mirror of https://github.com/python/cpython
81 lines
2.5 KiB
ReStructuredText
81 lines
2.5 KiB
ReStructuredText
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:mod:`netrc` --- netrc file processing
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======================================
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.. module:: netrc
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:synopsis: Loading of .netrc files.
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.. moduleauthor:: Eric S. Raymond <esr@snark.thyrsus.com>
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.. sectionauthor:: Eric S. Raymond <esr@snark.thyrsus.com>
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.. versionadded:: 1.5.2
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**Source code:** :source:`Lib/netrc.py`
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--------------
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The :class:`netrc` class parses and encapsulates the netrc file format used by
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the Unix :program:`ftp` program and other FTP clients.
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.. class:: netrc([file])
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A :class:`netrc` instance or subclass instance encapsulates data from a netrc
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file. The initialization argument, if present, specifies the file to parse. If
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no argument is given, the file :file:`.netrc` in the user's home directory will
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be read. Parse errors will raise :exc:`NetrcParseError` with diagnostic
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information including the file name, line number, and terminating token.
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.. exception:: NetrcParseError
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Exception raised by the :class:`netrc` class when syntactical errors are
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encountered in source text. Instances of this exception provide three
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interesting attributes: :attr:`msg` is a textual explanation of the error,
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:attr:`filename` is the name of the source file, and :attr:`lineno` gives the
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line number on which the error was found.
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.. _netrc-objects:
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netrc Objects
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-------------
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A :class:`netrc` instance has the following methods:
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.. method:: netrc.authenticators(host)
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Return a 3-tuple ``(login, account, password)`` of authenticators for *host*.
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If the netrc file did not contain an entry for the given host, return the tuple
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associated with the 'default' entry. If neither matching host nor default entry
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is available, return ``None``.
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.. method:: netrc.__repr__()
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Dump the class data as a string in the format of a netrc file. (This discards
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comments and may reorder the entries.)
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Instances of :class:`netrc` have public instance variables:
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.. attribute:: netrc.hosts
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Dictionary mapping host names to ``(login, account, password)`` tuples. The
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'default' entry, if any, is represented as a pseudo-host by that name.
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.. attribute:: netrc.macros
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Dictionary mapping macro names to string lists.
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.. note::
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Passwords are limited to a subset of the ASCII character set. Versions of
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this module prior to 2.3 were extremely limited. Starting with 2.3, all
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ASCII punctuation is allowed in passwords. However, note that whitespace and
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non-printable characters are not allowed in passwords. This is a limitation
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of the way the .netrc file is parsed and may be removed in the future.
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