[Tutor] long lines in print

[Christian Tismer]

Arne Mueller wrote:
> 
> Hi All,
> 
> is there a chance to split a long python 'statements'
> line into several lines?
> 
> The following statement is far too long for one emacs
> line and I'd line to split it up so that the statement
> becomes more readable. Is there a way to put the list
> of values (hsp.score, hsp.e, hsp.identity) in the next
> line? I mean, that'd collide with python indentation,
> wouldn't it?

The Python indentation rules do only apply for a new 
statement line. If you can manage to continue your statement,
indentation is no problem. Continuation is done by ending
a line with a backslash.

> print 'HSP: score = %f, e = %f, identity = %d\%' % (hsp.score, hsp.e,
> hsp.identity)

print 'HSP: score = %f, e = %f, identity = %d\%' % \
          (hsp.score, hsp.e, hsp.identity)

will do it.
Another way is to build your format string dynamically, like
my_fmt = 'HSP: score = %f, e = %f, identity = %d\%'
print my_fmt % (hsp.score, hsp.e, hsp.identity)

This can sometimes make it easier to change the formatting
of output, especially if you need the same formats in different
lines, maybe with slight modifications.

ciao - chris

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