Separator in print statement

[Peter Otten]

Bertram Scharpf wrote:

> when I write
> 
>     >>> print 'abc', 'def',
>     >>> print 'ghi'
> 
> I get the output 'abc def ghi\n'.
> 
> Is there a way to manipulate the print
> statment that I get for example:
> 
> 'abc, def, ghi\n'
> 
> I mean: can I substitute the ' ' separator produced from
> the comma operator by a e.g. ', ' or something else?

Unfortunately, the delimiter for print is currently hardcoded.
Here's some hackish code that will do what you want (most of the time).

<code>
import sys

class DelimStream(object):
    def __init__(self, stream, delim):
        self.stream = stream
        self.delim = delim
        self._softspace = False
    def _set_softspace(self, b):
        if b:
            self._softspace = True
    def _get_softspace(self):
        return False
    softspace = property(_get_softspace, _set_softspace)
    def write(self, s):
        if self._softspace:
            if s != "\n":
                self.stream.write(self.delim)
            self._softspace = False
        self.stream.write(s)

d = DelimStream(sys.stdout, ", ")

#works most of the time
print >> d, "foolish", "consistency", "hobgoblin", "little", "minds"
print >> d, "seen", "hell", "himmel", "weich"

#but not always:
print "A", "B", "\n", "C"
print >> d, "A", "B", "\n", "C" #note the missing delim before the C :-)


if 1: #not recommended
    sys.stdout = DelimStream(sys.stdout, ", ")
    print "foolish", "consistency", "hobgoblin", "little", "minds"
</code>

Peter