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a &�i�� � @ s� d Z ddlZddlZddlZddlZddlZddlZddlZddlm Z ddl Z ddl m Z ddl m Z ddlmZmZ ddlmZmZ dd lmZ dd lmZmZ dd lmZ zdd lmZmZ W n ey� d ZZY n0 dd l m Z e� d�Z e�ddddd�Z e �!� Z"e �#e�G dd� dej$��Z%e%� Z&e �#e�G dd� dej$��Z'G dd� de�Z(G dd� de)�Z*G dd� de)�Z+G dd� de�Z,G dd � d e�Z-e �#e�G d d � d e-��Z.G d d � d e)�Z/G d!d"� d"e�Z0G d#d$� d$e)�Z1ej2d%k�rd&d'gZ3g d(�Z4ng Z3g Z4d)d*� Z5e5� Z6[5d:d+d,�Z7d;d-d.�Z8d/d0� Z9d1d2� Z:ej;d3k�rXd4d5� Z<nd6d5� Z<zdd7l=m>Z? W n$ e�y� G d8d9� d9e)�Z?Y n0 dS )<a� This module offers timezone implementations subclassing the abstract :py:class:`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)� OrderedDict)� string_types)�_thread� )�tzname_in_python2�_tzinfo)� tzrangebase�enfold)�_validate_fromutc_inputs)� _TzSingleton�_TzOffsetFactory)� _TzStrFactory)�tzwin� tzwinlocal)�warni� c @ sb e Zd ZdZdd� Zdd� Zedd� �Zdd � Ze d d � �Z d d � Z dZ dd� Z dd� ZejZdS )�tzutca� This is a tzinfo object that represents the UTC time zone. **Examples:** .. doctest:: >>> from datetime import * >>> from dateutil.tz import * >>> datetime.now() datetime.datetime(2003, 9, 27, 9, 40, 1, 521290) >>> datetime.now(tzutc()) datetime.datetime(2003, 9, 27, 12, 40, 12, 156379, tzinfo=tzutc()) >>> datetime.now(tzutc()).tzname() 'UTC' .. versionchanged:: 2.7.0 ``tzutc()`` is now a singleton, so the result of ``tzutc()`` will always return the same object. .. doctest:: >>> from dateutil.tz import tzutc, UTC >>> tzutc() is tzutc() True >>> tzutc() is UTC True c C s t S �N��ZERO��self�dt� r �2/usr/lib/python3.9/site-packages/dateutil/tz/tz.py� utcoffsetJ s ztzutc.utcoffsetc C s t S r r r r r r �dstM s z tzutc.dstc C s dS )N�UTCr r r r r �tznameP s z tzutc.tznamec C s dS )�6 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 � is_ambiguousT 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 �fromutcd s z tzutc.fromutcc C s0 t |ttf�stS t |t�p.t |t�o.|jtkS r )� isinstancer �tzoffset�NotImplemented�_offsetr �r �otherr r r �__eq__l s �z tzutc.__eq__Nc C s | |k S r r r% r r r �__ne__u s z tzutc.__ne__c C s d| j j S �Nz%s()�� __class__�__name__�r r r r �__repr__x 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@ || _ z |�� }W n ttfy( Y n0 tjt|�d�| _d S �N��seconds)�_name� total_seconds� TypeError�AttributeError�datetime� timedelta�_get_supported_offsetr$ )r �name�offsetr r r �__init__� s ztzoffset.__init__c C s | j S r �r$ r r r r r � s ztzoffset.utcoffsetc C s t S r r r r r r r � s z tzoffset.dstc C s | j S r )r8 r r r r r � s ztzoffset.tznamec C s || j S r rB r r r r r � s ztzoffset.fromutcc C s dS )a4 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 � s ztzoffset.is_ambiguousc C s t |t�stS | j|jkS r )r! r" r# r$ r% r r r r' � s ztzoffset.__eq__Nc C s | |k S r r r% r r r r( � s ztzoffset.__ne__c C s" d| j jt| j�t| j�� �f S )Nz %s(%s, %s))r+ r, �reprr8 �intr$ r9 r- r r r r. � s �ztzoffset.