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What is the difference between isinstance('aaa', basestring) and isinstance('aaa', str)?
...and "unicode strings". Plain strings (str) cannot represent characters outside of the Latin alphabet (ignoring details of code pages for simplicity). Unicode strings (unicode) can represent characters from any alphabet including some fictional ones like Klingon.
So why have two kinds of strings, wo...
Running multiple commands in one line in shell
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cp file1 file2 ; cp file1 file3 ; rm file1
If you require that the individual commands MUST succeed before the next can be started, then you'd use && instead:
cp file1 file2 && cp file1 file3 && rm file1
That way, if either of the cp commands fails, the rm will not run....
Gradient of n colors ranging from color 1 and color 2
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Added a link which provides better options for color gradients and hues which work in both color and B&W.
– Anusha
Sep 24 '14 at 15:40
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Signal handling with multiple threads in Linux
...led by root thread. Using POSIX threads, you can also sent SIGTERM to individual threads as well, but I suspect you are asking about what happens when the OS sends the signal to the process.
In 2.6, SIGTERM will cause child threads to exit "cleanly", where as 2.4, child threads were left in an inde...
When do you use Java's @Override annotation and why?
What are the best practices for using Java's @Override annotation and why?
27 Answers
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Actual meaning of 'shell=True' in subprocess
... of the user's choosing and is platform-dependent. Generally speaking, avoid invocations via the shell.
Invoking via the shell does allow you to expand environment variables and file globs according to the shell's usual mechanism. On POSIX systems, the shell expands file globs to a list of files....
A list of indices in MongoDB?
...ation like paddingFactor, size of the collection and number of elements inside of it.
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What is the 'cls' variable used for in Python classes?
...The distinction between "self" and "cls" is defined in PEP 8 . As Adrien said, this is not a mandatory. It's a coding style. PEP 8 says:
Function and method arguments:
Always use self for the first argument to instance methods.
Always use cls for the first argument to class methods.
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Does Git Add have a verbose switch
...44890 git.c:415 trace: built-in: git config --get oh-my-zsh.hide-dirty
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Is $(document).ready necessary?
...o go back and debug old code if you reuse it elsewhere?
off-topic:
As a side note: you should use jQuery(function($){...}); instead of $(document).ready(function(){...}); as it forces the alias to $.
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