If you want to take advantage of recent Python versions' async features, you can use aioftp from the same family of libraries and developers as the more popular aiohttp library. Here is a code example taken from their client tutorial :. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 9 years, 3 months ago. Active 1 year, 7 months ago. Viewed k times. Martin Prikryl k 46 46 gold badges silver badges bronze badges. Add a comment. Active Oldest Votes. To download a file from FTP server you could: import urllib urllib. Community Bot 1 1 1 silver badge. Thank you for this, but how can you provide credentials? If you can't make it to work, ask.
A bit of urlib vs. Does requests support ftp at all? LimokPalantaemon it is equivalent to ftp. Raises an auditing event ftplib. Return the welcome message sent by the server in reply to the initial connection. This message sometimes contains disclaimers or help information that may be relevant to the user. Log in as the given user. The passwd and acct parameters are optional and default to the empty string.
If no user is specified, it defaults to 'anonymous'. If user is 'anonymous' , the default passwd is 'anonymous '. This function should be called only once for each instance, after a connection has been established; it should not be called at all if a host and user were given when the instance was created.
Most FTP commands are only allowed after the client has logged in. Abort a file transfer that is in progress. Send a simple command string to the server and handle the response. Return nothing if a response code corresponding to success codes in the range — is received. Retrieve a file in binary transfer mode. The callback function is called for each block of data received, with a single bytes argument giving the data block.
The optional blocksize argument specifies the maximum chunk size to read on the low-level socket object created to do the actual transfer which will also be the largest size of the data blocks passed to callback. A reasonable default is chosen. Retrieve a file or directory listing in the encoding specified by the encoding parameter at initialization. LIST retrieves a list of files and information about those files. NLST retrieves a list of file names.
The callback function is called for each line with a string argument containing the line with the trailing CRLF stripped. The default callback prints the line to sys.
Passive mode is on by default. Store a file in binary transfer mode. The blocksize argument defaults to The client should then retry the request with the appropriate name and password for the realm included as a header in the request. This allows you to specify a default username and password for a URL. This will be supplied in the absence of you providing an alternative combination for a specific realm.
This is through the ProxyHandler , which is part of the normal handler chain when a proxy setting is detected. One way to do this is to setup our own ProxyHandler , with no proxies defined. This is done using similar steps to setting up a Basic Authentication handler:. Currently urllib.
However, this can be enabled by extending urllib. The Python support for fetching resources from the web is layered. As of Python 2. This can be useful in applications which have to fetch web pages. By default the socket module has no timeout and can hang. Currently, the socket timeout is not exposed at the http. However, you can set the default timeout globally for all sockets using. Browser sniffing is a very bad practice for website design - building sites using web standards is much more sensible.
Unfortunately a lot of sites still send different versions to different browsers. In my case I have to use a proxy to access the internet at work. If you attempt to fetch localhost URLs through this proxy it blocks them.
IE is set to use the proxy, which urllib picks up on. In order to test scripts with a localhost server, I have to prevent urllib from using the proxy. Navigation index modules next previous Python ». Convert the pathname path from the local syntax for a path to the form used in the path component of a URL. This does not produce a complete URL.
The return value will already be quoted using the quote function. Convert the path component path from a percent-encoded URL to the local syntax for a path.
This does not accept a complete URL. This function uses unquote to decode path. This helper function returns a dictionary of scheme to proxy server URL mappings.
It defaults to http. This is the host name or IP address of the original request that was initiated by the user. For example, if the request is for an image in an HTML document, this should be the request-host of the request for the page containing the image. It defaults to False. An unverifiable request is one whose URL the user did not have the option to approve. For example, if the request is for an image in an HTML document, and the user had no option to approve the automatic fetching of the image, this should be true.
It manages the chaining of handlers, and recovery from errors. This is the base class for all registered handlers — and handles only the simple mechanics of registration. Cause requests to go through a proxy. If proxies is given, it must be a dictionary mapping protocol names to URLs of proxies.
A realm of None is considered a catch-all realm, which is searched if no other realm fits. This is a mixin class that helps with HTTP authentication, both to the remote host and to a proxy. Handle authentication with the remote host. Handle authentication with the proxy. If the Digest Authentication returns a 40x response again, it is sent to Basic Authentication handler to Handle.
This Handler method will raise a ValueError when presented with an authentication scheme other than Digest or Basic. It also defines several public attributes that can be used by clients to inspect the parsed request. The URI path. If the Request uses a proxy, then selector will be the full url that is passed to the proxy. The HTTP request method to use. This attribute is initialized with the value of the method argument passed to the constructor. Return a string indicating the HTTP request method.
If Request. This is only meaningful for HTTP requests. Add another header to the request. Headers are currently ignored by all handlers except HTTP handlers, where they are added to the list of headers sent to the server. Note that there cannot be more than one header with the same name, and later calls will overwrite previous calls in case the key collides. Currently, this is no loss of HTTP functionality, since all headers which have meaning when used more than once have a header-specific way of gaining the same functionality using only one header.
Prepare the request by connecting to a proxy server. Set the Request data to data. Deprecated in 3. Deprecated since version 3. Return whether the instance has a non- None data. Return the type of the URL — also known as the scheme. Return the host to which a connection will be made. Return the selector — the part of the URL that is sent to the server.
Return the request-host of the origin transaction, as defined by RFC See the documentation for the Request constructor. Return whether the request is unverifiable, as defined by RFC OpenerDirector instances have the following methods:. The following methods are searched, and added to the possible chains note that HTTP errors are a special case. Open the given url which can be a request object or a string , optionally passing the given data. Arguments, return values and exceptions raised are the same as those of urlopen which simply calls the open method on the currently installed global OpenerDirector.
Handle an error of the given protocol. This will call the registered error handlers for the given protocol with the given arguments which are protocol specific. Return values and exceptions raised are the same as those of urlopen.
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