bootstrapping

How to Bootstrap numpy installation in setup.py

十年热恋 提交于 2019-11-27 06:54:00
I have a project which has a C extension which requires numpy. Ideally, I'd like whoever downloads my project to just be able to run python setup.py install or use one call to pip . The problem I have is that in my setup.py I need to import numpy to get the location of the headers, but I'd like numpy to be just a regular requirement in install_requires so that it will automatically be downloaded from the Python Package Index. Here is a sample of what I'm trying to do: from setuptools import setup, Extension import numpy as np ext_modules = [Extension('vme', ['vme.c'], extra_link_args=['-lvme']

Spring startup performance issues

时光总嘲笑我的痴心妄想 提交于 2019-11-27 05:11:40
问题 I'm trying to integrate Spring in a pretty large application with thousands of classes, and i'm experiencing huge delays starting my container because of component-scanning. I have already narrowed the number of directories specified in the "base-package", to the minimum in order to reduce the time wasted in scanning irrelevant directories, but the class-path scanning part of initialization still takes about 1-2 mins. So, is there a way to optimize the scanning process ? I've thought of

What is bootstrapping?

僤鯓⒐⒋嵵緔 提交于 2019-11-27 02:28:29
I keep seeing "bootstrapping" mentioned in discussions of application development. It seems both widespread and important, but I've yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don't, though. Near as I can figure, it has something to do with initialization tasks required of an application upon launch, but I could be completely wrong about that. Can anyone help me to understand this idea? "Bootstrapping" comes from the term "pulling yourself up by your own bootstraps." That much you

re-open and add dependencies to an already bootstrapped application

隐身守侯 提交于 2019-11-26 19:04:40
问题 Is there a way to inject a late dependency to an already bootstrapped angular module? Here's what I mean: Say that I have a site-wide angular app, defined as: // in app.js var App = angular.module("App", []); And in every page: <html ng-app="App"> Later on, I'm reopening the app to add logic based on the needs of the current page: // in reports.js var App = angular.module("App") App.controller("ReportsController", ['$scope', function($scope) { // .. reports controller code }]) Now, say that

How to Bootstrap numpy installation in setup.py

纵饮孤独 提交于 2019-11-26 12:11:13
问题 I have a project which has a C extension which requires numpy. Ideally, I\'d like whoever downloads my project to just be able to run python setup.py install or use one call to pip . The problem I have is that in my setup.py I need to import numpy to get the location of the headers, but I\'d like numpy to be just a regular requirement in install_requires so that it will automatically be downloaded from the Python Package Index. Here is a sample of what I\'m trying to do: from setuptools

What is bootstrapping?

五迷三道 提交于 2019-11-26 10:04:21
问题 I keep seeing \"bootstrapping\" mentioned in discussions of application development. It seems both widespread and important, but I\'ve yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don\'t, though. Near as I can figure, it has something to do with initialization tasks required of an application upon launch, but I could be completely wrong about that. Can anyone help me to understand

Bootstrapping still requires outside support

你离开我真会死。 提交于 2019-11-26 02:54:38
I've heard of the idea of bootstrapping a language, that is, writing a compiler/interpreter for the language in itself. I was wondering how this could be accomplished and looked around a bit, and saw someone say that it could only be done by either writing an initial compiler in a different language. hand-coding an initial compiler in Assembly, which seems like a special case of the first To me, neither of these seem to actually be bootstrapping a language in the sense that they both require outside support. Is there a way to actually write a compiler in its own language? Derek Park Is there a

Bootstrapping still requires outside support

不问归期 提交于 2019-11-26 01:12:48
问题 I\'ve heard of the idea of bootstrapping a language, that is, writing a compiler/interpreter for the language in itself. I was wondering how this could be accomplished and looked around a bit, and saw someone say that it could only be done by either writing an initial compiler in a different language. hand-coding an initial compiler in Assembly, which seems like a special case of the first To me, neither of these seem to actually be bootstrapping a language in the sense that they both require

Writing a compiler in its own language

拟墨画扇 提交于 2019-11-26 00:39:46
问题 Intuitively, it would seems that a compiler for language Foo cannot itself be written in Foo. More specifically, the first compiler for language Foo cannot be written in Foo, but any subsequent compiler could be written for Foo . But is this actually true? I have some very vague recollection of reading about a language whose first compiler was written in \"itself\". Is this possible, and if so how? 回答1: This is called "bootstrapping". You must first build a compiler (or interpreter) for your