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In Python, how do I create a string of n characters in one line of code?
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This might be a little off the question, but for those interested in the randomness of the generated string, my answer would be:
import os
import string
def _pwd_gen(size=16):
chars = string.letters
chars_len = len(chars)
return str().join(chars[int(ord(c) / 256...
ImportError: No module named matplotlib.pyplot
... installed on your machine, one is the standard python that comes with Mac OSX and the second is the one you installed with ports (this is the one that has matplotlib installed in its library, the one that comes with macosx does not).
/usr/bin/python
Is the standard mac python and since it doesn'...
InputStream from a URL
...ur original code uses FileInputStream, which is for accessing file system hosted files.
The constructor you used will attempt to locate a file named a.txt in the www.somewebsite.com subfolder of the current working directory (the value of system property user.dir). The name you provide is resolved ...
Quickly create a large file on a Linux system
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dd from the other answers is a good solution, but it is slow for this purpose. In Linux (and other POSIX systems), we have fallocate, which uses the desired space without having to actually writing to it, works with most modern disk based file systems, very fast:
For example:
fallocate -l 10G gen...
Keyboard Interrupts with python's multiprocessing Pool
...ever returns, so the interrupt never happens. KeyboardInterrupt should almost certainly interrupt a condition wait.
Note that this doesn't happen if a timeout is specified; cond.wait(1) will receive the interrupt immediately. So, a workaround is to specify a timeout. To do that, replace
res...
pip installing in global site-packages instead of virtualenv
...ne in the virtualenv folder. Here's how I set up Python3 and virtualenv on OS X Mavericks (10.9.1):
30 Answers
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How to check if command line tools is installed
I have a macbook pro with OS X 10.8.2.
XCode is installed. I know this as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is ...
Copy paste text into iOS simulator
...ator's clipboard. They are not the same.
The simulator is simulating an iOS device, with it's own iOS clipboard which apps running on that device (simulator) use via the iOS pup-up select-all/copy/paste UI items.
Completely separate from that: your mac has it's own clipboard and content. The Simu...
Difference between fmt.Println() and println() in Go
... They are more versatile (fmt.Fprint* can report to any io.Writer, such as os.Stdout, os.Stderr, or even a net.Conn type.) and are not implementation specific.
Most packages that are responsible for output have fmt as a dependency, such as log. If your program is going to be outputting anything in ...
Cross compile Go on OSX?
I am trying to cross-compile a go app on OSX to build binaries for windows and linux. I have read everything what I could find on the net. Closest example that I have found has been published on (apart from many unfinished discussions on go-nuts mailing list):
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