2 :mod:`netrc` --- netrc file processing
3 ======================================
6 :synopsis: Loading of .netrc files.
7 .. moduleauthor:: Eric S. Raymond <esr@snark.thyrsus.com>
8 .. sectionauthor:: Eric S. Raymond <esr@snark.thyrsus.com>
11 .. versionadded:: 1.5.2
13 The :class:`netrc` class parses and encapsulates the netrc file format used by
14 the Unix :program:`ftp` program and other FTP clients.
17 .. class:: netrc([file])
19 A :class:`netrc` instance or subclass instance encapsulates data from a netrc
20 file. The initialization argument, if present, specifies the file to parse. If
21 no argument is given, the file :file:`.netrc` in the user's home directory will
22 be read. Parse errors will raise :exc:`NetrcParseError` with diagnostic
23 information including the file name, line number, and terminating token.
26 .. exception:: NetrcParseError
28 Exception raised by the :class:`netrc` class when syntactical errors are
29 encountered in source text. Instances of this exception provide three
30 interesting attributes: :attr:`msg` is a textual explanation of the error,
31 :attr:`filename` is the name of the source file, and :attr:`lineno` gives the
32 line number on which the error was found.
40 A :class:`netrc` instance has the following methods:
43 .. method:: netrc.authenticators(host)
45 Return a 3-tuple ``(login, account, password)`` of authenticators for *host*.
46 If the netrc file did not contain an entry for the given host, return the tuple
47 associated with the 'default' entry. If neither matching host nor default entry
48 is available, return ``None``.
51 .. method:: netrc.__repr__()
53 Dump the class data as a string in the format of a netrc file. (This discards
54 comments and may reorder the entries.)
56 Instances of :class:`netrc` have public instance variables:
59 .. attribute:: netrc.hosts
61 Dictionary mapping host names to ``(login, account, password)`` tuples. The
62 'default' entry, if any, is represented as a pseudo-host by that name.
65 .. attribute:: netrc.macros
67 Dictionary mapping macro names to string lists.
71 Passwords are limited to a subset of the ASCII character set. Versions of
72 this module prior to 2.3 were extremely limited. Starting with 2.3, all
73 ASCII punctuation is allowed in passwords. However, note that whitespace and
74 non-printable characters are not allowed in passwords. This is a limitation
75 of the way the .netrc file is parsed and may be removed in the future.