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Is there a decorator to simply cache function return values?
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Starting from Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typed=False)
Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expen...
Copy to clipboard in Node.js?
...e of node-copy-paste, it calls out to pbcopy/pbpaste (for OSX), xclip (for linux), and clip (for windows).
This module was very helpful when I was doing a lot of work in the REPL for a side project. Needless to say, copy-paste is only a command line utility -- it is not meant for server work.
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How do I write data into CSV format as string (not file)?
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In Python 3:
>>> import io
>>> import csv
>>> output = io.StringIO()
>>> csvdata = [1,2,'a','He said "what do you mean?"',"Whoa!\nNewlines!"]
>>> writer = csv.writer(output, quoting=...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...it too long for a lock.
Caveat: this particular command is a part of util-linux. If you run an operating system other than Linux, it may or may not be available.
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Limitations of Intel Assembly Syntax Compared to AT&T [closed]
...mp;T. Intel syntax is a relatively new addition to it. x86 assembly in the Linux kernel is in AT&T syntax. In the Linux world, it's the common syntax. In the MS world, Intel syntax is more common.
Personally, I hate AT&T syntax. There are plenty of free assemblers (NASM, YASM) along with GA...
Find intersection of two nested lists?
... 16]]
c3 = [[13, 32], [7, 13, 28], [1,6]]
Then here is your solution for Python 2:
c3 = [filter(lambda x: x in c1, sublist) for sublist in c2]
In Python 3 filter returns an iterable instead of list, so you need to wrap filter calls with list():
c3 = [list(filter(lambda x: x in c1, sublist)) fo...
Can I read the hash portion of the URL on my server-side application (PHP, Ruby, Python, etc.)?
... accessing http://localhost:8000/hello?foo=bar#this-is-not-sent-to-server
python -c "import SimpleHTTPServer;SimpleHTTPServer.test()"
Serving HTTP on 0.0.0.0 port 8000 ...
localhost - - [02/Jun/2009 12:48:47] code 404, message File not found
localhost - - [02/Jun/2009 12:48:47] "GET /hello?foo=bar ...
How to concatenate items in a list to a single string?
...rse operation is list.split(" "). Any idea if this is going to be added to Python's methods for lists?
– Wouter Thielen
Aug 23 '15 at 10:02
10
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How to prevent auto-closing of console after the execution of batch file
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Add cmd.exe as a new line below the code you want to execute:
c:\Python27\python D:\code\simple_http_server.py
cmd.exe
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Remove carriage return in Unix
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The simplest way on Linux is, in my humble opinion,
sed -i 's/\r$//g' <filename>
The strong quotes around the substitution operator 's/\r//' are essential. Without them the shell will interpret \r as an escape+r and reduce it to a plain...