Printing dots in single-line

[Guest]

Hey there,

I want to print some dots in a single-line while my program loads or does
something. I tried with he following but it didn't work :(.

while 1:
print '.',

Prints line of dots separated by a whitespace (. . . . . . etc). Is there a
way I can get it to display them without that white space (.......etc)?

Thanks

[Jay O'Connor]

Re: Printing dots in single-line

On Thu, 13 Nov 2003 12:22:01 -0300, <trofer@nic.nac .wdyn.de> wrote:
[color=blue]
>Hey there,
>
>I want to print some dots in a single-line while my program loads or does
>something. I tried with he following but it didn't work :(.
>
>while 1:
> print '.',
>
>Prints line of dots separated by a whitespace (. . . . . . etc). Is there a
>way I can get it to display them without that white space (.......etc)?[/color]

import sys

while 1:
sys.stdout.writ e(".")

[Bob Gailer]

Re: Printing dots in single-line

At 08:22 AM 11/13/2003, trofer@nic.nac. wdyn.de wrote:
[color=blue]
>Hey there,
>
>I want to print some dots in a single-line while my program loads or does
>something. I tried with he following but it didn't work :(.
>
>while 1:
> print '.',
>
>Prints line of dots separated by a whitespace (. . . . . . etc). Is there a
>way I can get it to display them without that white space (.......etc)?[/color]

Try (depending on the output device)
while 1:
print '.\b',

Bob Gailer
bgailer@alum.rp i.edu
303 442 2625


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[Erik Max Francis]

Re: Printing dots in single-line

Bob Gailer wrote:
[color=blue]
> At 08:22 AM 11/13/2003, trofer@nic.nac. wdyn.de wrote:
>[color=green]
> > Prints line of dots separated by a whitespace (. . . . . . etc). Is
> > there a
> > way I can get it to display them without that white space
> > (.......etc)?[/color]
>
> Try (depending on the output device)
> while 1:
> print '.\b',[/color]

A _far_ superior solution would be to simply not print the trailing
spaces in the first place:

while True:
sys.stdout.writ e('.')
sys.stdout.flus h()

--
Erik Max Francis && max@alcyone.com && http://www.alcyone.com/max/
__ San Jose, CA, USA && 37 20 N 121 53 W && &tSftDotIotE
/ \
\__/ Love is like war: easy to begin but very hard to stop.
-- H.L. Mencken

[Duncan Booth]

Re: Printing dots in single-line

Bob Gailer <bgailer@alum.r pi.edu> wrote in
news:mailman.77 9.1069023820.70 2.python-list@python.org :
[color=blue][color=green]
>>while 1:
>> print '.',
>>
>>Prints line of dots separated by a whitespace (. . . . . . etc). Is
>>there a way I can get it to display them without that white space
>>(.......etc )?[/color]
>
> Try (depending on the output device)
> while 1:
> print '.\b',[/color]

Yuck.

Either suppress the whitespace:

import sys
for i in range(10):
sys.stdout.soft space=False
print '.',

or, much simpler, just don't use print:

for i in range(10):
sys.stdout.writ e('.')

The reason I say that 'write' is simpler is that the softspace attribute
works in a slightly confusing manner. You have to set it false every time
before you print something if you don't want Python putting a leading space
before the string it outputs. It gets sets true after each item that is
printed unless a newline has just been output.

--
Duncan Booth duncan@rcp.co.u k
int month(char *p){return(1248 64/((p[0]+p[1]-p[2]&0x1f)+1)%12 )["\5\x8\3"
"\6\7\xb\1\x9\x a\2\0\4"];} // Who said my code was obscure?

[Stephen Ferg]

Re: Printing dots in single-line

This is the 4th gotch on my Python gotchas page:

http://www.ferg.org/projects/python_gotchas.html

[Alok Singhal]

Re: Printing dots in single-line

On Thu, 13 Nov 2003 12:22:01 -0300, trofe wrote:
[color=blue]
> Hey there,
>
> I want to print some dots in a single-line while my program loads or
> does something. I tried with he following but it didn't work :(.
>
> while 1:
> print '.',
>
> Prints line of dots separated by a whitespace (. . . . . . etc). Is
> there a way I can get it to display them without that white space
> (.......etc)?[/color]

print('.' * n)

where n is the number of dots you want to print.

