大约有 19,000 项符合查询结果（耗时：0.0409秒） [XML]
Import a file from a subdirectory?
....org/tutorial/modules.html
In short, you need to put a blank file named
__init__.py
in the "lib" directory.
share
|
improve this answer
|
follow
|
...
Should I use a class or dictionary?
...vantage? What happens if you later want to add some code? Where would your __init__ code go?
Classes are for bundling related data (and usually code).
Dictionaries are for storing key-value relationships, where usually the keys are all of the same type, and all the values are also of one type. Occ...
PHP Get name of current directory
...
getcwd();
or
dirname(__FILE__);
or (PHP5)
basename(__DIR__)
http://php.net/manual/en/function.getcwd.php
http://php.net/manual/en/function.dirname.php
You can use basename() to get the trailing part of the path :)
In your case, I'd say y...
Split data frame string column into multiple columns
...
Use stringr::str_split_fixed
library(stringr)
str_split_fixed(before$type, "_and_", 2)
share
|
improve this answer
|
...
URL encoding the space character: + or %20?
...------------+
https://bob:bobby@www.lunatech.com:8080/file;p=1?q=2#third
\___/ \_/ \___/ \______________/ \__/\_______/ \_/ \___/
| | | | | | \_/ | |
Scheme User Password Host Port Path | | Fragment
\_____________________________/ | Q...
TypeError: module.__init__() takes at most 2 arguments (3 given)
...ample.responses import Response
class GeoJsonResponse(Response):
def __init__(self, geo_json_data):
Looks fine. No problems until you try to debug the thing, which is when you get a bunch of seemingly vague error messages like this:
from pyexample.responses import GeoJsonResponse
..\py...
How to get a reference to current module's attributes in Python
...he way I typically see this done is like this:
import sys
dir(sys.modules[__name__])
share
|
improve this answer
|
follow
|
...
Why does the expression 0 < 0 == 0 return False in Python?
...bool(0) or bool(1) before this thought experiment
– j_syk
May 20 '11 at 15:45
...
Chain-calling parent initialisers in python [duplicate]
...Python 3 includes an improved super() which allows use like this:
super().__init__(args)
share
|
improve this answer
|
follow
|
...
Is there a better way to express nested namespaces in C++ within the header
...ry rare cases in C++ where I actually like the use of #defines.
#define MY_COMPANY_BEGIN namespace MyCompany { // begin of the MyCompany namespace
#define MY_COMPANY_END } // end of the MyCompany namespace
#define MY_LIBRARY_BEGIN namespace MyLibrary { // begin of the MyLib...