from string import strip
def w2f(self,s,*args,**kws):
    """
        Zope debugging tool.
        Use from anywhere in Zope as an External Method,
        to print things to a file.
        Very useful in Python Scripts or DTML/ZPT where you
        do RESPONSE.redirect for example.

        Call in Python Script like this:

            context.w2f("this part is being used")
        or  context.w2f("this part is being used",pagetitle=context.title_or_id())
        or  context.w2f("this part is being used",reset=1) to make this thing reset
            the debugger file.
        or  context.w2f("this part is being used",stdout="Print to stdout this")
         
         
    """
    printstmt = "Using Write2File module in %s"% self.title_or_id()
    if kws.has_key('stdout'):
        printstmt = kws['stdout']
    print printstmt
    
    fileplace='c:\\peter\\file.txt'


    if kws.has_key('reset'):
        reset=1
    else:
        reset=0

    
    s=str(s)
    for arg in args:
        s=s+'\n%s'%arg
    for k,v in kws.items():
        s=s+'\n%s = %s'%(k,v)

    s=strip(s)


    
    content=""
    if not reset:
        try:
            r=open(fileplace,'r')
            content=r.read()
            r.close()
            del r
        except:pass
    f=open(fileplace,'w')
    f.write('From %s:\n%s\n\n'%(self.title_or_id(),s))
    f.write(content+'\n')
    f.close()
    del f
    return "done"