__repr__)r, r/ r0 r1 rA r r r r r r r r' r2 r( r. r3 r4 r r r r r" � 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 sl t t| ��� tjtj d�| _tjr:tjtj d�| _ n| j| _ | j | j | _ t | j �| _ ttj�| _d S r5 )�superrE rA r< r= �time�timezone� _std_offset�daylight�altzone� _dst_offset� _dst_saved�bool�_hasdst�tupler �_tznamesr- �r+ r r rA � s ztzlocal.__init__c C s, |d u r| j rd S | �|�r"| jS | jS d S r )rO �_isdstrL rI r r r r r � s ztzlocal.utcoffsetc C s0 |d u r| j rd S | �|�r(| j| j S tS d S r )rO rS rL rI r r r r r r � s z tzlocal.dstc C s | j | �|� S r )rQ rS r r r r r � s ztzlocal.tznamec C s$ | � |�}| o"|| � || j �kS )r )� _naive_is_dstrM )r r Z naive_dstr r r r � s �ztzlocal.is_ambiguousc C s t |�}t�|tj �jS r )�_datetime_to_timestamprG � localtimerH �tm_isdst)r r � timestampr r r rT s ztzlocal._naive_is_dstTc C sF | j s dS | �|�}t|dd �}| �|�rB|d ur>| �|� S dS |S )NF�foldT)rO rT �getattrr �_fold)r r Z fold_naiveZdstvalrY r r r rS s ztzlocal._isdstc C s� t |t�r"| j|jko | j|jkS t |t�rL| j oJ| jd dv oJ| jtkS t |t�rz| j ox| jd |j kox| j|j kS t S d S )Nr > r �GMT) r! rE rI rL r rO rQ r r" r8 r$ r# r% r r r r' . s" � �� � �ztzlocal.__eq__Nc C s | |k S r r r% r r r r( ? s ztzlocal.__ne__c C s d| j j S r) r* r- r r r r. B s ztzlocal.__repr__)T)r, r/ r0 r1 rA r r r r r rT rS r' r2 r( r. r3 r4 � __classcell__r r rR r rE � s (rE c @ sH e Zd Zg d�Zdd� Zdd� Zdd� ZdZd d � Zd d � Z d d� Z dS )�_ttinfo)r@ �delta�isdst�abbr�isstd�isgmt� dstoffsetc C s | j D ]}t| |d � qd S r �� __slots__�setattr)r �attrr r r rA L s z_ttinfo.__init__c C sN g }| j D ],}t| |�}|d ur |�d|t|�f � q d| jjd�|�f S )Nz%s=%s�%s(%s)z, )rf rZ �appendrC r+ r, �join)r �lrh �valuer r r r. P 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 r ) r! r^ r# r@ r_ r` ra rb rc rd r% r r r r' X s � � � � � �z_ttinfo.__eq__Nc C s | |k S r r r% r r r r( f s z_ttinfo.__ne__c C s$ i }| j D ]}t| |d �||< q |S r )rf rZ �r �stater? r r r � __getstate__i s z_ttinfo.__getstate__c C s( | j D ] }||v rt| ||| � qd S r re rn r r r � __setstate__o s z_ttinfo.__setstate__) r, r/ r0 rf rA r. r' r2 r( rp rq r r r r r^ H s r^ c @ s e Zd ZdZg d�Zdd� ZdS )�_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$ | j D ]}t| ||�|d �� qd S r )�attrsrg �get)r �kwargsrh r r r rA } s z_tzfile.__init__N)r, r/ r0 r1 r{ rA r r r r rr u s rr 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 that 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 <https://data.iana.org/time-zones/tz-link.html>`_ 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>`_ .. note:: Only construct a ``tzfile`` directly if you have a specific timezone file on disk that you want to read into a Python ``tzinfo`` object. If you want to get a ``tzfile`` representing a specific IANA zone, (e.g. ``'America/New_York'``), you should call :func:`dateutil.tz.gettz` with the zone identifier. **Examples:** Using the US Eastern time zone as an