Problem in using Pulp

[MRAB]

Robert Kern wrote:
> amitsoni.1984 at gmail.com wrote:
> > Thanks, now I am not getting that error, but now I am getting a
> > different error:
> > ---------------------error-------------------------------
> >    GLPK("C:\Documents and
> > Settings\Amit\Desktop\glpk-4.9\glpk-4.9\examples\"").solve(prob)
> >   File "C:\Documents and Settings\Amit\Desktop\pulp\pulp.py", line 114,
> > in solve
> >     return lp.solve(self)
> >   File "C:\Documents and Settings\Amit\Desktop\pulp\pulp.py", line
> > 1740, in solve
> >     status = solver.actualSolve(self)
> >   File "C:\Documents and Settings\Amit\Desktop\pulp\pulp.py", line 188,
> > in actualSolve
> >     raise "PuLP: cannot execute "+self.path
> > PuLP: cannot execute C:\Documents and
> > Settings\Amit\Desktop\glpk-4.9\glpk-4.9\examples"
> > -------------------------------------------------------------
> > can anyone tell me where the problem is? I am using following code.
>
> > GLPK("C:\Documents and
> > Settings\Amit\Desktop\glpk-4.9\glpk-4.9\examples\"").solve(prob)
>
> The last character in that string is a double quote. You don't want that. What
> you want to do is escape all of the backslashes (or use raw strings to avoid the
> escaping altogether). E.g.
>
>    "C:\\Documents and Settings\\Amit\\Desktop\\glpk-4.9\\glpk-4.9\\examples\\"
>
> or
>
>    r"C:\Documents and Settings\Amit\Desktop\glpk-4.9\gplk-4.9\examples\"
>
The second example won't work: you can't have a final backslash in a
raw string!