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How do I loop through a list by twos? [duplicate]
... simplest in my opinion is just this:
it = iter([1,2,3,4,5,6])
for x, y in zip(it, it):
print x, y
Out: 1 2
3 4
5 6
No extra imports or anything. And very elegant, in my opinion.
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Convert from ASCII string encoded in Hex to plain ASCII?
...; txt = '7061756c'
>>> ''.join([chr(int(''.join(c), 16)) for c in zip(txt[0::2],txt[1::2])])
'paul'
i'm just having fun, but the important parts are:
>>> int('0a',16) # parse hex
10
>>> ''...
新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...LK优化，接一些日志，小打小闹。从2015年起，我们正式得把实时日志分析作为服务提供给公司的其他部门。今天要给大家分享的是在服务化的道路上，我们的想法，方案和疑问。
服务介绍
随着实时分析技术的发展及成本的降...
How do I get a list of column names from a psycopg2 cursor?
...o values '''
Record = namedtuple("Record", fields)
mappings = dict(zip(fields, obj))
return Record(**mappings)
cur.execute("Select * FROM people")
colnames = [desc[0] for desc in cur.description]
rows = cur.fetchall()
cur.close()
result = []
for row in rows:
result.append(create_rec...
Enable binary mode while restoring a Database from an SQL dump
...
Unzip the file, and then import again.
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What is “pom” packaging in maven?
.... Python doesn't really have artifacts, so simply just wanted to .tar or .zip the python files and push. The repo already had maven integration, so we used <packaging>pom</packaging> designator with the maven assembly plugin to package the python project as a .zip and upload it.
The s...
href image link download on click
...k;
case "exe": $ctype="application/octet-stream"; break;
case "zip": $ctype="application/zip"; break;
case "doc": $ctype="application/msword"; break;
case "xls": $ctype="application/vnd.ms-excel"; break;
case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
c...
Why can't Python find shared objects that are in directories in sys.path?
... available on HP-UX but as the
environment variable SHLIB_PATH, and
on AIX this functionality is through
the variable LIBPATH (with the same
syntax, a colon-separated list).
Update: to set LD_LIBRARY_PATH, use one of the following, ideally in your ~/.bashrc
or equivalent file:
export LD_...
如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升
...s as a generative model vs. discriminative model distinction.
你也可以把这一点看作生成模型和判别模型的差别。
Advantages of some particular algorithms
一些常用算法的优缺点
Advantages of Naive Bayes: Super simple, you’re just doing a bunch of coun...
如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升
...s as a generative model vs. discriminative model distinction.
你也可以把这一点看作生成模型和判别模型的差别。
Advantages of some particular algorithms
一些常用算法的优缺点
Advantages of Naive Bayes: Super simple, you’re just doing a bunch of coun...