stripping blanks

[micklee74@hotmail.com]

hi
i have a file test.dat eg

abcdefgh
ijklmn
<-----newline
opqrs
tuvwxyz
<---newline

I wish to print the contents of the file such that it appears:
abcdefgh
ijklmn
opqrs
tuvwxyz

here is what i did:
f = open("test.dat" )
while 1:
line = f.readline().rs trip("\n")
if line == '':
break
#if not re.findall(r'^$ ',line):
print line

but it always give me first 2 lines, ie
abcdefgh
ijklmn

What can i do to make it print all..?
thanks

[seeker]

Re: stripping blanks

micklee74@hotma il.com wrote:[color=blue]
> hi
> i have a file test.dat eg
>
> abcdefgh
> ijklmn
> <-----newline
> opqrs
> tuvwxyz
> <---newline
>
> I wish to print the contents of the file such that it appears:
> abcdefgh
> ijklmn
> opqrs
> tuvwxyz
>
> here is what i did:
> f = open("test.dat" )
> while 1:
> line = f.readline().rs trip("\n")
> if line == '':
> break
> #if not re.findall(r'^$ ',line):
> print line
>
> but it always give me first 2 lines, ie
> abcdefgh
> ijklmn
>
> What can i do to make it print all..?
> thanks
>[/color]
Hi,

this should work better:


f = open("test.dat" )
while 1:
line = f.readline().rs trip("\n")
if line == '':
continue
#if not re.findall(r'^$ ',line):
print line

[seeker]

Re: stripping blanks

micklee74@hotma il.com wrote:[color=blue]
> hi
> i have a file test.dat eg
>
> abcdefgh
> ijklmn
> <-----newline
> opqrs
> tuvwxyz
> <---newline
>
> I wish to print the contents of the file such that it appears:
> abcdefgh
> ijklmn
> opqrs
> tuvwxyz
>
> here is what i did:
> f = open("test.dat" )
> while 1:
> line = f.readline().rs trip("\n")
> if line == '':
> break
> #if not re.findall(r'^$ ',line):
> print line
>
> but it always give me first 2 lines, ie
> abcdefgh
> ijklmn
>
> What can i do to make it print all..?
> thanks
>[/color]

Last suggestion I made was bad. Here is the new one. Hopefully thats
correct.

f = open("test.dat" )
for line in f:
printLine = line.rstrip("\n ")
if not printLine:
continue
print printLine

[Fulvio]

Re: stripping blanks

Alle 17:06, martedì 02 maggio 2006, seeker ha scritto:[color=blue]
>      printLine = line.rstrip("\n ")[/color]

I think that nobody considered if the text has (\r) or (\r\n) or (\n) at the
end of the line(s).

[Duncan Booth]

Re: stripping blanks

Fulvio wrote:
[color=blue]
> Alle 17:06, martedì 02 maggio 2006, seeker ha scritto:[color=green]
>>      printLine = line.rstrip("\n ")[/color]
>
> I think that nobody considered if the text has (\r) or (\r\n) or (\n)
> at the end of the line(s).
>[/color]
You think wrongly.

The suggested code opens the file in text mode so the line endings are
automatically normalised to '\n'.

[Fredrik Lundh]

Re: stripping blanks

Fulvio wrote:
[color=blue][color=green]
> > printLine = line.rstrip("\n ")[/color]
>
> I think that nobody considered if the text has (\r) or (\r\n) or (\n) at the
> end of the line(s).[/color]

if it's opened in text mode (the default), and is a text file, it will
always have "\n" at the end of the line.

</F>

[Scott David Daniels]

Re: stripping blanks

seeker wrote:
[color=blue]
> Last suggestion I made was bad. Here is the new one. Hopefully thats
> correct.
>
> f = open("test.dat" )
> for line in f:
> printLine = line.rstrip("\n ")
> if not printLine:
> continue
> print printLine[/color]

A little better:

f = open("test.dat" )
for line in f:
printLine = line.rstrip("\n ")
if printLine:
print printLine

--Scott David Daniels
scott.daniels@a cm.org

[Edward Elliott]

Re: stripping blanks

Scott David Daniels wrote:[color=blue]
> A little better:
>
> f = open("test.dat" )
> for line in f:
> printLine = line.rstrip("\n ")
> if printLine:
> print printLine[/color]

[sys.stdout.writ e(line) for line in open('test.dat' ) if line.rstrip('\n ')]

Where's my prize? What do you mean, shorter isn't always better? ;)