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How do I determine the current operating system with Node.js
...node shell scripts for use when developing on a platform. We have both Mac and Windows developers. Is there a variable I can check for in Node to run a .sh file in one instance and .bat in another?
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Relative paths in Python
... the interactive interpreter
>>> import foo
/Users/jason
foo.py
#and finally, at the shell:
~ % python foo.py
/Users/jason
foo.py
However, I do know that there are some quirks with __file__ on C extensions. For example, I can do this on my Mac:
>>> import collections #note tha...
Is there a Java API that can create rich Word documents? [closed]
...generate a Word document that contains tables, graphs, a table of contents and text. What's a good API to use for this? How sure are you that it supports graphs, ToCs, and tables? What are some hidden gotcha's in using them?
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How to correct TypeError: Unicode-objects must be encoded before hashing?
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To store the password (PY3):
import hashlib, os
password_salt = os.urandom(32).hex()
password = '12345'
hash = hashlib.sha512()
hash.update(('%s%s' % (password_salt, password)).encode('utf-8'))
password_hash = hash.hexdigest()
...
What are some uses of template template parameters?
... all specializations of H.
NOTE: I've been programming c++ for many years and have only needed this once. I find that it is a rarely needed feature (of course handy when you need it!).
I've been trying to think of good examples, and to be honest, most of the time this isn't necessary, but let's co...
Python strftime - date without leading 0?
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Actually I had the same problem and I realized that, if you add a hyphen between the % and the letter, you can remove the leading zero.
For example %Y/%-m/%-d.
This only works on Unix (Linux, OS X), not Windows (including Cygwin). On Windows, you would u...
Programmatically find the number of cores on a machine
...;sysinfo);
int numCPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t len = sizeof(numCPU);
/* set the mib for hw.ncpu */
mib[...
Directory-tree listing in Python
How do I get a list of all files (and directories) in a given directory in Python?
20 Answers
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How to send email from Terminal?
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Go into Terminal and type man mail for help.
You will need to set SMTP up:
http://hints.macworld.com/article.php?story=20081217161612647
See also:
http://www.mactricksandtips.com/2008/09/send-mail-over-your-network.html
Eg:
mail -s "hello" "e...
How can I convert a stack trace to a string?
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Fyi, the package has changed and the class is now at: org.apache.commons.lang3.exception.ExceptionUtils.
– schmmd
Nov 13 '13 at 23:18
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