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In Python, if I return inside a “with” block, will the file still close?
...e the finally block after a try block, i.e. it always executes (unless the python process terminates in an unusual way of course).
It is also mentioned in one of the examples of PEP-343 which is the specification for the with statement:
with locked(myLock):
# Code here executes with myLock hel...
sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
... If you need the same script to work on both macOS (OS X, BSD) and Linux et al, then you must use a backup suffix (e.g. .bak) and you must attach it to the -i option — sed -i.bak …. If you don't do this, the script will not operate correctly on one of the two platforms. GNU sed does no...
How to use the pass statement?
I am in the process of learning Python and I have reached the section about the pass statement. The guide I'm using defines it as being a Null statement that is commonly used as a placeholder.
...
Python: Append item to list N times
This seems like something Python would have a shortcut for. I want to append an item to a list N times, effectively doing this:
...
What are the main uses of yield(), and how does it differ from join() and interrupt()?
...e section on thread scheduling for more
information on timeslices.)
Linux
Under Linux, Hotspot simply calls sched_yield(). The consequences of
this call are a little different, and possibly more severe than under
Windows:
a yielded thread will not get another slice of CPU unt...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...直接在介绍AFNetworking的时候详解吧。
25.使用NSURLConnection下载数据
1. 创建对象
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]];
[NSURLConnection connectionWithRequest:request delegate:self];
2. NSURLCon...
How do I calculate percentiles with python/numpy?
...
By the way, there is a pure-Python implementation of percentile function, in case one doesn't want to depend on scipy. The function is copied below:
## {{{ http://code.activestate.com/recipes/511478/ (r1)
import math
import functools
def percentile(N...
Bundler: Command not found
...
For Arch Linux, use export PATH=$PATH:~/.gem/ruby/2.0.0/bin (adjust for your version of Ruby)
– Kostas Maragos
Aug 1 '13 at 15:03
...
Find closing HTML tag in Sublime Text
...
Thanks! Control + Alt + J works in Linux as well (tested under Linux Mint 14, Sublime Text 3)
– José Tomás Tocino
Apr 24 '14 at 16:07
...
Is there a simple way to remove multiple spaces in a string?
... 1000)
test_string = 'The fox jumped over\n\t the log.' # trivial
Python 2.7.3, 32-bit, Windows
test | minum | maximum | average | median
---------------------+------------+------------+------------+-----------
while_replace_test | 0.001066 | 0.001260 | ...