[Rd] Where to drop a python script?

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Oct 31 08:01:06 CET 2013

On 31/10/2013 00:40, Paul Gilbert wrote:
> The old convention was that it went in the exec/ directory, but as you
> can see at
> http://cran.at.r-project.org/doc/manuals/r-devel/R-exts.html#Non_002dR-scripts-in-packages
>   it can be in inst/anyName/. A minor convenience of exec/ is that the
> directory has the same name in source and when installed, whereas
> inst/anyName gets moved to anyName/, so debugging can be a tiny bit
> easier with exec/.
> Having just put a package (TSjson) on CRAN with a python script, here
> are a few other pointers for getting it on CRAN:
> -SystemRequirements: should indicate if a particular version of python
> is needed, and any non-default modules that are needed. (My package does
> not work with Python 3 because some modules are not available.) Some of
> the libraries have changed, so it could be a bit tricky to make
> something work easily with both 2 and 3.
> -You need a README to explain how to install Python. (If you look at or
> use mine, please let me know if you find problems.)

Better to describe exactly what you need: installation instructions go 
stale very easily.

> -The Linux and Sun CRAN test machines have Python 2 whereas winbuilder
> has Python 3. Be prepared to explain that the package will not work on
> one or the other.

Not true.  Linux and Solaris (sic) have both: the Solaris machines have 
2.6 and 3.3.  Please do not spread misinformation about machines you do 
not have any access to.

> Another option to system() is pipe()
> Paul
> On 13-10-30 03:15 PM, Dirk Eddelbuettel wrote:
>> On 30 October 2013 at 13:54, Jonathan Greenberg wrote:
>> | R-developers:
>> |
>> | I have a small python script that I'd like to include in an R
>> package I'm
>> | developing, but I'm a bit unclear about which subfolder it should go
>> in.  R
>> | will be calling the script via a system() call.  Thanks!
>> Up to you as you control the path. As "Writing R Extensions" explains,
>> everything below the (source) directory inst/ will get installed.  I like
>> inst/extScripts/ (or similar) as it denotes that it is an external
>> script.
>> As an example, the gdata package has Perl code for xls reading/writing
>> below a
>> directory inst/perl/ -- and I think there are more packages doing this.
>> Dirk
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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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