators of Qt opt for C++, rather than the more obvious Java? I suspect that the answer is in the multi-platform ethos of Qt. Quite simply there is an open source C++ compiler available for almost any architecture you can think off, which is not the case for Java, especially in the mobile arena. Hi, there was no Java available at the time when Qt was created. And when Java came out, the desktop computers were much slower/smaller, so keep on using C++ to create fast native code was a natural choice. Quite the same situation with those small tiny computers we use to put in our pockets today. There is still a need for fast native code if you think in terms like performance or power usage (=battery life). But hey, I am no preacher of the church of C++. If people want to use Python, they should. They only must put everything needed inside their app. BR. Sven ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] python development
Hi Sven I have just done some digging into the history of Java and Qt, and was surprised to find that Qt is longer in the tooth than I had thought. Interestingly both Qt and Java emerged at roughly the same time. Trolltech [1] starting to write Qt in 1991. The earliest date I can find for a release [2] is 1998 for 1.4.0 Java [3] development also started in 1991, and was first released in 1995. Thus at the start of Qt development, Java was either not available at all, or at best just a promise of things to come, and very far from the obvious choice that it might seem today. Chris [1] http://en.wikipedia.org/wiki/Trolltech [2] http://no.wikipedia.org/wiki/Qt [3] http://en.wikipedia.org/wiki/Java_(programming_language) Zitat von Sven Putze sailfish...@hardcodes.de: The interesting question is, why did the original creators of Qt opt for C++, rather than the more obvious Java? I suspect that the answer is in the multi-platform ethos of Qt. Quite simply there is an open source C++ compiler available for almost any architecture you can think off, which is not the case for Java, especially in the mobile arena. Hi, there was no Java available at the time when Qt was created. And when Java came out, the desktop computers were much slower/smaller, so keep on using C++ to create fast native code was a natural choice. Quite the same situation with those small tiny computers we use to put in our pockets today. There is still a need for fast native code if you think in terms like performance or power usage (=battery life). But hey, I am no preacher of the church of C++. If people want to use Python, they should. They only must put everything needed inside their app. BR. Sven ___ SailfishOS.org Devel mailing list ___ SailfishOS.org Devel mailing list
