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.csv',
for i,row in enumerate(reader):
# inserts or updates the database
print i,
This displays on the screen as :
c:\godwin\bl.csv 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]

print 'c:\godwin\bl.csv',
for i,row in enumerate(reader):
# inserts or updates the database
print i,
This displays on the screen as :
c:\godwin\bl.csv 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?

carriage return is your friend:

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

</F>

 

[Steven D'Aprano]

carriage return is your friend:

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

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

 

[Godwin Burby]

i think u've misunderstood my question. Your solution will print on a
new line as below:
c:\godwin\bl.csv 1
c:\godwin\bl.csv 2
c:\godwin\bl.csv 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.csv
^
If i were to do it in the c language i would use the conio.h and gotxy
function with printf.
printf("c:\\godwin\\bl.csv");
for(i=0;i<rows;i++)
{
gotoxy(10,20);
printf("%d",rows+1);
}
Sorry for bothering u again!

 

[Godwin Burby]

thanks It works beautifully.

 

[Fredrik Lundh]

i think u've misunderstood my question. Your solution will print on a
new line as below:
c:\godwin\bl.csv 1
c:\godwin\bl.csv 2
c:\godwin\bl.csv 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:

I think u've misunderstood the answer.

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

</F>

 

[davbrow]

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]

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