There is https://github.com/JuliaLang/julia/issues/4600 but there was 
recently quite some dicussion on the julia-dev mailing list as well as 
https://github.com/JuliaLang/julia/issues/8014

Cheers,

Tobi

Am Montag, 25. August 2014 16:29:03 UTC+2 schrieb Andrei Zh:
>
> Valentin, thanks for your answer, but it seems like I need to give you 
> some more context (sorry for not mentioning it earlier). I'm trying to 
> repeat my experience of interactive development in languages like Python or 
> Lisp. In these languages I can load some module/file contents to REPL 
> ("__main__" module in Python, "user" namespace in Clojure, etc.) and play 
> around with the code just like if I was "inside" of module under 
> development. E.g. I can modify some function, send new definition to REPL 
> and immediately try it out. I can also import any other 
> modules/packages/namespaces. In Python, for example, being in __main__ 
> (with loaded definitions from target module) I can refer to any other 
> module on PYTHONPATH by its full name. Same thing with Clojure - any 
> namespace on CLASSPATH is available for loading. 
>
> In Julia there's Main module too. I can load some code and play around 
> with it, just like in REPLs of other lanuages. E.g. I can start editor, 
> open some file "linreg.jl", send all its contents to REPL, see how it 
> works, update, reload, etc. Works like a charm... until I try to import 
> another module. 
>
> Unlike Python or Clojure, Julia's module system is decoupled from source 
> files and directory structure. Correct me if I'm wrong, but it seems like 
> there's no way to load module other than include() its source file. At the 
> same time, I cannot include files all here and there. E.g. in example above 
> when I work on module A (from REPL/Main) I cannot include "P.jl", because 
> "P.jl" contains recursive include() of "a.jl", and they just re-include 
> each other endlessly.
>
> So the only way we can make it work is to load module system from the top 
> level ("P.jl") and then refer to other modules with respect to it (e.g. 
> like "using .A" or "import ..U"). It works fine with third party packages, 
> but I find it really frustrating when working on some internal module (e.g. 
> A). 
>
> Thus any tips and tricks on loading modules when working from REPL/Main 
> are welcome. 
>
>
>
> On Sunday, August 24, 2014 5:38:53 PM UTC+3, Valentin Churavy wrote:
>>
>> What you are looking for is described in 
>> http://julia.readthedocs.org/en/latest/manual/modules/#relative-and-absolute-module-paths
>>  
>> <http://www.google.com/url?q=http%3A%2F%2Fjulia.readthedocs.org%2Fen%2Flatest%2Fmanual%2Fmodules%2F%23relative-and-absolute-module-paths&sa=D&sntz=1&usg=AFQjCNFxpHj9YNC1JQ2Aag3qLpF97leT0w>
>>
>> in P.jl you include all your submodules 
>> module P
>>  include("u.jl")
>>  include("a.jl")
>>  include("b.jl")
>>
>>  using .A, .B
>>
>>  export f, g
>> end
>>
>>  u.jl 
>> module U
>>  g() = 5
>>  f() = 6
>> end
>>
>> a.jl and b.jl both lokk like this
>>
>> module A
>>  import ..U
>>
>>  f = U.f
>>  g = U.g
>>
>>  export f, g
>> end
>>
>> so one dot as a prefix looks in the namespace of the current module and 
>> two dots as prefix looks in the namespace of the parent module.
>>
>> Hope that helps
>>
>> On Sunday, 24 August 2014 14:10:58 UTC+2, Andrei Zh wrote:
>>>
>>> Let's say I have following project layout: 
>>>
>>> P.jl that contains module P -- main package module, exposes code from 
>>> a.jl and b.jl
>>> a.jl that contains module A and
>>> b.jl that contains module B -- some domain specific modules
>>> u.jl that contains module U -- util functions
>>>
>>> Now I want to use functions in U from modules A and B. In simplest case 
>>> I would just include("u.jl") inside of a.jl and b.jl, but this way 
>>> functions from U will be defined in both - A and B. So I really want to 
>>> import U, not include u.jl, but I can't do this since u.jl is not on the 
>>> LOAD_PATH (and messing with it manually looks somewhat bad to me).  
>>>
>>> Is there some standard way to tackle it? 
>>>
>>> (Note, that A, B and U are here just for code splitting, other ways to 
>>> do same stuff are ok too.)
>>>
>>

Reply via email to