On 2015-11-04 14:39, Steven D'Aprano wrote:
> On Wednesday 04 November 2015 03:56, Tim Chase wrote:
>> Or even more valuable to me:
>>
>> with open(..., newline="strip") as f:
>> assert all(not line.endswith(("\n", "\r")) for line in f)
>
> # Works only on Windows text files.
> def chomp(li
On 4 November 2015 at 03:39, Steven D'Aprano
wrote:
>
> Better would be this:
>
> def chomp(lines):
> for line in lines:
> yield line.rstrip() # remove all trailing whitespace
>
>
> with open(...) as f:
> for line in chomp(f): ...
with open(...) as f:
for line in map(str.rstr
On Wednesday 04 November 2015 03:56, Tim Chase wrote:
> Or even more valuable to me:
>
> with open(..., newline="strip") as f:
> assert all(not line.endswith(("\n", "\r")) for line in f)
# Works only on Windows text files.
def chomp(lines):
for line in lines:
yield line.rstrip(
On 2015-11-03, Tim Chase wrote:
[re. iterating over lines in a file]
> I can't think of more than 1-2 times in my last 10+ years of
> Pythoning that I've actually had potential use for the newlines,
If you can think of 1-2 times when you've been interating over the
lines in a file and wanted to
On 2015-11-03 11:39, Ian Kelly wrote:
> >> because I have countless loops that look something like
> >>
> >> with open(...) as f:
> >> for line in f:
> >> line = line.rstrip('\r\n')
> >> process(line)
> >
> > What would happen if you read a file opened like this without
> > iter
On Tue, Nov 3, 2015 at 11:33 AM, Ian Kelly wrote:
> On Tue, Nov 3, 2015 at 9:56 AM, Tim Chase
> wrote:
>> Or even more valuable to me:
>>
>> with open(..., newline="strip") as f:
>> assert all(not line.endswith(("\n", "\r")) for line in f)
>>
>> because I have countless loops that look som
On Tue, Nov 3, 2015 at 9:56 AM, Tim Chase wrote:
> On 2015-11-03 16:35, Peter Otten wrote:
>> I wish there were a way to prohibit such files. Maybe a special
>> value
>>
>> with open(..., newline="normalize") f:
>> assert all(line.endswith("\n") for line in f)
>>
>> to ensure that all lines en
Tim Chase wrote:
> On 2015-11-03 16:35, Peter Otten wrote:
>> I wish there were a way to prohibit such files. Maybe a special
>> value
>>
>> with open(..., newline="normalize") f:
>> assert all(line.endswith("\n") for line in f)
>>
>> to ensure that all lines end with "\n"?
>
> Or even more
On 2015-11-03 16:35, Peter Otten wrote:
> I wish there were a way to prohibit such files. Maybe a special
> value
>
> with open(..., newline="normalize") f:
> assert all(line.endswith("\n") for line in f)
>
> to ensure that all lines end with "\n"?
Or even more valuable to me:
with open(
Peter Otten writes:
> Jussi Piitulainen wrote:
>> Peter Otten writes:
>>
>>> If a "line" is defined as a string that ends with a newline
>>>
>>> def ends_in_asterisk(line):
>>> return False
>>>
>>> would also satisfy the requirement. Lies, damned lies, and specs ;)
>>
>> Even if a "line" is d
Jussi Piitulainen wrote:
> Peter Otten writes:
>
>> If a "line" is defined as a string that ends with a newline
>>
>> def ends_in_asterisk(line):
>> return False
>>
>> would also satisfy the requirement. Lies, damned lies, and specs ;)
>
> Even if a "line" is defined as a string that comes f
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