gettext.bindtextdomain(domain, localedir=None) Bind the domain to the locale directory localedir. More concretely, gettext will look for binary .mo files for the given domain using the path (on Unix): localedir/language/LC_MESSAGES/domain.mo, where languages is searched for in the environment variables LANGUAGE, LC_ALL, LC_MESSAGES, and LANG respectively. If localedir is omitted or None, then the current binding for domain is returned. [1]

__str__() Returns an approximation of the Header as a string, using an unlimited line length. All pieces are converted to unicode using the specified encoding and joined together appropriately. Any pieces with a charset of 'unknown-8bit' are decoded as ASCII using the 'replace' error handler. Changed in version 3.2: Added handling for the 'unknown-8bit' charset.

from_decimal(dec) This class method constructs a Fraction representing the exact value of dec, which must be a decimal.Decimal instance. Note From Python 3.2 onwards, you can also construct a Fraction instance directly from a decimal.Decimal instance.

class http.cookiejar.FileCookieJar(filename, delayload=None, policy=None) policy is an object implementing the CookiePolicy interface. For the other arguments, see the documentation for the corresponding attributes. A CookieJar which can load cookies from, and perhaps save cookies to, a file on disk. Cookies are NOT loaded from the named file until either the load() or revert() method is called. Subclasses of this class are documented in section FileCookieJar subclasses and co-operation with

class ipaddress.IPv6Interface(address) Construct an IPv6 interface. The meaning of address is as in the constructor of IPv6Network, except that arbitrary host addresses are always accepted. IPv6Interface is a subclass of IPv6Address, so it inherits all the attributes from that class. In addition, the following attributes are available: ip network with_prefixlen with_netmask with_hostmask Refer to the corresponding attribute documentation in IPv4Interface.

exception OSError([arg]) exception OSError(errno, strerror[, filename[, winerror[, filename2]]]) This exception is raised when a system function returns a system-related error, including I/O failures such as “file not found” or “disk full” (not for illegal argument types or other incidental errors). The second form of the constructor sets the corresponding attributes, described below. The attributes default to None if not specified. For backwards compatibility, if three arguments are passed,

IMAP4.deleteacl(mailbox, who) Delete the ACLs (remove any rights) set for who on mailbox.

assertRaisesRegex(exception, regex, callable, *args, **kwds) assertRaisesRegex(exception, regex, msg=None) Like assertRaises() but also tests that regex matches on the string representation of the raised exception. regex may be a regular expression object or a string containing a regular expression suitable for use by re.search(). Examples: self.assertRaisesRegex(ValueError, "invalid literal for.*XYZ'$", int, 'XYZ') or: with self.assertRaisesRegex(ValueError, 'literal'

xmlparser.ExternalEntityRefHandler(context, base, systemId, publicId) Called for references to external entities. base is the current base, as set by a previous call to SetBase(). The public and system identifiers, systemId and publicId, are strings if given; if the public identifier is not given, publicId will be None. The context value is opaque and should only be used as described below. For external entities to be parsed, this handler must be implemented. It is responsible for creating t

Wave_write.setparams(tuple) The tuple should be (nchannels, sampwidth, framerate, nframes, comptype, compname), with values valid for the set*() methods. Sets all parameters.