On Thursday, March 24, 2011 2:34:02 PM UTC+1, tbc++ wrote: > > > I didn't have much trouble getting things running. Is > > the CLASSPATH really so much different to the PYTHONPATH, > > LD_LIBRARY_PATH or even the plain old PATH itself? > > No, it's not that much different, except python is a bit more smart > about how things are setup. For instance, if you startup script.py > python will not only search PYTHONPATH, but also search the directory > where the python executable lives, as well as the current path. > > On top of that, python (unlike lein, and I guess java as well) prefers > that all modules be installed in the python home directory. So the end > effect is I have been able to write python projects for years, and > only once have had to set the PYTHONPATH variable. > The same goes for LD_LIBRARY_PATH. The only time I've had to set that > variable is when I'm doing something funky like writing a plugin. > > But the issue is, all these IDEs out there don't follow any of these > methods. So if you want to launch clojure with penumbra, not only do > you have to set the CLASSPATH, but you also have to set the -D > variable to point to the native libs. Even when I finally knew how to > set all this up, it still took me about 3 hours to get La Clojure to > recognize it all. And that was after trying and giving up on > Enclojure. > > And don't even try to compare all this to the CLR...the gac, Visual > Studio, and the way the CLR links assemblies means that I've > never...ever...had to set a CLR path. And I program C# for a living. > > I program Java for a living, and I never had to set CLASSPATH (in order to program in Java). In general my experience with Java software is that you unpack it where you want and it works as-is. I also use ABCL in my spare time (a JVM Common Lisp - for the purpose of this discussion, it makes no difference with Clojure). There, when I don't launch my program through Eclipse (which manages the classpath for me), I just put all the jars in a lib/ directory under the project directory and run java -cp ".*:lib/*" ... yes, you have to write a script once, but then you just forget about it.
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