example, we can see that a ``tzfile`` provides time zone information for the standard Daylight Saving offsets: .. testsetup:: tzfile from dateutil.tz import gettz from datetime import datetime .. doctest:: tzfile >>> NYC = gettz('America/New_York') >>> NYC tzfile('/usr/share/zoneinfo/America/New_York') >>> print(datetime(2016, 1, 3, tzinfo=NYC)) # EST 2016-01-03 00:00:00-05:00 >>> print(datetime(2016, 7, 7, tzinfo=NYC)) # EDT 2016-07-07 00:00:00-04:00 The ``tzfile`` structure contains a fully history of the time zone, so historical dates will also have the right offsets. For example, before the adoption of the UTC standards, New York used local solar mean time: .. doctest:: tzfile >>> print(datetime(1901, 4, 12, tzinfo=NYC)) # LMT 1901-04-12 00:00:00-04:56 And during World War II, New York was on "Eastern War Time", which was a state of permanent daylight saving time: .. doctest:: tzfile >>> print(datetime(1944, 2, 7, tzinfo=NYC)) # EWT 1944-02-07 00:00:00-04:00 Nc s� t t| ��� d}t|t�r2|| _t|d�}d}n.|d urB|| _n t|d�rV|j| _n t |�| _|d ur�|stt |�}|�}| � |�}W d � n1 s�0 Y | � |� d S )NF�rbTr? ) rF r~ rA r! r � _filename�open�hasattrr? rC � _nullcontext� _read_tzfile� _set_tzdata)r �fileobj�filenameZfile_opened_hereZ file_stream�tzobjrR r r rA � s" (ztzfile.__init__c C s& t jD ]}t| d| t||�� qdS )z= Set the time zone data of this object from a _tzfile object �_N)rr r{ rg rZ )r r� rh r r r r� � s ztzfile._set_tzdatac s� t � � |�d��� dkr td��|�d� t�d|�d��\}}}}}}|rntt�d| |�|d ���� _ng � _|r�t�d| |�|��� _ng � _g }t |�D ] } |� t�d |�d ��� q�|�|��� } |r�|� |d t j � |�rt�d | |�|��} |�r t�d | |�|��} g � _t |�D ]�} || \} }}t| �} t� }| |_t�d �|_tj| d�|_||_| || �d|�� |_|| k�o�| | d k|_|| k�o�| | d k|_� j� |� �q,� fdd�� jD �� _d � _d � _ d � _ � j�r�� j�s� jd � _� _ n�t |d dd�D ]T} � j| }� j�sJ|j�sJ|� _n� j �s`|j�r`|� _ � j�r$� j �r$ �q��q$� j �r�� j�s�� j � _� jD ]}|j�s�|� _ �q��q�� jd � _ d }d }d }d }g � _ t � j�D ]�\} }|j}d }|d u�r4|j�r4|�s|| }|�s"|�r"|}tj|d�|_|}|| }|}|d u�rd||k�rd|j|k�rd|}|j}|}|}� j � � j| | � �q�t!� j�� _t!� j �� _ t!� j�� _� S )N� ZTZifzmagic not found� z>6l� z>%dlz>%dBz>lbb� � z>%dbr r6 � c s g | ]}� j | �qS r )rv )�.0�idx��outr r � <listcomp>s � z'tzfile._read_tzfile.<locals>.<listcomp>r ���)"rr �read�decode� ValueError�struct�unpack�listrt ru �rangerj �seek�os�SEEK_CURrv r> r^ r@ r< r= rd r_ r` �findra rb rc rw rx ry rz rs � enumeraterP )r r� Z ttisgmtcntZ ttisstdcntZleapcntZtimecntZtypecntZcharcntZttinfo�ira rb rc Zgmtoffr` Zabbrind�ttiZlastdstZ lastoffsetZ lastdstoffsetZlastbaseoffsetr@ rd Z baseoffsetZ adjustmentr r� r r� � s� � � � � � � ztzfile._read_tzfileFc C s6 | j s d S t|�}|r | jn| j }t�||�}|d S )Nr )� _trans_listrU Z_trans_list_utc�bisectZ bisect_right)r r �in_utcrX rs r� r r r �_find_last_transition� s z tzfile._find_last_transitionc C s8 |d u s|d t | j�kr | jS |dk r.