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Check if object is file-like in Python
...ave like a real file, e.g. have a read() and a write method(), but have a different implementation. It is and realization of the Duck Typing concept.
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Diff output from two programs without temporary files
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Use <(command) to pass one command's output to another program as if it were a file name. Bash pipes the program's output to a pipe and passes a file name like /dev/fd/63 to the outer command.
diff <(./a) <(./b)
Similarly you can use >(command) if you want to pipe something into...
How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?
Today I had a closer look at the "Specific Version" property of assembly references in Visual Studio 2010. After a few experiments with unexpected results I set out to learn as much as possible about how the property works. Even SO, it appears to me, does not have all the answers, so here is my atte...
Find out if string ends with another string in C++
How can I find out if a string ends with another string in C++?
20 Answers
20
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How to use sed/grep to extract text between two words?
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Thanks! What if I wanted to find everything between "one is" and "String" in "Here is a one is a String"? (sed -e 's/one is(.*)String/\1/' ?
– user1190650
Nov 6 '12 at 0:31
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How to check if std::map contains a key without doing insert?
....second for false , but the problem is that this still inserts something if the key is unused, whereas what I want is a map.contains(key); function.
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Check if a number is int or float
...t;> y = 12.0
>>> isinstance(y, float)
True
So:
>>> if isinstance(x, int):
print 'x is a int!'
x is a int!
_EDIT:_
As pointed out, in case of long integers, the above won't work. So you need to do:
>>> x = 12L
>>> import numbers
>>> isin...
Test if a variable is a list or tuple
In python, what's the best way to test if a variable contains a list or a tuple? (ie. a collection)
13 Answers
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Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
...it, it returns a lot of errors. It seems that I have a problem with my certificate. Is it possible to ignore the client-server authentication? If so, how?
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How to convert array values to lowercase in PHP?
...ap('nestedLowercase', $yourArray);
function nestedLowercase($value) {
if (is_array($value)) {
return array_map('nestedLowercase', $value);
}
return strtolower($value);
}
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