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How to execute file I'm editing in Vi(m)
... placeholder for the current file name. For example, if you were editing a python script:
:set makeprg=python\ %
Yes, you need to escape the space. After this you can simply run:
:make
If you wish, you can set the autowrite option and it will save automatically before running the makeprg:
:se...
Android应用内存泄露分析、改善经验总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...性能问题，分析和改善有必要遵循以下原则：
一切看数据说话，不能跟着感觉走，感觉哪有问题就去改，很有可能会适得其反；
性能优化是一个持续的过程，需要不断地改善，不要想着一气呵成；
对于性能问题，不...
Generating statistics from Git repository [closed]
... GitStats (git history statistics generator) mentioned by xyld, written in Python and requiring Gnuplot for graphs, there is also
gitstat (SourceForge) project (web-based git statistics interface), written in PHP and Perl,
Git Statistics, aka gitstats (metrics framework designed to gather statistic...
What is the syntax rule for having trailing commas in tuple definitions?
...
It's optional: see the Python wiki.
Summary: single-element tuples need a trailing comma, but it's optional for multiple-element tuples.
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How can I remove an element from a list?
... interest=c("reading","music","movies"),
lang=list(r=2,csharp=4,python=3)),
p2=list(name="James",age=25,
interest=c("sports","music"),
lang=list(r=3,java=2,cpp=5)),
p3=list(name="Penny",age=24,
interest=c("movies","reading"),
lang=list(r=1,cpp=4,python=2)))...
Shell - How to find directory of some command?
...or if it is a built-in command, using the where command e.g.:
tcsh% where python
/usr/local/bin/python
/usr/bin/python
tcsh% where cd
cd is a shell built-in
/usr/bin/cd
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How to customize a requirements.txt for multiple environments?
...nt configuration in two files (Pipfile and Pipfile.lock). Heroku's current Python buildpack natively supports pipenv and will configure itself from Pipfile.lock if it exists instead of requirements.txt.
See the pipenv link for full documentation of the tool.
...
Get list from pandas DataFrame column headers
...posted so far, so I'll just leave this here.
Extended Iterable Unpacking (python3.5+): [*df] and Friends
Unpacking generalizations (PEP 448) have been introduced with Python 3.5. So, the following operations are all possible.
df = pd.DataFrame('x', columns=['A', 'B', 'C'], index=range(5))
df
...
How to convert local time string to UTC?
...ing .utcnow() or .utcfromtimestamp(xxx). As you've presumably moved on to python3,you should be using timezone aware datetime objects.
>>> from datetime import timezone
>>> dt_now = datetime.now(tz=timezone.utc)
>>> dt_ts = datetime.fromtimestamp(1571595618.0, tz=timezone...
VS2005混合编译ARM汇编代码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，需要直接通过编写ARM汇编指令让CPU直接对Memory进行读写数据。
以前没有用VS2005编写过汇编代码，所以走了点弯路，一直试图用内嵌汇编的方式来build，可恨的VS2005死活不认ARM指令，后来请出google大神一搜，原来这条路已经...