| jS | j| S )Nr r )�lenr� � _ttinfo_stdZ_ttinfo_before� _trans_idx)r r� r r r � _get_ttinfo� s ztzfile._get_ttinfoc C s | � |�}| �|�S r )�_resolve_ambiguous_timer� )r r r� r r r � _find_ttinfo� s ztzfile._find_ttinfoc C sn t |tj�std��|j| ur&td��| j|dd�}| �|�}|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� r6 )r� �rY ) r! r< r: �tzinfor� r� r� r= r@ r r rD )r r r� r� Zdt_outrY r r r r � s ztzfile.fromutcc C sd |du r| � |�}t|�}| �|�}|du s4|dkr8dS | �|d �j|j }| j| }||| k S )r Nr Fr )r� rU r� r@ r� )r r r� rX r� Zod�ttr r r r s ztzfile.is_ambiguousc C sF | � |�}| �|�}|d u s$|dkr(|S t| o:| �||��}|| S )Nr )r� r[ rD r )r r r� r[ Z idx_offsetr r r r� ( s z tzfile._resolve_ambiguous_timec C s" |d u r d S | j stS | �|�jS r )r� r r� r_ r r r r r 5 s ztzfile.utcoffsetc C s0 |d u r d S | j stS | �|�}|js*tS |jS r )Z _ttinfo_dstr r� r` rd )r r r� r r r r > s z tzfile.dstc C s | j r|d u rd S | �|�jS r )r� r� ra r r r r r N s z tzfile.tznamec C s2 t |t�stS | j|jko0| j|jko0| j|jkS r )r! r~ r# r� r� Z _ttinfo_listr% r r r r' T s � �z tzfile.__eq__c C s | |k S r r r% r r r r( ] s z tzfile.__ne__c C s d| j jt| j�f S �Nri )r+ r, rC r� r- r r r r. ` s ztzfile.__repr__c C s | � d �S r )� __reduce_ex__r- r r r r4 c s ztzfile.__reduce__c C s | j d | jf| jfS r )r+ r� �__dict__)r Zprotocolr r r r� f s ztzfile.__reduce_ex__)N)F)N)r, r/ r0 r1 rA r� r� r� r� r� r r r� r r r r r' r2 r( r. r4 r� r] r r rR r r~ � s* G a $ r~ c @ s6 e Zd ZdZd dd�Zdd� Zdd� Zed d � �ZdS ) �tzrangea[ 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 || _|| _z |�� }W n ttfy: Y n0 z |�� }W n ttfy^ Y n0 |d urxtj|d�| _ nt | _ |d ur�tj|d�| _ n(|r�|d ur�| j tjdd� | _ nt | _ |r�|d u r�tjdddt� d�d�| _ n|| _ |�r|d u �rtjdd d t� d �d�| _n|| _| j | j | _t| j �| _d S ) Nr �� relativedeltar6 r ��hours� r� )r� �month�day�weekday� � r� )�dateutilr� � _std_abbr� _dst_abbrr9 r: r; r< r= rI r rL �SU� _start_delta� _end_delta�_dst_base_offset_rN �hasdst)r �stdabbr� stdoffset�dstabbrrd �start�endr r r rA � s> � � ztzrange.__init__c C s4 | j s dS t�|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 � transitions� s ztzrange.transitionsc C sV t |t�stS | j|jkoT| j|jkoT| j|jkoT| j|jkoT| j|jkoT| j|jkS r ) r! r� r# r� r� rI rL r� r� r% r r r r' � s � � � � �ztzrange.__eq__c C s | j S r )r� r- r r r �_dst_base_offset s ztzrange._dst_base_offset)NNNNN) r, r/ r0 r1 rA r� r' �propertyr� r r r r r� j s J � / 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. .. caution:: Prior to version 2.7.0, this function also supported time zones in the format: * ``EST5EDT,4,0,6,7200,10,0,26,7200,3600`` * ``EST5EDT,4,1,0,7200,10,-1,0,7200,3600`` This format is non-standard and has been deprecated; this function will raise a :class:`DeprecatedTZFormatWarning` until support is removed in a future version. .. _`GNU C Library: TZ Variable`: https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html Fc C s� ddl ma || _t�|�}|d u s*|jr2td��|jdv rN|sN| jd9 _t j | |j|j|j |j ddd� |j s�d | _ d | _n&| �|j�| _ | j r�| j|jdd �| _t| j �| _d S ) Nr )�_parserzunknown string format�r\ r r� F)r� r� r )�isend)Zdateutil.parserr� �parser�_sZ_parsetzZany_unused_tokensr� r� r� r� rA r� rd r� r� �_deltar� r� rN r� )r �sZ posix_offset�resr r r rA 7 s$ �ztzstr.