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Difference between os.getenv and os.environ.get
... can specify an alternate default."""
return environ.get(key, default)
File: ~/venv/lib/python2.7/os.py
Type: function
So we can conclude os.getenv is just a simple wrapper around os.environ.get.
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difference between use and require
...eams :only (writer reader)])
or even better, specify it at the top of the file in the namespace definition:
(ns com.me.project
(:use [clojure.contrib.test-is :only (deftest is run-tests)]))
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Google Maps: how to get country, state/province/region, city given a lat/long value?
...s! This collection of lat/long I have are actually associated with user profiles in my database. Do you know how I can implement a search feature that would allow users to find other users within a specified location (e.g. find all users in Brooklyn, NY)? Remember, all I have are lat/longs.
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How do I avoid capturing self in blocks when implementing an API?
...e a #pragma to suppress the warnings for that block of code. (Or use a per-file compiler flag. But don't disable the warning for the whole project.)
You could also look into using a similar trick above, declaring a reference weak or unretained and using that in the block. For example:
__weak MyDat...
Read stream twice
... memory? which could be a big problem if you're loading something like big files?
– jaxkodex
Jan 9 '15 at 14:23
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Install Gem from Github Branch?
In my gemfile I have this:
4 Answers
4
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Difference between Hashing a Password and Encrypting it
...-injections that did not compromise the application code (or configuration files) and I am now of the opinion that adding a secret is helpful, be it in the form of encryption or in the form of a pepper, but it must not replace hashing. For a more complete answer, see here: security.stackexchange.com...
Measuring execution time of a function in C++
...ample, when writing code, I make it convenient for me when it's in the cpp file I am working right now, but when it's time to move it elsewhere I take every necessary steps to make it robust so that I don't have to look at it again. And I think that, every programmer out there who are not complete n...
Why is document.body null in my javascript?
... What if you don't want to override an existing onload defined in another file?
– Tom Brito
May 3 '13 at 22:05
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What is the difference between PS1 and PROMPT_COMMAND
... my things, I've basically put the code for the PROMPT_COMMAND in separate file (as Bob described) and then echo the string that I intend to be PS1:
GREEN="\[\033[0;32m\]"
CYAN="\[\033[0;36m\]"
RED="\[\033[0;31m\]"
PURPLE="\[\033[0;35m\]"
BROWN="\[\033[0;33m\]"
LIGHT_GRAY="\[\033[0;37m\]"
LIGHT_BLU...