rpy breaks if a file called "None" is present

[Ivo Timmermans]

Package: python-rpy
Version: 1.0~rc1-6
Severity: normal

> ipython
[...]

In [1]: import rpy
RHOME= /usr/lib64/R
RVERSION= 2.6.2
RVER= 2062
RUSER= None
---------------------------------------------------------------------------
<type 'exceptions.TypeError'>             Traceback (most recent call last)

/home/ivo/<ipython console> in <module>()

/usr/lib/python2.5/site-packages/rpy.py in <module>()
     75 os.environ['RPY_RVERSION']=RVERSION
     76 os.environ['RPY_RVER']=RVER
---> 77 os.environ['RPY_RUSER']=RUSER
     78 
     79 # Push R_HOME into the environment for the R shared library/DLL to pick up

/home/ivo/os.py in __setitem__(self, key, item)
    474                 self.data = environ
    475             def __setitem__(self, key, item):
--> 476                 putenv(key, item)
    477                 self.data[key] = item
    478             def update(self,  dict=None, **kwargs):

<type 'exceptions.TypeError'>: putenv() argument 2 must be string, not None


The problem here is that there is a file called "None" in the current directory of ipython.  rpy_tools's get_R_USER() function checks whether that file exists, and happily returns None if it does.


-- System Information:
Debian Release: lenny/sid
  APT prefers gutsy-updates
  APT policy: (500, 'gutsy-updates'), (500, 'gutsy-security'), (500, 'gutsy')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.22-14-generic (SMP w/2 CPU cores)
Locale: LANG=nl_NL.UTF-8, LC_CTYPE=nl_NL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages python-rpy depends on:
ii  libc6                    2.6.1-1ubuntu10 GNU C Library: Shared libraries
ii  python                   2.5.1-1ubuntu2  An interactive high-level object-o
ii  python-central           0.5.15ubuntu2   register and build utility for Pyt
ii  python-numeric           24.2-8          Numerical (matrix-oriented) Mathem
ii  r-base-core              2.6.2-1gutsy0   GNU R core of statistical computin

python-rpy recommends no packages.

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