org/3/library/asyncio.html#module-asyncio] module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] Tornado is available under the Apache License, Version 2.0 [http://www.apache.org/licenses/LICENSE-2.0.html]. This web site and all documentation is licensed under Creative Commons 3.0 [https://creativecommons of a thread. They also make concurrency easier [https://glyph.twistedmatrix.com/2014/02/unyielding.html] to reason about by reducing the number of places where a context switch can happen. Example: async

finishes. #!/usr/bin/env python3 import asyncio import time from datetime import timedelta from html.parser import HTMLParser from urllib.parse import urljoin, urldefrag from tornado import gen, httpclient the URL 'gen.html#tornado.gen.coroutine' becomes 'http://www.tornadoweb.org/en/stable/gen.html'. """ response = await httpclient.AsyncHTTPClient().fetch(url) print("fetched %s" % url) html = response.body remove_fragment(new_url)) for new_url in get_links(html)] def remove_fragment(url): pure_url, frag = urldefrag(url) return pure_url def get_links(html): class URLSeeker(HTMLParser): def __init__(self):

toml 文件中通过 edition = "2024"将其配置为使用 Rust 2024 edition 惯用法。请查 看第一章的 “安装” 部分了解如何安装和升级 Rust。 本书的英文原版 HTML 格式可以在 https://doc.rust-lang.org/stable/book/ 在线阅读；使用 rustup 安装的 Rust 也包含一份英文离线版，运行 rustup docs --book rust-lang.org/install.html 并按照说明安装 Rust。在安 装过程的某个步骤，你会被提示要安装 Visual Studio。它提供了一个链接器和编译程序所需 的原生库。如果你在此步骤需要更多帮助，请访问 https://rust-lang.github.io/rustup/ installation/windows-msvc.html。 本书的余下部分会使用能同时运行于 cmd for more information, see chapter 8 in The Book: html#indexing-into-strings> = help: the trait `SliceIndex` is not implemented for `{integer}`

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}

types in order to enable richer display (HTML, images, etcetera) of objects in environments that support this (e.g. IJulia). For example, we can define formatted HTML display of Polar objects, with superscripts ::MIME"text/html", z::Polar{T}) where {T} = println(io, "Polar{$T} complex number: ", z.r, " e^{", z.Θ, " i}") A Polar object will then display automatically using HTML in in an environment that supports HTML display, but you can call show manually to get HTML output if you want:CHAPTER 12. TYPES 154 julia> show(stdout, "text/html", Polar(3.0,4.0)) Polar{Float64}