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How to use Python's pip to download and keep the zipped files for a package?
...ommand to download a package (and its dependencies), but keep all of the zipped files that get downloaded (say, django-socialregistration.tar.gz) - is there a way to do that?
...
Print a file's last modified date in Bash
...14
/home/joanne/Dropbox/Comp:2013-05-05
/home/joanne/Dropbox/Comp 150 java.zip:2013-02-11
/home/joanne/Dropbox/Comp 151 Java 2.zip:2013-02-11
/home/joanne/Dropbox/Comp 162 Assembly Language.zip:2013-02-11
/home/joanne/Dropbox/Comp 262 Comp Architecture.zip:2012-12-12
/home/joanne/Dropbox/Comp 345 Im...
构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...放资源给其他进程执行，这样系统的吞吐量不高。
需要把业务进行逻辑的分段，采用异步非阻塞的方式，提高系统的吞吐量。
随着数据量和并发量的增加，读写分离不能满足系统并发性能的要求，需要对数据进行切分，包括...
VC窗口刷新InvalidateRect和UpdateWindow - C/C++ - 清泛网 - 专注C/C++及内核技术
...TIMER消息一样被丢弃，但Windows总是在消息循环空的时候才把WM_PAINT放入其中。
无效区域的坐标并不附带在WM_PAINT消息的参数中，在程序中有其他方法可以获取。WM_PAINT消息只是通知程序有个区域需要更新而已，所以Windows也不会同...
How to take the first N items from a generator or list in Python? [duplicate]
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In my taste, it's also very concise to combine zip() with xrange(n) (or range(n) in Python3), which works nice on generators as well and seems to be more flexible for changes in general.
# Option #1: taking the first n elements as a list
[x for _, x in zip(xrange(n), gen...
Which mime type should I use for mp3
...riation of a mime type for a specific file. I was trying to upload mp3 and zip files with open source php class, that what I have found:
Firefox (mp3): audio/mpeg
Firefox (zip): application/zip
Chrome (mp3): audio/mp3
Chrome (zip): application/octet-stream
Opera (mp3): audio/mp3
Opera (zip):...
Should IBOutlets be strong or weak under ARC?
...ng pointer bug I've experienced:
A UIViewController has a UITextField for zip code. It uses CLLocationManager to reverse geocode the user's location and set the zip code. Here's the delegate callback:
-(void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocat...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
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I'd just use zip:
In [1]: from pandas import *
In [2]: def calculate(x):
...: return x*2, x*3
...:
In [3]: df = DataFrame({'a': [1,2,3], 'b': [2,3,4]})
In [4]: df
Out[4]:
a b
0 1 2
1 2 3
2 3 4
In [5]: df["A1"], ...
Creating dataframe from a dictionary where entries have different lengths
...k]) for k, v in data.items()], axis=1)
Use pandas.DataFrame and itertools.zip_longest
For iterables of uneven length, zip_longest fills missing values with the fillvalue.
The zip generator needs to be unpacked, because the DataFrame constructor won't unpack it.
from itertools import zip_longest
...
Is there an easy way to attach source in Eclipse?
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Up until yesterday I was stuck painstakingly downloading source zips for tons of jars and attaching them manually for every project. Then a colleague turned me on to The Java Source Attacher. It does what eclipse should do - a right click context menu that says "Attach Java Source".
I...