Op 2005-03-11, Marcin Ciura schreef [EMAIL PROTECTED]:
Moreover, all of them require creating one or two temporary
objects to hold the entire result. If the programmers use one of
them without qualms, it is only because their mind is warped by
the limitation of print.
Steve Holden wrote:
You could think about teaching them the linelist.append(fn(x)) way,
which then gives you the choice of
.join(linelist) - no gaps
\n.join(lienlist) - one item per line
.join(linelist) - spaces between items.
Sure I will. Next week, when we come to list operations.
Bengt Richter wrote:
BTW, what makes you think any self-respecting scientist wouldn't be insulted
by the idea of your spoon-feeding them a dumbed-down programming equivalent of
See Spot run?
Am I right thinking that your dream 3 R's curriculum starts with
Stately, plump Buck Mulligan and Plya
Marcin Ciura wrote:
None of the more efficient solutions is particularly
straightforward, either:
result = []
for x in seq:
result.append(fn(x))
print ''.join(result)
print ''.join([fn(x) for x in seq])
print
Duncan Booth wrote:
import sys
def nospace(value, stream=None):
'''Suppress output of space before printing value'''
stream = stream or sys.stdout
stream.softspace = 0
return str(value)
I'm teaching Python as the first programming language to non-computer
scientists. Many of the
Marcin Ciura wrote:
Here is a pre-PEP about print that I wrote recently.
Please let me know what is the community's opinion on it.
Cheers,
Marcin
PEP: XXX
Title: Print Without Intervening Space
Version: $Revision: 0.0 $
Author: Marcin Ciura marcin.ciura at polsl.pl
Status: Draft
Larry Bates wrote:
I fail to see why
your proposed solution of:
for x in seq:
print fn(x),,
print
is clearer than:
print ''.join([fn(x) for x in seq])
Thank you for your input. The latter form is fine with me personally,
but you just can't explain it to complete novices. My
On Fri, 11 Mar 2005 10:00:03 -0600, Larry Bates [EMAIL PROTECTED] wrote:
I also don't miss a no-space option on print. I've always believed
that print statements with commas in them were for simple output with
little or no regard for formatting (like for debugging statements).
If I want
I'm against further tinkering with Print on a number
of grounds, not least of which is that it's going
away in Python 3.0. It seems like wasted effort.
I don't see much difficulty with the current behavior:
if you want to get rid of the spaces, there are
alternatives.
I don't buy the novice
Marcin Ciura wrote:
Duncan Booth wrote:
import sys
def nospace(value, stream=None):
'''Suppress output of space before printing value'''
stream = stream or sys.stdout
stream.softspace = 0
return str(value)
I'm teaching Python as the first programming language to non-computer
In view of Duncan's response, which invalidates the premises
of my proposal, I announce the end of its short life. I will
add Duncan's solution to my bag of tricks - thank you!
Marcin
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On Fri, 11 Mar 2005 10:59:16 -0500, Steve Holden [EMAIL PROTECTED] wrote:
Marcin Ciura wrote:
Duncan Booth wrote:
import sys
def nospace(value, stream=None):
'''Suppress output of space before printing value'''
stream = stream or sys.stdout
stream.softspace = 0
return
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