Le 23/07/2013 14:39, Jason Swails a écrit :
On Tue, Jul 23, 2013 at 7:42 AM, Vincent Vande Vyvre
<vincent.vandevy...@swing.be <mailto:vincent.vandevy...@swing.be>> wrote:
On Windows a script where de endline are the system line sep, the
files are open with a double line in Eric4, Notepad++ or Gedit but
they are correctly displayed in the MS Bloc-Notes.
Example with this code:
----------------------------------------------
# -*- coding: utf-8 -*-
import os
L_SEP = os.linesep
def write():
strings = ['# -*- coding: utf-8 -*-\n',
'import os\n',
'import sys\n']
with open('writetest.py', 'w') as outf:
for s in strings:
outf.write(s.replace('\n', L_SEP))
I must ask why you are setting strings with a newline line ending only
to replace them later with os.linesep. This seems convoluted compared
to doing something like
def write():
strings = ['#-*- coding: utf-8 -*-', 'import os', 'import sys']
with open('writetest.py', 'w') as outf:
for s in strings:
outf.write(s)
outf.write(L_SEP)
Or something equivalent.
If, however, the source strings come from a file you've created
somewhere (and are loaded by reading in that file line by line), then
I can see a problem. DOS line endings are carriage returns ('\r\n'),
whereas standard UNIX files use just newlines ('\n'). Therefore, if
you are using the code:
s.replace('\n', L_SEP)
in Windows, using a Windows-generated file, then what you are likely
doing is converting the string sequence '\r\n' into '\r\r\n', which is
not what you want to do. I can imagine some text editors interpreting
that as two endlines (since there are 2 \r's). Indeed, when I execute
the code:
>>> l = open('test.txt', 'w')
>>> l.write('This is the first line\r\r\n')
>>> l.write('This is the second\r\r\n')
>>> l.close()
on UNIX and open the resulting file in gedit, it is double-spaced, but
if I just dump it to the screen using 'cat', it is single-spaced.
If you want to make your code a bit more cross-platform, you should
strip out all types of end line characters from the strings before you
write them. So something like this:
with open('writetest.py', 'w') as outf:
for s in strings:
outf.write(s.rstrip('\r\n'))
outf.write(L_SEP)
Hope this helps,
Jason
The '\n' are in the original file.
I've tested these other versions:
-------------------------------
def write():
strings = ['# -*- coding: utf-8 -*-\n',
'import os\n',
'import sys\n']
with open('writetest.py', 'w') as outf:
txt = L_SEP.join([s.rstip() for s in strings]):
outf.write(txt)
------------------------------
-------------------------------
def write():
strings = ['# -*- coding: utf-8 -*-',
'import os',
'import sys']
with open('writetest.py', 'w') as outf:
txt = L_SEP.join( strings):
outf.write(txt)
------------------------------
Las, no changes, always correctly displayed in MS bloc-notes but with
double line in other éditors.
--
Vincent V.V.
Oqapy <https://launchpad.net/oqapy> . Qarte
<https://launchpad.net/qarte> . PaQager <https://launchpad.net/paqager>
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