Incidentally, I saw other responses, and most of them suggest
sys.stdout.writ e(). Is there a reason that is preferable over the
solution above?

Alok

[Rainer Deyke]

Re: Printing dots in single-line

Alok Singhal wrote:[color=blue]
> Incidentally, I saw other responses, and most of them suggest
> sys.stdout.writ e(). Is there a reason that is preferable over the
> solution above?[/color]

Yes: the print statement is an abomination. It is a special-case syntax for
a task that requires no special syntax, and will hopefully be deprecated in
the future, the sooner the better.

It is also not as general as sys.stdout.writ e. It may be important that the
dots are printed in separate statements. For example, the dots could be
used as a progress indicator.


--
Rainer Deyke - rainerd@eldwood .com - http://eldwood.com

[Jay O'Connor]

Re: Printing dots in single-line

Alok Singhal wrote:
[color=blue]
>On Thu, 13 Nov 2003 12:22:01 -0300, trofe wrote:
>
>
>[color=green]
>>Hey there,
>>
>>I want to print some dots in a single-line while my program loads or
>>does something. I tried with he following but it didn't work :(.
>>
>>while 1:
>> print '.',
>>
>>Prints line of dots separated by a whitespace (. . . . . . etc). Is
>>there a way I can get it to display them without that white space
>>(.......etc )?
>>
>>[/color]
>
>print('.' * n)
>
>where n is the number of dots you want to print.
>
>Incidentally , I saw other responses, and most of them suggest
>sys.stdout.wri te(). Is there a reason that is preferable over the
>solution above?
>
>[/color]

The solution you give will not work when you want to do processing
between each dot.

[Paul Rubin]

Re: Printing dots in single-line

"Rainer Deyke" <rainerd@eldwoo d.com> writes:[color=blue]
> Yes: the print statement is an abomination. It is a special-case syntax for
> a task that requires no special syntax, and will hopefully be deprecated in
> the future, the sooner the better.[/color]

Are you kidding? The example I keep asking about is the addition
operator (+). Why does anyone need to say 2+2 when they can say
2-(-2)? The addition operator is a special case syntax for the
subtraction operator where none is needed. Should we deprecate it?
I'd rather say that a practical language needs to make concessions to
the way users actually think.

[Jay O'Connor]

Re: Printing dots in single-line

Paul Rubin wrote:
[color=blue]
>"Rainer Deyke" <rainerd@eldwoo d.com> writes:
>
>[color=green]
>>Yes: the print statement is an abomination. It is a special-case syntax for
>>a task that requires no special syntax, and will hopefully be deprecated in
>>the future, the sooner the better.
>>
>>[/color]
>
>Are you kidding? The example I keep asking about is the addition
>operator (+). Why does anyone need to say 2+2 when they can say
>2-(-2)? The addition operator is a special case syntax for the
>subtraction operator where none is needed. Should we deprecate it?
>I'd rather say that a practical language needs to make concessions to
>the way users actually think.
>
>[/color]


Well, okay then :) Personally, print bothers me because there is no
receiver. As an OO developer, I'm used to thinking usually iin terms of
"object.met hod" and the fact that print is just sorta this standalone
thing out there with no receiver doesn't match the way I think.
However, it's not really a function either as it doesn't use function
syntax. It's just sorta there. It really doesn't fit in with any of the
basic idioms I use when thinking about developing software

[Michael Hudson]

Re: Printing dots in single-line

"Rainer Deyke" <rainerd@eldwoo d.com> writes:
[color=blue]
> Alok Singhal wrote:[color=green]
> > Incidentally, I saw other responses, and most of them suggest
> > sys.stdout.writ e(). Is there a reason that is preferable over the
> > solution above?[/color]
>
> Yes: the print statement is an abomination.[/color]

Says you.

I mean, just take a look at Joe Strout's brilliant little "python
for beginners" page. Replace all print-statements with
sys.stdout.writ e( string.join(map (str, args)) + "\n") and you
surely won't get any new beginners. And That Would Be A Very Bad
Thing.
-- Fredrik Lundh, 27 Aug 1996

Cheers,
mwh

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I have a feeling that some of the people in here have a
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