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How can I delete a newline if it is the last character in a file?
I have some files that I'd like to delete the last newline if it is the last character in a file. od -c shows me that the command I run does write the file with a trailing new line:
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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
...lues
def default_values
self.status ||= 'P' # note self.status = 'P' if self.status.nil? might be safer (per @frontendbeauty)
end
end
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How can I test a Windows DLL file to determine if it is 32 bit or 64 bit? [duplicate]
...e = $ARGV[0];
open(EXE, $exe) or die "can't open $exe: $!";
binmode(EXE);
if (read(EXE, $doshdr, 64)) {
($magic,$skip,$offset)=unpack('a2a58l', $doshdr);
die("Not an executable") if ($magic ne 'MZ');
seek(EXE,$offset,SEEK_SET);
if (read(EXE, $pehdr, 6)){
($sig,$skip,$machine)=u...
Remove empty strings from a list of strings
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If you're that pressed for performance, itertool's ifilter is even faster—>>> timeit('filter(None, str_list)', 'str_list=["a"]*1000', number=100000) 2.3468542098999023; >>> timeit('itertools.ifilter(None, ...
Where is Python's sys.path initialized from?
...al
location on the filesystem based on what the operating system tells
it. If the OS just says "python" is running, it finds itself in $PATH.
It resolves any symbolic links. Once it has done this, the path of
the executable that it finds is used as the value for sys.executable, no ifs,
ands, or buts...
C# “as” cast vs classic cast [duplicate]
I recently learned about a different way to cast. Rather than using
10 Answers
10
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How to check if all of the following items are in a list?
I found, that there is related question, about how to find if at least one item exists in a list:
How to check if one of the following items is in a list?
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jQuery: checking if the value of a field is null (empty)
Is this a good way to check if the value of a field is null ?
7 Answers
7
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Checking if a variable is an integer
Does Rails 3 or Ruby have a built-in way to check if a variable is an integer?
11 Answers
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How to check if one of the following items is in a list?
I'm trying to find a short way to see if any of the following items is in a list, but my first attempt does not work. Besides writing a function to accomplish this, is the any short way to check if one of multiple items is in a list.
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