Changing environment variables into python variables

[sragsdale at my-deja.com]

I'm writing a script that needs to import environment variables into
python as standard variables.  I.E. if the environment variable USER is
set to 'soren', after my program starts up and does its thing I want
there to be a variable named USER with a value of 'soren'.

I can write this program with little effort in perl:

foreach my $var (keys(%ENV)) {
  my $cmd = "\$".$var." = '".$ENV{$var}."'";
  print $cmd,"\n"; # just to see what I'm doing
  eval($cmd);
}

When I try to write this in python, I have this error:

-------------------------------
import posix
for var in posix.environ.keys():
    command = var+" = \""+posix.environ[var]+"\""
    print command
    eval(command)
-------------------------------
> ./importer.py
Traceback (innermost last):
  File "./importer.py", line 12, in ?
    eval(command)
  File "<string>", line 1
    WF_VC_PLUG_INS = "/usr/local/aw/userconfig/composer/plug-ins"
                   ^
SyntaxError: invalid syntax
-------------------------------

What am I doing wrong here?  How can I, at runtime, define a variable
and assign it a value?


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