Edit File: tz.cpython-36.pyc
3 6�cY�� � @ s� d Z ddlZddlZddlZddlZddlZddlZddlmZ ddl m Z m Z m Z ddl m Z mZ ddl mZ yddlmZmZ W n ek r� d ZZY nX ejd�Zejjd�Zej� ZG d d � d ej�ZG d d � d ej�Z G d d� de �Z G dd� de �Z G dd� de �Z G dd� de �Z!G dd� de �Z"G dd� de"�Z#G dd� de �Z$G dd � d e �Z%G d d � d e �Z&ej'd k�r�d d!gZ(d"d#d$d%gZ)ng Z(g Z)d0d&d'�Z*d1d(d)�Z+d2d*d+�Z,d,d-� Z-G d.d/� d/e �Z.dS )3a{ This module offers timezone implementations subclassing the abstract :py:`datetime.tzinfo` type. There are classes to handle tzfile format files (usually are in :file:`/etc/localtime`, :file:`/usr/share/zoneinfo`, etc), TZ environment string (in all known formats), given ranges (with help from relative deltas), local machine timezone, fixed offset timezone, and UTC timezone. � N)� string_types� )�tzname_in_python2�_tzinfo�_total_seconds)� tzrangebase�enfold)�_validate_fromutc_inputs)�tzwin� tzwinlocalc @ sb e Zd ZdZdd� Zdd� Zedd� �Zdd � Ze d d � �Z d d � Z dZ dd� Z dd� ZejZdS )�tzutczD This is a tzinfo object that represents the UTC time zone. c C s t S )N)�ZERO)�self�dt� r �/usr/lib/python3.6/tz.py� utcoffset$ s ztzutc.utcoffsetc C s t S )N)r )r r r r r �dst' s z tzutc.dstc C s dS )N�UTCr )r r r r r �tzname* s z tzutc.tznamec C s dS )a6 Whether or not the "wall time" of a given datetime is ambiguous in this zone. :param dt: A :py:class:`datetime.datetime`, naive or time zone aware. :return: Returns ``True`` if ambiguous, ``False`` otherwise. .. versionadded:: 2.6.0 Fr )r r r r r � is_ambiguous. s ztzutc.is_ambiguousc C s |S )z� Fast track version of fromutc() returns the original ``dt`` object for any valid :py:class:`datetime.datetime` object. r )r r r r r �fromutc> s z tzutc.fromutcc C s0 t |ttf�stS t |t�p.t |t�o.|jtkS )N)� isinstancer �tzoffset�NotImplemented�_offsetr )r �otherr r r �__eq__F s z tzutc.__eq__Nc C s | |k S )Nr )r r r r r �__ne__O s z tzutc.__ne__c C s d| j j S )Nz%s())� __class__�__name__)r r r r �__repr__R s ztzutc.__repr__)r � __module__� __qualname__�__doc__r r r r r r r r �__hash__r r! �object� __reduce__r r r r r s r c @ sj e Zd ZdZdd� Zdd� Zdd� Zedd � �Ze d d � �Z d d � Z dd� Z dZ dd� Zdd� ZejZdS )r a1 A simple class for representing a fixed offset from UTC. :param name: The timezone name, to be returned when ``tzname()`` is called. :param offset: The time zone offset in seconds, or (since version 2.6.0, represented as a :py:class:`datetime.timedelta` object. c C s> || _ y t|�}W n ttfk r* Y nX tj|d�| _d S )N)�seconds)�_namer � TypeError�AttributeError�datetime� timedeltar )r �name�offsetr r r �__init__c s ztzoffset.__init__c C s | j S )N)r )r r r r r r m s ztzoffset.utcoffsetc C s t S )N)r )r r r r r r p s z tzoffset.dstc C s | j S )N)r) )r r r r r r s s ztzoffset.tznamec C s || j S )N)r )r r r r r r w s ztzoffset.fromutcc C s dS )a6 Whether or not the "wall time" of a given datetime is ambiguous in this zone. :param dt: A :py:class:`datetime.datetime`, naive or time zone aware. :return: Returns ``True`` if ambiguous, ``False`` otherwise. .. versionadded:: 2.6.0 Fr )r r r r r r { s ztzoffset.is_ambiguousc C s t |t�stS | j|jkS )N)r r r r )r r r r r r � s ztzoffset.