大约有 31,840 项符合查询结果（耗时：0.0430秒） [XML]
Get class that defined method
... if meth.__name__ in cls.__dict__:
return cls
return None
share
|
improve this answer
|
follow
|
...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
... to create a single directory in an existing hierarchy, rsync can do it in one operation. I'm quite a fan of rsync as a much more versatile cp replacement, in fact:
rsync -a myfile /foo/bar/ # works if /foo exists but /foo/bar doesn't. bar is created.
...
Does Python support short-circuiting?
...
>>> def fun(i):
... print "executed"
... return i
...
One can observe the Python's short-circuiting behavior of and, or operators in the following example:
>>> fun(1)
executed
1
>>> 1 or fun(1) # due to short-circuiting "executed" not printed
1
>>>...
Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
... feature in C99. I think the only confusion here has arisen because I mentioned that vararg lists are unsafe immediately after discussing empty parameter lists. This was simply because I imagine someone reading the explanation and then thinking "Oh, I wonder what amazing things I can achieve with th...
How to write very long string that conforms with PEP8 and prevent E501
...newline character. It's not possible to put a line end comment after it if one should be necessary. It is possible to do this with concatenated string constants:
s = ("this is my really, really, really, really, really, really, " # comments ok
"really long string that I'd like to shorten.")
...
Python extending with - using super() Python 3 vs Python 2
...r: global name '__class__' is not defined, and super(self.__class__) is erroneous as well. You must provide an instance as a second argument, which would suggest you need to do super(self.__class__, self), but that is wrong. If Class2 inherits from Class1 and Class1 calls super(self.__class__, self)...
Is there a command to refresh environment variables from the command prompt in Windows?
...n probably be improved.
ADDED
If you need to export the environment from one cmd window to another, use this script (let's call it exportvars.vbs):
Set oShell = WScript.CreateObject("WScript.Shell")
filename = oShell.ExpandEnvironmentStrings("%TEMP%\resetvars.bat")
Set objFileSystem = CreateObjec...
Can I exclude some concrete urls from inside ?
I want some concrete filter to be applied for all urls except for one concrete (i.e. for /* except for /specialpath ).
7...
Integer division: How do you produce a double?
... you can as well do double d = (double) num / denom;... (OK, this one depends on precedence)
– user85421
Jun 30 '10 at 12:25
add a comment
|
...
Adding external library in Android studio
...
How can one do this WITHOUT copying? The library is used by other non-Android projects and is routinely updated. If it copies the source, then changes to the original will not be seen. Isn't that kind of stupid?
...