FTPLIB错误socket.gaierror:提供了[Errno 8]节点名或服务名，或者未知 [英] FTPLIB error socket.gaierror: [Errno 8] nodename nor servname provided, or not known

问题描述

我正在尝试使用FTPlib从FTP服务器下载文件，但我一直收到以下错误消息.我尝试了在SO上找到的几种方法，即编辑etc/host文件，并在本地主机IP后添加计算机名称，但这也不起作用.

I'm trying to download a file from an FTP server using FTPlib but i keep getting the error below. I tried several methods found on SO namely editing the etc/host file and adding the computer name after the local host IP but that doesnt work either.

我们非常感谢您的帮助.(运行mac，python 3.7，macOS Mojave 10.14.2)

Any help is much appreciated. (running a mac, python 3.7, macOS Mojave 10.14.2)

正在尝试运行的代码:

from ftplib import FTP

ftp = FTP('myftpurl')

错误:

Traceback (most recent call last):

文件"，第1行，在 init 中的文件"/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ftplib.py"，第117行self.connect(主机)连接中的文件"/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ftplib.py"，第152行source_address = self.source_address)create_connection中的文件"/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py"，第707行对于getaddrinfo中的res(主机，端口，0，SOCK_STREAM):getaddrinfo中的文件"/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py"，行748用于_socket.getaddrinfo中的res(主机，端口，家庭，类型，原型，标志): socket.gaierror:[Errno 8]节点名或服务名未提供，或者未知

File "", line 1, in File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ftplib.py", line 117, in init self.connect(host) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ftplib.py", line 152, in connect source_address=self.source_address) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 707, in create_connection for res in getaddrinfo(host, port, 0, SOCK_STREAM): File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/socket.py", line 748, in getaddrinfo for res in _socket.getaddrinfo(host, port, family, type, proto, flags): socket.gaierror: [Errno 8] nodename nor servname provided, or not known

推荐答案

ftp = FTP('myftpurl')

不清楚您的特定代码中实际上包含了什么 myftpurl .
但是给定它的名称，我认为您已经尝试过 ftp://example.com 之类的东西.仅作为明确记录 FTP(..)不需要URL，而是主机名或IP，即 FTP('example.com')而不是 FTP('ftp://example.com').

It is not clear what myftpurl actually contains in your specific code.
But given its name I assume that you've tried something like ftp://example.com. Only, as clearly documented FTP(...) does not expect a URL but instead a hostname or IP, i.e. FTP('example.com') and not FTP('ftp://example.com').

给出一个可能与您一样的URL会导致将该URL视为主机名，即对主机名 ftp://example.com 进行查找.由于不存在这样的主机，因此会出现错误.

Given a URL like you probably do will result in treating that URL as hostname, i.e. doing a lookup for the hostname ftp://example.com. Since such a host does not exist you get an error.

这篇关于FTPLIB错误socket.gaierror:提供了[Errno 8]节点名或服务名，或者未知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！