__eq__Nc C s | |k S )Nr )r r r r r r � s ztzoffset.__ne__c C s" d| j jt| j�tt| j��f S )Nz %s(%s, %s))r r �reprr) �intr r )r r r r r! � s ztzoffset.__repr__)r r" r# r$ r0 r r r r r r r r r% r r! r& r' r r r r r X s r c sx e Zd ZdZ� fdd�Zdd� Zdd� Zedd � �Zd d � Z d d � Z ddd�Z dd� Z dZ dd� Zdd� ZejZ� ZS )�tzlocalzR A :class:`tzinfo` subclass built around the ``time`` timezone functions. c s` t t| �j� tjtj d�| _tjr:tjtj d�| _ n| j| _ | j | j | _ t | j �| _ d S )N)r( )�superr3 r0 r, r- �time�timezone� _std_offsetZdaylightZaltzone� _dst_offset� _dst_saved�bool�_hasdst)r )r r r r0 � s ztzlocal.__init__c C s, |d kr| j rd S | j|�r"| jS | jS d S )N)r; �_isdstr8 r7 )r r r r r r � s ztzlocal.utcoffsetc C s0 |d kr| j rd S | j|�r(| j| j S tS d S )N)r; r< r8 r7 r )r r r r r r � s z tzlocal.dstc C s t j| j|� S )N)r5 r r< )r r r r r r � s ztzlocal.tznamec C s$ | j |�}| o"|| j || j �kS )a6 Whether or not the "wall time" of a given datetime is ambiguous in this zone. :param dt: A :py:class:`datetime.datetime`, naive or time zone aware. :return: Returns ``True`` if ambiguous, ``False`` otherwise. .. versionadded:: 2.6.0 )� _naive_is_dstr9 )r r Z naive_dstr r r r � s ztzlocal.is_ambiguousc C s t |�}tj|tj �jS )N)�_datetime_to_timestampr5 � localtimer6 Ztm_isdst)r r � timestampr r r r= � s ztzlocal._naive_is_dstTc C sF | j s dS | j|�}t|dd �}| j|�rB|d k r>| j|� S dS |S )NF�foldT)r; r= �getattrr �_fold)r r Z fold_naiveZdstvalrA r r r r< � s ztzlocal._isdstc C s& t |t�stS | j|jko$| j|jkS )N)r r3 r r7 r8 )r r r r r r s ztzlocal.__eq__Nc C s | |k S )Nr )r r r r r r s ztzlocal.__ne__c C s d| j j S )Nz%s())r r )r r r r r! s ztzlocal.__repr__)T)r r" r# r$ r0 r r r r r r= r< r r% r r! r& r' � __classcell__r r )r r r3 � s (r3 c @ sR e Zd ZdddddddgZdd � Zd d � Zd d � ZdZdd� Zdd� Z dd� Z dS )�_ttinfor/ �delta�isdst�abbr�isstd�isgmt� dstoffsetc C s x| j D ]}t| |d � qW d S )N)� __slots__�setattr)r �attrr r r r0 s z_ttinfo.__init__c C sR g }x6| j D ],}t| |�}|d k r |jd|t|�f � q W d| jjdj|�f S )Nz%s=%sz%s(%s)z, )rL rB �appendr1 r r �join)r �lrN �valuer r r r! s z_ttinfo.__repr__c C sb t |t�stS | j|jko`| j|jko`| j|jko`| j|jko`| j|jko`| j|jko`| j |j kS )N) r rE r r/ rF rG rH rI rJ rK )r r r r r r $ s z_ttinfo.__eq__Nc C s | |k S )Nr )r r r r r r 2 s z_ttinfo.__ne__c C s( i }x | j D ]}t| |d �||< q W |S )N)rL rB )r �stater. r r r � __getstate__5 s z_ttinfo.__getstate__c C s, x&| j D ] }||krt| ||| � qW d S )N)rL rM )r rS r. r r r � __setstate__; s z_ttinfo.__setstate__) r r" r# rL r0 r! r r% r rT rU r r r r rE s rE c @ s, e Zd ZdZdddddddd gZd d � Zd S ) �_tzfilezw Lightweight class for holding the relevant transition and time zone information read from binary tzfiles. � trans_list�trans_list_utc� trans_idx� ttinfo_list� ttinfo_std� ttinfo_dst� ttinfo_before� ttinfo_firstc K s( x"| j D ]}t| ||j|d �� qW d S )N)�attrsrM �get)r �kwargsrN r r r r0 I s z_tzfile.