On Apr 29, 6:24 am, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Mon, Apr 28, 2008 at 8:25 PM, schmmd <[EMAIL PROTECTED]> wrote:
Hi,
> > Sage has poor support for filenames that contain a space. For
> > example, if you type `mkdir a\ e', which will create a directory named
> > "a e" in bash, SAGE provides the not-so-friendly error:
The file system underneath Sage is for now a Unix file system which
uses "space" as a separator. It is generally a bad idea to use
anything non [a-zA-Z0-9] in file names since it will likely break with
other encodings and/or file systems. Windows introduced the rather
stupid concept that allows file system path to contain spaces and it
has broken numerous tools like the autotools for example. Having
spaces or any other characters in file names is something you do not
do and I personally see no reason why we should work around that
limitation.
> As a workaround you might want to put an ! at the beginning of all lines that
> will be sent to the shell. E.g.,
>
> sage: mkdir a\ e
>
> -- William
>
>
>
>
>
> > sage: mkdir a\ e
> > sh: -c: line 0: syntax error near unexpected token `('
> > sh: -c: line 0: `LD_LIBRARY_PATH=$SAGE_ORIG_LD_LIBRARY_PATH;mkdir
> > a._backslash_( e)'
>
> > You must type `mkdir "a e"'. This is even more confusing with cd. If
> > you have a directory named "banana float" and then type `cd banana'
> > and hit tab, sage will complete the command as follows:
>
> > sage: cd banana
> > sage: cd banana\ float
>
> > However, this command will once again only produce whine:
>
> > sage: cd banana\ float
> > [Errno 2] No such file or directory: 'banana._backslash_( float)'
> > /home/michael
>
> > You may type `cd banana float' or `cd "banana float"', even though
> > this is not what sage's autocompletion suggests. There are also
> > errors when cd-ing to a directory that contains a number in its name.
>
> > sage: cd sage-3.0/
> > [Errno 2] No such file or directory: 'sage-RealNumber(3.0)/'
> > /opt
The likely issue here is that the preparser gets a hold of 3.0 and
turns it into a RealNumer(3.0). Just enclosed the path you want to cd
into with quotes and it does work:
sage: mkdir "3.0"
sage: cd "3.0"
/home/mabshoff/3.0
sage:
> > Sage will, however, still autocomplete without quotes.
Yes, I would guess ipython is a little too clever for its own regard
here.
Cheers,
Michael
> --
> William Stein
> Associate Professor of Mathematics
> University of Washingtonhttp://wstein.org
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