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How to add property to a class dynamically?
...__get__ tacks on the calling instance as the first argument; in effect, it does this:
def __get__(self, instance, owner):
return functools.partial(self.function, instance)
Anyway, I suspect this is why descriptors only work on classes: they're a formalization of the stuff that powers classes ...
Determining Whether a Directory is Writeable
...hough what Christophe suggested is a more Pythonic solution, the os module does have the os.access function to check access:
os.access('/path/to/folder', os.W_OK) # W_OK is for writing, R_OK for reading, etc.
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When do I use the PHP constant “PHP_EOL”?
...nd the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
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How to complete a git clone for a big project on an unstable connection?
...unning again. Is there some way to have a more failure-resistant git clone download?
18 Answers
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Using Razor, how do I render a Boolean to a JavaScript variable?
How do I render a Boolean to a JavaScript variable in a cshtml file?
6 Answers
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When to choose checked and unchecked exceptions
...uage with checked exceptions), when creating your own exception class, how do you decide whether it should be checked or unchecked?
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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
How do I delete a directory and its entire contents (files and subdirectories) in PHP?
21 Answers
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What does auto&& tell us?
...iding copies) when the original initializer was a modifiable rvalue.
What does this mean as to whether we can or when we can steal resources from var? Well since the auto&& will bind to anything, we cannot possibly try to rip out vars guts ourselves - it may very well be an lvalue or even c...
How to run multiple Python versions on Windows
...thon instance, from the command line, by simply typing python.
What this does under Windows, is to trawl the %PATH% environment variable, checking for an executable, either batch file (.bat), command file (.cmd) or some other executable to run (this is controlled by the PATHEXT environment variabl...
Recursively counting files in a Linux directory
....
wc (short for word count) counts newlines, words and bytes on its input (docs).
-l to count just newlines.
Notes:
Replace DIR_NAME with . to execute the command in the current folder.
You can also remove the -type f to include directories (and symlinks) in the count.
It's possible this comman...