__init__N)r r" r# r$ r_ r0 r r r r rV A s rV c s� e Zd ZdZd&� fdd� Zdd� Zdd� Zd'd d �Zd d � Zdd� Z dd� Z d(dd�Z dd� Z dd� Z dd� Zedd� �Zd d � ZdZd d � Zd d!� Zd"d#� Zd$d%� Z� ZS ))�tzfilea� This is a ``tzinfo`` subclass thant allows one to use the ``tzfile(5)`` format timezone files to extract current and historical zone information. :param fileobj: This can be an opened file stream or a file name that the time zone information can be read from. :param filename: This is an optional parameter specifying the source of the time zone information in the event that ``fileobj`` is a file object. If omitted and ``fileobj`` is a file stream, this parameter will be set either to ``fileobj``'s ``name`` attribute or to ``repr(fileobj)``. See `Sources for Time Zone and Daylight Saving Time Data <http://www.twinsun.com/tz/tz-link.htm>`_ for more information. Time zone files can be compiled from the `IANA Time Zone database files <https://www.iana.org/time-zones>`_ with the `zic time zone compiler <https://www.freebsd.org/cgi/man.cgi?query=zic&sektion=8>`_ Nc s� t t| �j� d}t|t�r2|| _t|d�}d}n.|d k rB|| _n t|d�rV|j| _n t |�| _|d k r�|stt |�}|�}| j |�}W d Q R X | j |� d S )NF�rbTr. ) r4 rb r0 r r � _filename�open�hasattrr. r1 �_ContextWrapper� _read_tzfile� _set_tzdata)r �fileobj�filenameZfile_opened_hereZ file_stream�tzobj)r r r r0 d s" ztzfile.__init__c C s* x$t jD ]}t| d| t||�� qW dS )z= Set the time zone data of this object from a _tzfile object �_N)rV r_ rM rB )r rl rN r r r ri | s ztzfile._set_tzdatac s� t � � |jd�j� dkr td��|jd� tjd|jd��\}}}}}}|rnttjd| |j|d ���� _ng � _|r�tjd| |j|��� _ng � _g }x(t |�D ] } |j tjd |jd ��� q�W |j|�j� } |r�|j |d t j � |�rtjd | |j|��} |�r"tjd | |j|��} g � _x�t |�D ]�} || \} }}d | d d } t� }| |_tjd�|_tj| d�|_||_| || jd|�� |_|| k�o�| | dk|_|| k�o�| | dk|_� jj |� �q2W � fdd�� jD �� _d � _d � _d � _ � j�r؈ j�s$� jd � _� _ n�x�t |d dd�D ]V} � j| }� j �r`|j �r`|� _n� j �rx|j�rx|� _� j�r6� j�r6P �q6W � j�r�� j �r�� j� _x,� jD ]}|j�s�|� _ P �q�W � jd � _ d }g � _ xlt � j�D ]^\} }|j�s |j}|}n*|d k �r*|j| |_|� j| < |�p2d}� j j � j| | � �q�W d }x~t t t!� j���D ]h} � j| }|j�r�|j�p�|d k�s�|j| |_n|j}t"|jtj��s�tj|jd�|_|� j| < �qhW t#� j�� _t#� j �� _ t#� j�� _� S )N� ZTZifzmagic not found� z>6l� z>%dlz>%dBz>lbb� � z>%db�< � r )r( � c s g | ]}� j | �qS r )rZ )�.0�idx)�outr r � <listcomp> s z'tzfile._read_tzfile.<locals>.<listcomp>r ���rz )$rV �read�decode� ValueError�struct�unpack�listrX rY �rangerO �seek�os�SEEK_CURrZ rE r/ r, r- rK rF rG �findrH rI rJ r[ r\ r] r^ rW � enumerate�reversed�lenr �tuple)r rj Z ttisgmtcntZ ttisstdcntZleapcntZtimecntZtypecntZcharcntZttinfo�irH rI rJ ZgmtoffrG Zabbrind�ttiZ laststdoffsetr/ r )rx r rh � s� ztzfile._read_tzfileFc C s6 | j s d S t|�}|r | jn| j }tj||�}|d S )Nr )� _trans_listr> Z_trans_list_utc�bisectZ bisect_right)r r �in_utcr@ rW rw r r r �_find_last_transition^ s z tzfile._find_last_transitionc C s8 |d ks|d t | j�kr | jS |dk r.