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RE error: illegal byte sequence on Mac OS X
I'm trying to replace a string in a Makefile on Mac OS X for cross-compiling to iOS. The string has embedded double quotes. The command is:
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Split data frame string column into multiple columns
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Use stringr::str_split_fixed
library(stringr)
str_split_fixed(before$type, "_and_", 2)
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What are five things you hate about your favorite language? [closed]
...quivalent to using eval() and so hideously wrong I have never used it (see http://www.php.net/create_function).
3) A try/catch system which can only catch about 80% of errors that might occur.
4) Regex support just as lame as lambda support because it has to be written inside regular strings, maki...
Dynamic instantiation from string name of a class in dynamically imported module?
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You can use getattr
getattr(module, class_name)
to access the class. More complete code:
module = __import__(module_name)
class_ = getattr(module, class_name)
instance = class_()
As mentioned below, we may use importlib
import importlib
module = importlib.imp...
Quora如何在快速开发中保持高品质代码 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...者：Quora工程主管Nikhil Garg原文链接：https: engineering.quora.com Moving-Fast-With-High-Code-Quality译者：张婉莹高质量的代码...作者：Quora工程主管Nikhil Garg
原文链接：https://engineering.quora.com/Moving-Fast-With-High-Code-Quality
译者：张婉莹
高...
How do I declare class-level properties in Objective-C?
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stackoverflow.com/questions/554969/…
– Undistraction
May 8 '12 at 19:42
60
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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
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Chain-calling parent initialisers in python [duplicate]
...Python 3 includes an improved super() which allows use like this:
super().__init__(args)
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Java Reflection: How to get the name of a variable?
...ormation is available through reflection. See the "Update" section below.
Complete information is often stored in class files. One compile-time optimization is to remove it, saving space (and providing some obsfuscation). However, when it is is present, each method has a local variable table attrib...
Python multiprocessing pool.map for multiple arguments
... function:
import multiprocessing
from itertools import product
def merge_names(a, b):
return '{} & {}'.format(a, b)
if __name__ == '__main__':
names = ['Brown', 'Wilson', 'Bartlett', 'Rivera', 'Molloy', 'Opie']
with multiprocessing.Pool(processes=3) as pool:
results = poo...