New in version 1.5.2.
Source code: Lib/netrc.py
The netrc
class parses and encapsulates the netrc file format used by the Unix ftp program and other FTP clients.
class netrc.netrc([file])
A netrc
instance or subclass instance encapsulates data from a netrc file. The initialization argument, if present, specifies the file to parse. If no argument is given, the file .netrc
in the user’s home directory will be read. Parse errors will raise NetrcParseError
with diagnostic information including the file name, line number, and terminating token. If no argument is specified on a POSIX system, the presence of passwords in the .netrc
file will raise a NetrcParseError
if the file ownership or permissions are insecure (owned by a user other than the user running the process, or accessible for read or write by any other user). This implements security behavior equivalent to that of ftp and other programs that use .netrc
.
Changed in version 2.7.6: Added the POSIX permissions check.
exception netrc.NetrcParseError
Exception raised by the netrc
class when syntactical errors are encountered in source text. Instances of this exception provide three interesting attributes: msg
is a textual explanation of the error, filename
is the name of the source file, and lineno
gives the line number on which the error was found.
A netrc
instance has the following methods:
netrc.authenticators(host)
Return a 3-tuple (login, account, password)
of authenticators for host. If the netrc file did not contain an entry for the given host, return the tuple associated with the ‘default’ entry. If neither matching host nor default entry is available, return None
.
netrc.__repr__()
Dump the class data as a string in the format of a netrc file. (This discards comments and may reorder the entries.)
Instances of netrc
have public instance variables:
netrc.hosts
Dictionary mapping host names to (login, account, password)
tuples. The ‘default’ entry, if any, is represented as a pseudo-host by that name.
netrc.macros
Dictionary mapping macro names to string lists.
Note
Passwords are limited to a subset of the ASCII character set. Versions of this module prior to 2.3 were extremely limited. Starting with 2.3, all ASCII punctuation is allowed in passwords. However, note that whitespace and non-printable characters are not allowed in passwords. This is a limitation of the way the .netrc file is parsed and may be removed in the future.
© 2001–2020 Python Software Foundation
Licensed under the PSF License.
https://docs.python.org/2.7/library/netrc.html