| jS | j| S )Nr r )r� r� � _ttinfo_stdZ_ttinfo_before� _trans_idx)r rw r r r � _get_ttinfom s ztzfile._get_ttinfoc C s | j |�}| j|�S )N)�_resolve_ambiguous_timer� )r r rw r r r � _find_ttinfox s ztzfile._find_ttinfoc C sn t |tj�std��|j| k r&td��| j|dd�}| j|�}|tj|jd� }| j ||d�}t |t |�d�S )a The ``tzfile`` implementation of :py:func:`datetime.tzinfo.fromutc`. :param dt: A :py:class:`datetime.datetime` object. :raises TypeError: Raised if ``dt`` is not a :py:class:`datetime.datetime` object. :raises ValueError: Raised if this is called with a ``dt`` which does not have this ``tzinfo`` attached. :return: Returns a :py:class:`datetime.datetime` object representing the wall time in ``self``'s time zone. z&fromutc() requires a datetime argumentzdt.tzinfo is not selfT)r� )r( )rw )rA ) r r, r* �tzinfor} r� r� r- r/ r r r2 )r r rw r� Zdt_outrA r r r r } s ztzfile.fromutcc C sd |dkr| j |�}t|�}| j|�}|dks4|dkr8dS | j|d �j|j }| j| }||| k S )a6 Whether or not the "wall time" of a given datetime is ambiguous in this zone. :param dt: A :py:class:`datetime.datetime`, naive or time zone aware. :return: Returns ``True`` if ambiguous, ``False`` otherwise. .. versionadded:: 2.6.0 Nr Fr )r� r> r� r/ r� )r r rw r@ r� ZodZttr r r r � s ztzfile.is_ambiguousc C sF | j |�}| j|�}|d ks$|dkr(|S t| o:| j||��}|| S )Nr )r� rC r2 r )r r rw rC Z idx_offsetr r r r� � s z tzfile._resolve_ambiguous_timec C s" |d kr d S | j stS | j|�jS )N)r� r r� rF )r r r r r r � s ztzfile.utcoffsetc C s0 |d kr d S | j stS | j|�}|js*tS |jS )N)Z _ttinfo_dstr r� rG rK )r r r� r r r r � s z tzfile.dstc C s | j s|d krd S | j|�jS )N)r� r� rH )r r r r r r � s z tzfile.tznamec C s2 t |t�stS | j|jko0| j|jko0| j|jkS )N)r rb r r� r� Z _ttinfo_list)r r r r r r � s z tzfile.__eq__c C s | |k S )Nr )r r r r r r � s z tzfile.__ne__c C s d| j jt| j�f S )Nz%s(%s))r r r1 rd )r r r r r! � s ztzfile.__repr__c C s | j d �S )N)� __reduce_ex__)r r r r r' � s ztzfile.__reduce__c C s | j d | jf| jfS )N)r rd �__dict__)r Zprotocolr r r r� � s ztzfile.__reduce_ex__)N)F)N)r r" r# r$ r0 ri rh r� r� r� r r r� r r r r r r% r r! r' r� rD r r )r r rb N s( ] $ rb c @ s6 e Zd ZdZd dd�Zdd� Zdd� Zed d � �ZdS ) �tzrangeaQ The ``tzrange`` object is a time zone specified by a set of offsets and abbreviations, equivalent to the way the ``TZ`` variable can be specified in POSIX-like systems, but using Python delta objects to specify DST start, end and offsets. :param stdabbr: The abbreviation for standard time (e.g. ``'EST'``). :param stdoffset: An integer or :class:`datetime.timedelta` object or equivalent specifying the base offset from UTC. If unspecified, +00:00 is used. :param dstabbr: The abbreviation for DST / "Summer" time (e.g. ``'EDT'``). If specified, with no other DST information, DST is assumed to occur and the default behavior or ``dstoffset``, ``start`` and ``end`` is used. If unspecified and no other DST information is specified, it is assumed that this zone has no DST. If this is unspecified and other DST information is *is* specified, DST occurs in the zone but the time zone abbreviation is left unchanged. :param dstoffset: A an integer or :class:`datetime.timedelta` object