print there!

[Godwin Burby]

Dear Pythoneer,
I am writing a python script which inserts or updates a database
from a csv file. i've done the functionality. But i would to like to
show the user the current row being inserted or updated in the screen.
This can be done as follows:
print 'c:\godwin\bl.c sv',
for i,row in enumerate(reade r):
# inserts or updates the database
print i,
This displays on the screen as :
c:\godwin\bl.cs v 1 2 3 4 5 6 7 8
^
But i want it to show the above numbers on the same spot denoted by the
carat character. Can it be done with print statement or any other trick?

[Fredrik Lundh]

Re: print there!

Godwin Burby wrote:
[color=blue]
> print 'c:\godwin\bl.c sv',
> for i,row in enumerate(reade r):
> # inserts or updates the database
> print i,
> This displays on the screen as :
> c:\godwin\bl.cs v 1 2 3 4 5 6 7 8
> ^
> But i want it to show the above numbers on the same spot denoted by the
> carat character. Can it be done with print statement or any other trick?[/color]

carriage return is your friend:

filename = 'c:\\godwin\\bl .csv',
for i,row in enumerate(reade r):
# inserts or updates the database
print "\r" + filename, i,
print

</F>

[Godwin Burby]

Re: print there!

i think u've misunderstood my question. Your solution will print on a
new line as below:
c:\godwin\bl.cs v 1
c:\godwin\bl.cs v 2
c:\godwin\bl.cs v 3
But i want this number to diplay their value increase on the same line
on the same sport itself without printing the filename multiple times
on multiple lines:
c:\godwin\bl.cs v
^
If i were to do it in the c language i would use the conio.h and gotxy
function with printf.
printf("c:\\god win\\bl.csv");
for(i=0;i<rows; i++)
{
gotoxy(10,20);
printf("%d",row s+1);
}
Sorry for bothering u again!

[Godwin Burby]

Re: print there!

thanks :) It works beautifully.

[Steven D'Aprano]

Re: print there!

On Tue, 20 Sep 2005 14:06:23 +0200, Fredrik Lundh wrote:
[color=blue]
> Godwin Burby wrote:
>[color=green]
>> print 'c:\godwin\bl.c sv',
>> for i,row in enumerate(reade r):
>> # inserts or updates the database
>> print i,
>> This displays on the screen as :
>> c:\godwin\bl.cs v 1 2 3 4 5 6 7 8
>> ^
>> But i want it to show the above numbers on the same spot denoted by the
>> carat character. Can it be done with print statement or any other trick?[/color]
>
> carriage return is your friend:
>
> filename = 'c:\\godwin\\bl .csv',
> for i,row in enumerate(reade r):
> # inserts or updates the database
> print "\r" + filename, i,
> print[/color]

That may not be enough. You may need to flush the print buffer using
sys.stout.flush ().


--
Steven.

[Fredrik Lundh]

Re: print there!

Godwin Burby wrote:
[color=blue]
> i think u've misunderstood my question. Your solution will print on a
> new line as below:
> c:\godwin\bl.cs v 1
> c:\godwin\bl.cs v 2
> c:\godwin\bl.cs v 3
> But i want this number to diplay their value increase on the same line
> on the same sport itself without printing the filename multiple times
> on multiple lines:[/color]

I think u've misunderstood the answer.

filename = 'c:\\godwin\\bl .csv'
for i,row in enumerate(reade r):
# inserts or updates the database
print "\r" + filename, i, # <-- notice the trailing comma
print

</F>

[davbrow@gmail.com]

Re: print there!

It's possible you will need to run python -u for this to behave as
expected. Otherwise python may buffer the output until it sees a
newline so you only see the last result.

-- David

[Godwin Burby]

Re: print there!

i didn't notice it and i'm really sorry. it works beautifully! thanks
once again :)