packages

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Can someone explain or point out resources where I can read how Android app upgrades actually work on an OS level of detail? 回答1: From the package manager logs,it seems following steps are taken for upgrade: 1) Download the package at temporary location. act=android.intent.action.PACKAGE_NEEDS_VERIFICATION dat=file:///data/app/vmdl1854135520.tmp typ=application/vnd.android.package-archive 2) Do package verification. 06-30 17:59:02.751 3701 3751 D PackageManager: [MSG] PACKAGE_VERIFIED: observer{237546897} 3) Rename the package. 06-30 17:59

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have an very simple ASP.NET vNext just wanted to be a static file server. I had used kvm upgrade to install the latest version and below is my project.json . { "dependencies" : { "Helios" : "0.1-alpha-*" , "Microsoft.AspNet.FileSystems" : "0.1-alpha-*" , "Microsoft.AspNet.Http" : "0.1-alpha-*" , "Microsoft.AspNet.StaticFiles" : "" }, "commands" : { "web" : "Microsoft.AspNet.Hosting server=Microsoft.AspNet.Server.WebListener server.urls=http://localhost:22222" }, "configurations" : { "net45" : { }, "k10" : { "System.Diagnostics

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm current attempting to install packages in a python-3.4 virtualenv and I keep getting these Retry/TimeoutErrors. (backend)root@XXXX:/var/virtualenvs# pip3 install -r backend-freeze.txt Collecting cassandra-driver==2.7.2 (from -r backend-freeze.txt (line 1)) Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f4d7faf94a8>, 'Connection to pypi.python.org timed out. (connect timeout=15)')':

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I recently switched to the Anaconda Python distribution and I'm trying to get the hang of things. I wanted to install this yaml-related package and since there isn't already a conda recipe for it, I tried conda pipbuild layered-yaml-attrdict-config which resulted in the following output (I removed non-relevant entries of my system path): C:\Anaconda>conda install layered-yaml-attrdict-config Fetching package metadata: .. Error: No packages found matching: layered-yaml-attrdict-config C:\Anaconda>conda pipbuild layered-yaml-attrdict-config

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've been creating PDF reports via RMarkdown for a couple months now, but after installing MikTex, R and the rmarkdown and tidyverse packages on a new machine today, I received the following error message when attemping to knit a PDF: "C:/PROGRA~2/Pandoc/pandoc" +RTS -K512m -RTS Test.utf8.md --to latex --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output test.pdf --template "C:\Users\drewm\Documents\R\win-library\3.4\rmarkdown\rmd\latex\default-1.17.0.2.tex" --highlight-style tango --latex-engine xelatex -

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I had everything working with R and RStudio, but then I moved the folders when cleaning up my computer directories & files. Now I'm getting the error message below. Should R and RStudio be installed under Program Files or Program Files (x86) ? Should I have two libPaths ? install.packages("C:/Users/kevin/Downloads/fpp_0.5.zip", repos = NULL) ## Warning in install.packages : ## package ‘C:/Users/kevin/Downloads/fpp_0.5.zip’ ## is not available (for R version 3.0.0) ## Installing package into ‘C:/Users/kevin/Documents/R/win-library/3.0’ ## (as

1 添加Sublime-text-3软件包的软件源 sudo add-apt-repository ppa:webupd8team/sublime-text-3 2 使用以下命令更新系统软件源 sudo apt-get update 3 使用以下命令安装Sublime-text-3 sudo apt-get install sublime-text-installer 等待安装完成 4 最后可在Dash Home中见到Sublime-text的软件图标，点击就可使用了. 从命令行启动 subl 安装流程 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113

简介 postfix是Wietse Venema在IBM的GPL协议之下开发的MTA（邮件传输代理）软件。postfix是Wietse Venema想要为使用最广泛的sendmail提供替代品的一个尝试。在Internet世界中，大部分的电子邮件都是通过sendmail来投递的，大约有100万用户使用sendmail，每天投递上亿封邮件。这真是一个让人吃惊的数字。Postfix试图更快、更容易管理、更安全，同时还与sendmail保持足够的兼容性。 工作原理 客户端通过Outlook软件，向邮件服务器发送一封邮件，邮件服务器会检查是发往本域？还是发往其他域？ 1、如果发送到本域，直接存放到Mailbox中，另外一个用户上线，需要收取这封邮件，需要借助dovecot（dovecot提供的是MRA的功能）软件，通过dovecot进入数据库验证身份，验证通过以后，就可以通过MRA调用POP3或者IMAP4的协议，进入邮箱收取邮件，并且将邮件转发给用户 2、如果发送到其他域，其他MTA。但是转发之前，验证用户身份，是否要为其转发邮件，验证的时候是用到了SASL函数库，用户的信息是放到了数据库中，此时我们需要一个中间层authlib，通过authlib替SASL函数库向数据库进行验证，做“发信认证”，认证通过，允许转发，验证不通过，拒绝转发 3、通过浏览器访问邮件服务器（EXtmall）

利用pipenv创建虚拟环境进行开发 安装 pip install pipenv 使用，进入开发项目的文件夹 创建虚拟环境 pipenv install 进入虚拟环境 pipenv shell（无虚拟环境会自动创建） 虚拟环境可以使用pip 安装包 pip list github上的使用指南 Usage $ pipenv Usage: pipenv [OPTIONS] COMMAND [ARGS]... Options: -- where Output project home information. -- venv Output virtualenv information. -- py Output Python interpreter information. -- envs Output Environment Variable options. -- rm Remove the virtualenv. -- bare Minimal output. --completion Output completion (to be eval ‘ d). -- man Display manpage. --three / --two Use Python 3 / 2 when creating virtualenv. -- python TEXT Specify which