or equivalent specifying the UTC offset during DST. If unspecified and any other DST information is specified, it is assumed to be the STD offset +1 hour. :param start: A :class:`relativedelta.relativedelta` object or equivalent specifying the time and time of year that daylight savings time starts. To specify, for example, that DST starts at 2AM on the 2nd Sunday in March, pass: ``relativedelta(hours=2, month=3, day=1, weekday=SU(+2))`` If unspecified and any other DST information is specified, the default value is 2 AM on the first Sunday in April. :param end: A :class:`relativedelta.relativedelta` object or equivalent representing the time and time of year that daylight savings time ends, with the same specification method as in ``start``. One note is that this should point to the first time in the *standard* zone, so if a transition occurs at 2AM in the DST zone and the clocks are set back 1 hour to 1AM, set the `hours` parameter to +1. **Examples:** .. testsetup:: tzrange from dateutil.tz import tzrange, tzstr .. doctest:: tzrange >>> tzstr('EST5EDT') == tzrange("EST", -18000, "EDT") True >>> from dateutil.relativedelta import * >>> range1 = tzrange("EST", -18000, "EDT") >>> range2 = tzrange("EST", -18000, "EDT", -14400, ... relativedelta(hours=+2, month=4, day=1, ... weekday=SU(+1)), ... relativedelta(hours=+1, month=10, day=31, ... weekday=SU(-1))) >>> tzstr('EST5EDT') == range1 == range2 True Nc C s@ ddl ma || _|| _y t|�}W n ttfk r< Y nX y t|�}W n ttfk rb Y nX |d k r|tj|d�| _ nt | _ |d k r�tj|d�| _ n(|r�|d k r�| j tjd d� | _ nt | _ |r�|d kr�tjd ddtj d �d�| _ n|| _ |�r |d k�r tjdd d tj d�d�| _n|| _| j | j | _t| j �| _d S )Nr )� relativedelta)r( r )�hours� rn )r� �month�day�weekday� � r r� r r rz )�dateutilr� � _std_abbr� _dst_abbrr r* r+ r, r- r7 r r8 �SU� _start_delta� _end_delta�_dst_base_offset_r: �hasdst)r �stdabbr� stdoffset�dstabbrrK �start�endr r r r0 J s: ztzrange.__init__c C s4 | j s dS tj|dd�}|| j }|| j }||fS )a� For a given year, get the DST on and off transition times, expressed always on the standard time side. For zones with no transitions, this function returns ``None``. :param year: The year whose transitions you would like to query. :return: Returns a :class:`tuple` of :class:`datetime.datetime` objects, ``(dston, dstoff)`` for zones with an annual DST transition, or ``None`` for fixed offset zones. Nr )r� r, r� r� )r ZyearZ base_yearr� r� r r r � transitionsy s ztzrange.transitionsc C sV t |t�stS | j|jkoT| j|jkoT| j|jkoT| j|jkoT| j|jkoT| j|jkS )N) r r� r r� r� r7 r8 r� r� )r r r r r r � s ztzrange.