On Wed, 2013-10-09 at 16:55 -0400, Steve Waterbury wrote: > Sarvi, > > Kees knows *way* more about this than I do -- I am only a user -- > and I see that he's answered your questions about what the > stuff in the pyjs subdirs is and the roles of pyjampiler, > pyjscompile, and pyjsbuild are. I have provided some more > data based on my experience using pyjs, below ... > > On 10/09/2013 04:16 PM, Sarvi Shanmugham wrote: > > Thanks for the pointer. I had gone through that doc a couple of times > > and still had some questions and hence i asked. > > > > 1. sand boxing > > I use virtualenv for sandboxing and has worked great. infact when > > experimenting with making this work with pip, > > thats what I am doing trying to make install work into a virtualenv > > sandboxed python installation. So I suspect I can make this work > > with virtualenv > > There is no need for sandboxing if you are running pyjsbuild > on the python code you write for translation to javascript -- the > python code you write will never be run by a python interpreter, > so it should never be in any system.path. > > > 2. pyjamas libraries and its replacements for sys and time and stuff. > > If this gets installed to override the standard libraries it will be > > a problem. But from what I can tell, these can be installed > > as pyjs.stdlib.sys/time/etc and when the compile/build script could > > still do their little path magic to work with such an install. > > Atleast thats what I am thinking of doing. Would love to know if this > > has been tried or if there are any pitfalls I should be aware off. > > Again, it makes no sense to install *any* pyjamas libraries -- they are > not intended to be run in a python interpreter. All the "path magic" > is done when bootstrap.py creates 'pyjsbuild' -- after that, all you do > is run pyjsbuild whenever you change something in your app and it > re-generates the javascript for the app. > > > 3. I see pyjs/pyjs/setup.py but I can't seem to get it to work and is > > not documented in INSTALL.txt I only see bootstrap.py > > approaches described. > > To be honest, I have no idea what that setup.py is for -- > I have used pyjs for almost 3 years now and have created > several applications, never having touched that setup.py.
I hadn't noticed it. It has been there for a long time, but is never really used. Forget about this file. > > > 4. I see this setup.py has entry points for sm and translate. i.e. it > > will install commands called sm and translate into /usr/bin > > Can't seem to figure out what their purpose would or if they should be > > eliminated or ignored. > > Maybe one of the developers can explain -- I have no idea. I _think_ spidermonkey is not used anymore (in general). The pysm could probably go to a legacy/ directory (same for pygtkweb). > > > 5. I've tried both pyjscompile, which seems to be for a single file and > > pyjsbuild for a whole suite of files. But not sure what pyjampiler is? > > (Kees explained this.) > I have only used pyjsbuild and contrib/pyjscompressor, which calls > google's javascript "compiler" to compress the pyjs-generated > javascript. It works great -- gets around 50% compression. The pyjampiler comes from someone who wanted to have pyjs without the gwt stuff. It has its own boilerplate and should build stripped down code (no library initiation afaik). I've never used it. > > > 6. Not sure what the role of pgen/ and library/ directories are. Are > > they part of the compiler or are they part of the widget library. > > > > 7. The last thing I am trying to do is to see how I can translate a > > simple helloworld.py program into java script and run using the V8 > > command line interpreter. > > Can't seem to figure out if I should use pyjampiler, pyjscompile or > > pyjsbuild. I've tried them they seem to generating incomplete code as is > > the case of > > pyjscompile or too much more code relating to windows and stuff if I > > used pyjsbuild. Has any one tried compiling a simple helloworld.py > > program, translated > > it into simple javascript and run it inside V8 interpreter as opposed to > > the browser? > > I have never done that. As I say, I have always used pyjsbuild. Its > output directory contains an html file named for the "main" module of > your app, which creates an iframe into which the results of the > "app.onModuleLoad()" call goes. I don't know how to run the generated > javascript in the V8 interpreter but I would be interested in knowing, > if you get that to work. > Have a look at examples/libtest/pyv8test.sh That shows how the pyv8 should be invoked. You might have to use pyjsbuild first, but that could just be a procedure that's stuck in my mind. -- --- You received this message because you are subscribed to the Google Groups "Pyjs.org Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to pyjs-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
