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Post-install script with Python setuptools

...from setuptools.command.install import install from subprocess import check_call class PreDevelopCommand(develop): """Pre-installation for development mode.""" def run(self): check_call("apt-get install this-package".split()) develop.run(self) class PreInstallCommand(insta...
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How to capture stdout output from a Python function call?

...ager: from io import StringIO import sys class Capturing(list): def __enter__(self): self._stdout = sys.stdout sys.stdout = self._stringio = StringIO() return self def __exit__(self, *args): self.extend(self._stringio.getvalue().splitlines()) del se...
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Collection that allows only unique items in .NET?

... If all you need is to ensure uniqueness of elements, then HashSet is what you need. What do you mean when you say "just a set implementation"? A set is (by definition) a collection of unique elements that doesn't save element ...
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Adding :default => true to boolean in existing Rails column

... change_column is a method of ActiveRecord::Migration, so you can't call it like that in the console. If you want to add a default value for this column, create a new migration: rails g migration add_default_value_to_show_attribute Then in the migration created: # That's the more generic way t...
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Build Eclipse Java Project from Command Line

...ore.aptBuild It uses the jdt apt plugin to build your workspace automatically. This is also known as a 'Headless Build'. Damn hard to figure out. If you're not using a win32 exe, you can try this: java -cp startup.jar -noSplash -data "D:\Source\MyProject\workspace" -application org.eclipse.jdt....
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How can you profile a Python script?

... Python includes a profiler called cProfile. It not only gives the total running time, but also times each function separately, and tells you how many times each function was called, making it easy to determine where you should make optimizations. You c...
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#ifdef replacement in the Swift language

... After i set the custom flag -DLOCAL, on my #if LOCAl #else #endif, it falls into the #else section. I duplicated the original target AppTarget and rename it to AppTargetLocal & set its custom flag. – Perwyl Liu Jul 20 '16 at 6:48 ...
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efficient circular buffer?

...1] #[10, 11, 3, 8] 3, 11 Class: class circularlist(object): def __init__(self, size, data = []): """Initialization""" self.index = 0 self.size = size self._data = list(data)[-size:] def append(self, value): """Append an element""" if le...
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[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术

..."This is a test"; 或在已定义Unicode应的用程序中 TCHAR * p = _T("This is a test"); 或 LPTSTR p = _T("This is a test"); CString theString = chArray; theString.format(_T("%s"), chArray); theString = p; 2、CString转换成char* 若将CString类转换成char*(LPSTR)类型,常...
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How do I get logs/details of ansible-playbook module executions?

...dd the following lines to your ansible configuration file: [defaults] log_path=/path/to/logfile Ansible will look in several places for the config file: ansible.cfg in the current directory where you ran ansible-playbook ~/.ansible.cfg /etc/ansible/ansible.cfg ...