__eq__c C s | j S )N)r� )r r r r �_dst_base_offset� s ztzrange._dst_base_offset)NNNNN) r r" r# r$ r0 r� r �propertyr� r r r r r� s I - r� c @ s, e Zd ZdZd dd�Zd dd�Zdd � Zd S ) �tzstra ``tzstr`` objects are time zone objects specified by a time-zone string as it would be passed to a ``TZ`` variable on POSIX-style systems (see the `GNU C Library: TZ Variable`_ for more details). There is one notable exception, which is that POSIX-style time zones use an inverted offset format, so normally ``GMT+3`` would be parsed as an offset 3 hours *behind* GMT. The ``tzstr`` time zone object will parse this as an offset 3 hours *ahead* of GMT. If you would like to maintain the POSIX behavior, pass a ``True`` value to ``posix_offset``. The :class:`tzrange` object provides the same functionality, but is specified using :class:`relativedelta.relativedelta` objects. rather than strings. :param s: A time zone string in ``TZ`` variable format. This can be a :class:`bytes` (2.x: :class:`str`), :class:`str` (2.x: :class:`unicode`) or a stream emitting unicode characters (e.g. :class:`StringIO`). :param posix_offset: Optional. If set to ``True``, interpret strings such as ``GMT+3`` or ``UTC+3`` as being 3 hours *behind* UTC rather than ahead, per the POSIX standard. .. _`GNU C Library: TZ Variable`: https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html Fc C s� ddl ma || _tj|�}|d kr,td��|jd krJ| rJ| jd 9 _tj| |j|j|j |j ddd� |j s~d | _ d | _ n&| j |j�| _ | j r�| j |jdd �| _ t| j �| _d S ) Nr )�parserzunknown string format�GMTr r F)r� r� )�isend)r� r rz )r� r� �_sZ_parsetzr} r� r� r� r0 r� rK r� r� �_deltar� r� r: r� )r �sZ posix_offset�resr r r r0 � s" ztzstr.__init__r c C s< ddl m} i }|jd k rr|j|d< |jd k r`|j|j|j�|d< |jdkrVd|d< qpd|d< q�|jr�|j|d< n*|jd k r�|j|d< n|jd k r�|j|d < |s�|s�d |d< d|d< |jd�|d< n d |d< d|d< |jd�|d< |j d k � r�|j |d < nd |d < |�r0| j | j }|d |j |j d 8 < |jf |�S )Nr )r� r� r� r r� r� ZyeardayZ nlyeardayrn r� r( i i�Q r rz )r� r� r� r� Zweekr� ZydayZjydayr� r5 r8 r7 r( Zdays)r �xr� r� ra rF r r r r� � s< z tzstr._deltac C s d| j jt| j�f S )Nz%s(%s))r r r1 r� )r r r r r! s ztzstr.__repr__N)F)r )r r" r# r$ r0 r� r! r r r r r� � s )r� c @ s e Zd Zddd�ZdS )�_tzicalvtzcompNc C s@ t j|d�| _t j|d�| _| j| j | _|| _|| _|| _d S )N)r( )r, r- � tzoffsetfrom� tzoffsetto� tzoffsetdiffrG r �rrule)r r� r� rG r r� r r r r0 s z_tzicalvtzcomp.__init__)NN)r r" r# r0 r r r r r� s r� c sZ e Zd Zg f� fdd� Zdd� Zdd� Zdd� Zd d � Zed d � �Z d d� Z e j Z � Z S )� _tzicalvtzc s* t t| �j� || _|| _g | _g | _d S )N)r4 r� r0 �_tzid�_comps� _cachedate� _cachecomp)r �tzid�comps)r r r r0 s z_tzicalvtz.__init__c C s t | j�dkr| jd S |jd d�}y | j| jj|| j|�f� S tk rT Y nX d }d }x4| jD ]*}| j||�}|rf| s�||k rf|}|}qfW |s�x"| jD ]}|j s�|}P q�W |d }| jj d|| j|�f� | jj d|� t | j�dk�r| jj � | jj � |S )Nr r )r� r� ) r� r� �replacer� r� �indexrC r} � _find_compdtrG �insert�pop)r r Z lastcompdtZlastcomp�comp�compdtr r r � _find_comp s4 z_tzicalvtz._find_compc C s2 |j tk r | j|�r ||j 8 }|jj|dd�}|S )NT)Zinc)r� r rC r� Zbefore)r r� r r� r r r r� I s z_tzicalvtz._find_compdtc C s |d kr d S | j |�jS )N)r� r� )r r r r r r Q s z_tzicalvtz.utcoffsetc C s | j |�}|jr|jS tS d S )N)r� rG r� r )r r r� r r r r W s z_tzicalvtz.dstc C s | j |�jS )N)r� r )r r r r r r ^ s z_tzicalvtz.tznamec C s dt | j� S )Nz<tzicalvtz %s>)r1 r� )r r r r r! b s z_tzicalvtz.