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Rails 3 - can't install pg gem

...ur pg-config can be in different locations depending on how you installed postgres. share | improve this answer | follow | ...
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Visibility of global variables in imported modules

... Globals in Python are global to a module, not across all modules. (Many people are confused by this, because in, say, C, a global is the same across all implementation files unless you explicitly make it static.) There are different ways to solve this, depending on your ac...
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(Mac) -bash: __git_ps1: command not found

... On OSX 10.9 with git 1.8.5.3 installed via Homebrew, both git-prompt.sh and git-completion.bash are found in `brew --prefix git`/etc/bash_completion.d/. – dokkaebi Feb 10 '14 at 22:02 ...
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How do I check CPU and Memory Usage in Java?

... @ComputerScientist Because free is actually what is free (post GC) it doesn't show objects waiting for GC. To get MUCH more accurate, run 2 garbage collections before this answer. If you try it with and without GC you will find the post-GC values very consistent but the preGC will ...
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Why is printing to stdout so slow? Can it be sped up?

... logging I decided to look into it and was quite surprised to find that almost all the time spent is waiting for the terminal to process the results. ...
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Objective-C 2.0 Mac和iOS开发实践指南 PDF扫描版 - 文档下载 - 清泛网 - ...

Objective-C 2.0 Mac和iOS开发实践指南 PDF扫描版Objective-C Mac iOS《Objective-C 2.0 Mac和iOS开发实践指南》专门为那些想要学习Objecti Ve-C以便为Mac OS x或iOS编写程序的程序员量身打造。《Objectiv...截图: 《Objective-C 2.0 Mac和iOS开发实践指南...
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How to automate createsuperuser on django?

... This should be the most upvoted (and accepted) answer. – bruno desthuilliers Oct 20 '17 at 10:19 ...
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Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术

...imed out Socket error 10061 - Connection refused Socket error 10064 - Host is down Socket error 10065 - No route to host Socket error 10067 - Too many processes Socket error 10091 - Network subsystem is unavailable Socket error 10092 - WINSOCK.DLL version out of range Socket error 1009...
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Installing pip packages to $HOME folder

Is it possible? When installing pip , install the python packages inside my $HOME folder. (for example, I want to install mercurial , using pip , but inside $HOME instead of /usr/local ) ...
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How to repeat last command in python interpreter shell?

...n startup file import readline import rlcompleter import atexit import os # tab completion readline.parse_and_bind('tab: complete') # history file histfile = os.path.join(os.environ['HOME'], '.pythonhistory') try: readline.read_history_file(histfile) except IOError: pass atexit....