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r` t|trFt|}||}d||f Y S X d}t|rtd}t d|}d||||f S |S )a The inverse of parseaddr(), this takes a 2-tuple of the form
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for an RFC 2822 From, To or Cc header.
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returned unmodified.
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r; Fc C sR | dkrt } |s|r,tj| tjj}n tj| }|rH| }d}t||S )a Returns a date string as specified by RFC 2822, e.g.:
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Optional timeval if given is a floating point time value as accepted by
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Optional localtime is a flag that when True, interprets timeval, and
returns a date relative to the local timezone instead of UTC, properly
taking daylight savings time into account.
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t |}Y nX | j|dS )a Return local time as an aware datetime object.
If called without arguments, return current time. Otherwise *dt*
argument should be a datetime instance, and it is converted to the
local time zone according to the system time zone database. If *dt* is
naive (that is, dt.tzinfo is None), it is assumed to be in local time.
In this case, a positive or zero value for *isdst* causes localtime to
presume initially that summer time (for example, Daylight Saving Time)
is or is not (respectively) in effect for the specified time. A
negative value for *isdst* causes the localtime() function to attempt
to divine whether summer time is in effect for the specified time.
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