__repr__)r r" r# r0 r� r� r r r r r! r& r' rD r r )r r r� s * r� c @ sB e Zd ZdZdd� Zdd� Zddd�Zd d � Zd d � Zd d� Z dS )�tzicala\ This object is designed to parse an iCalendar-style ``VTIMEZONE`` structure as set out in `RFC 2445`_ Section 4.6.5 into one or more `tzinfo` objects. :param `fileobj`: A file or stream in iCalendar format, which should be UTF-8 encoded with CRLF endings. .. _`RFC 2445`: https://www.ietf.org/rfc/rfc2445.txt c C sj ddl ma t|t�r(|| _t|d�}nt|dt|��| _t|�}i | _ |�}| j |j � � W d Q R X d S )Nr )r� �rr. ) r� r� r r r� re rB r1 rg �_vtz� _parse_rfcr{ )r rj Zfobjr r r r0 s s ztzical.__init__c C s t | jj� �S )z? Retrieves the available time zones as a list. )r� r� �keys)r r r r r� � s z tzical.keysNc C sP |dkrDt | j�dkr td��nt | j�dkr6td��tt| j��}| jj|�S )a� Retrieve a :py:class:`datetime.tzinfo` object by its ``tzid``. :param tzid: If there is exactly one time zone available, omitting ``tzid`` or passing :py:const:`None` value returns it. Otherwise a valid key (which can be retrieved from :func:`keys`) is required. :raises ValueError: Raised if ``tzid`` is not specified but there are either more or fewer than 1 zone defined. :returns: Returns either a :py:class:`datetime.tzinfo` object representing the relevant time zone or :py:const:`None` if the ``tzid`` was not found. Nr zno timezones definedr z more than one timezone available)r� r� r} �next�iterr` )r r� r r r r` � s z tzical.getc C s� |j � }|std��|d d kr>d|d dk }|dd � }nd}t|�dkrzt|d d� �d t|dd � �d | S t|�d kr�t|d d� �d t|dd� �d t|dd � � | S td | ��d S )Nz empty offsetr �+�-r rn r� i rs rq zinvalid offset: )r� r� rz r )rz r r )�stripr} r� r2 )r r� �signalr r r � _parse_offset� s , <ztzical._parse_offsetc C sH |j � }|std��d}xh|t|�k r�|| j� }|s>||= q|dkrv|d dkrv||d |dd � 7 < ||= q|d7 }qW d }g }d}d }�x�|D �]�}|s�q�|jdd�\} } | jd�} | s�td��| d j� } | dd � } |�r$| d k�r(| d)k�r n td | ��| }d} d } d }g }d }�q@| d k�r| dk�r�|�rNtd| ��|�s\td��|�sjtd��t||�| j|< d}n�| |k�r| �s�td��| d k�r�td��|d k�r�td��d }|�r�tj dj |�dddd�}t | ||d k||�}|j |� d }n td| ���q@|�r�| dk�r2|j |� d} n�| d*k�rH|j |� n�| d k�rx| �rltd | | d f ��| j | �} nj| d k�r�| �r�td | d ��| j | �}n>| d!k�r�| �r�td"| d ��| }n| d#k�r�n td$| ��n>| d%k�r | �rtd&| d ��| }n| d+k�rn td$| ��q�| d kr�| dkr�d }g }d}q�W d S ),Nz empty stringr � r F�:�;zempty property nameZBEGIN�STANDARD�DAYLIGHTzunknown component: ZENDZ VTIMEZONEzcomponent not closed: zmandatory TZID not foundz at least one component is neededzmandatory DTSTART not foundz mandatory TZOFFSETFROM not found� T)Z compatibleZignoretz�cachezinvalid component end: ZDTSTART�RRULE�RDATE�EXRULE�EXDATEZ TZOFFSETFROMzunsupported %s parm: %s Z TZOFFSETTOz unsupported TZOFFSETTO parm: ZTZNAMEzunsupported TZNAME parm: �COMMENTzunsupported property: ZTZIDzunsupported TZID parm: �TZURL� LAST-MODIFIED)r� r� )r� r� r� r� )r� r� r� )� splitlinesr} r� �rstrip�split�upperr� r� r� ZrrulestrrP r� rO r� )r r� �linesr� �liner� r� ZinvtzZcomptyper. rR ZparmsZ founddtstartr� r� Z rrulelinesr Zrrr� r r r r� � s� ztzical._parse_rfcc C s d| j jt| j�f S )Nz%s(%s))r r r1 r� )r r r r r! + s ztzical.__repr__)N) r r" r# r$ r0 r� r` r� r� r! r r r r r� h s vr� Zwin32z/etc/localtimer? z/usr/share/zoneinfoz/usr/lib/zoneinfoz/usr/share/lib/zoneinfoz /etc/zoneinfoc C sD d }| s,yt jd } W n tk r* Y nX | d ks<| dkr�x�tD ]v}t jj|�s�|}x*tD ] }t jj||�}t jj|�r\P q\W qBt jj|�rByt |�}P W qB t t t fk r� Y qBX qBW t � }�nz| jd�r�| d d � } t jj| ��r t jj| ��rt | �}nd }�n6�x2tD ]l}t jj|| �}t jj|��sP|jdd�}t jj|��sP�qyt |�}P W n t t t fk �rz Y nX �qW d }td k �r�y t| �}W n tk �r� d }Y nX |�s�ddlm} |� j| �}|�s@xb| D ]6}|dk�r�y t| �}W n t k �r Y nX P �q�W | d k�r.t� }n| tjk�r@t � }|S ) NZTZr� r r� rm r )�get_zonefile_instance� 0123456789r� r rz )r� r )r� �environ�KeyError�TZFILES�path�isabs�TZPATHSrP �isfilerb �IOError�OSErrorr} r3 � startswithr� r Z WindowsErrorZdateutil.zoneinfor� r` r� r r5 r )r. �tz�filepathrk r� r� �cr r r �gettz: sz r� c C sZ |dkr | j dkrtd��| j }| jdd�} | j|d�jt� �j|�}|jdd�}| |kS )a� Given a datetime and a time zone, determine whether or not a given datetime would fall in a gap. :param dt: A :class:`datetime.datetime` (whose time zone will be ignored if ``tz`` is provided.) :param tz: A :class:`datetime.tzinfo` with support for the ``fold`` attribute. If ``None`` or not provided, the datetime's own time zone will be used. :return: Returns a boolean value whether or not the "wall time" exists in ``tz``. Nz,Datetime is naive and no time zone provided.)r� )r� r} r� Z astimezoner )r r� Zdt_rtr r r �datetime_exists� s r� c C s� |dkr | j dkrtd��| j }t|dd�}|dk rLy |j| �S Y nX | j|d�} t| dd�}t| dd�}|j� |j� k}|j� |j� k}|o�| S )a\ Given a datetime and a time zone, determine whether or not a given datetime is ambiguous (i.e if there are two times differentiated only by their DST status). :param dt: A :class:`datetime.datetime` (whose time zone will be ignored if ``tz`` is provided.) :param tz: A :class:`datetime.tzinfo` with support for the ``fold`` attribute. If ``None`` or not provided, the datetime's own time zone will be used. :return: Returns a boolean value whether or not the "wall time" is ambiguous in ``tz``. .. versionadded:: 2.6.0 Nz,Datetime is naive and no time zone provided.r )r� r )rA r )r� r} rB r r� r r r )r r� Zis_ambiguous_fnZwall_0Zwall_1Z same_offsetZsame_dstr r r �datetime_ambiguous� s r� c C s t | jdd�t �S )z� Convert a :class:`datetime.datetime` object to an epoch timestamp in seconds since January 1, 1970, ignoring the time zone. N)r� )r r� �EPOCH)r r r r r> � s r> c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) rg z^ Class for wrapping contexts so that they are passed through in a with statement. c C s || _ d S )N)�context)r r r r r r0 � s z_ContextWrapper.__init__c C s | j S )N)r )r r r r � __enter__� s z_ContextWrapper.__enter__c O s d S )Nr )�argsra r r r �__exit__� s z_ContextWrapper.__exit__N)r r" r# r$ r0 r r r r r r rg � s rg )N)N)N)/r$ r, r~ r5 �sysr� r� Zsixr Z_commonr r r r r r �winr r � ImportErrorr- r Zutcfromtimestampr Z toordinalZ EPOCHORDINALr� r r r3 r& rE rV rb r� r� r� r� r� �platformr� r� r� r� r� r> rg r r r r �<module> s\ 8Fv- 5 "j R H J .