__init__r c C s> ddl m} i }|jd urr|j|d< |jd ur`|�|j|j�|d< |jdkrVd|d< qpd|d< q�|jr�|j|d< n*|jd ur�|j|d< n|jd ur�|j|d < |s�|s�d |d< d|d< |�d�|d< n d |d< d|d< |�d �|d< |j d ur�|j |d < nd|d < |�r.| j | j }|d |j |j d 8 < |jf i |��S )Nr r� r� r� r r� r� ZyeardayZ nlyeardayr� r� r� r7 i i�Q )r� r� r� r� Zweekr� ZydayZjydayr� rG rL rI r7 Zdays)r �xr� r� r} r_ r r r r� W s< z tzstr._deltac C s d| j jt| j�f S r� �r+ r, rC r� r- r r r r. � s ztzstr.__repr__N)F)r )r, r/ r0 r1 rA 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 r5 )r< r= � tzoffsetfrom� tzoffsetto� tzoffsetdiffr` r �rrule)r r� r� r` r r� r r r rA � s z_tzicalvtzcomp.__init__)NN)r, r/ r0 rA 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 s4 t t| ��� || _|| _g | _g | _t�� | _ d S r ) rF r� rA �_tzid�_comps� _cachedate� _cachecompr � allocate_lock� _cache_lock)r �tzid�compsrR r r rA � s z_tzicalvtz.__init__c C sT t | j�dkr| jd S |jd d�}zH| j�. | j| j�|| �|�f� W d � W S 1 s`0 Y W n ty~ Y n0 d }d }| jD ](}| � ||�}|r�|r�||k r�|}|}q�|s�| jD ]}|j s�|} q�q�|d }| j�Z | j� d|| �|�f� | j� d|� t | j�dk�r0| j� � | j� � W d � n1 �sF0 Y |S )Nr r �r� r� ) r� r� �replacer� r� r� �indexr[ r� � _find_compdtr` �insert�pop)r r Z lastcompdtZlastcomp�comp�compdtr r r � _find_comp� s< �* *z_tzicalvtz._find_compc C s2 |j tk r | �|�r ||j 8 }|jj|dd�}|S )NT)Zinc)r� r r[ r� �before)r r� r r� r r r r� � s z_tzicalvtz._find_compdtc C s |d u r d S | � |�jS r )r� r� r r r r r � s z_tzicalvtz.utcoffsetc C s | � |�}|jr|jS tS d S r )r� r` r� r )r r r� r r r r � s z_tzicalvtz.dstc C s | � |�jS r )r� r r r r r r � s z_tzicalvtz.tznamec C s dt | j� S )Nz<tzicalvtz %s>)rC r� r- r r r r. � s z_tzicalvtz.__repr__)r, r/ r0 rA r� r� r r r r r. r3 r4 r] r r rR 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 5545`_ 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 5545`: https://tools.ietf.org/html/rfc5545 c C s~ ddl ma t|t�r(|| _t|d�}nt|dt|��| _t|�}i | _ |� }| � |� � � W d � n1 sp0 Y d S )Nr )r� �rr? ) r� r� r! r r� r� rZ rC r� �_vtz� _parse_rfcr� )r r� Zfobjr r r rA � s ztzical.__init__c C s t | j�� �S )z? Retrieves the available time zones as a list. )r� r� �keysr- r r r r� s z tzical.keysNc C sP |du rDt | j�dkr td��nt | j�dkr6td��tt| j��}| j�|�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� |� � }|std��|d dv r>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� r r� r r� r� i �< r� zinvalid offset: )�stripr� r� rD )r r� �signalr r r � _parse_offset" s , <ztzical._parse_offsetc C sb |� � }|std��d}|t|�k r~|| �� }|s<||= q|dkrt|d dkrt||d |dd � 7 < ||= q|d7 }qd }g }d}d }|D �]�}|s�q�|�dd�\} } | �d�} | s�td��| d �� } | dd � } |�r@| d k�r | d v r�n td | ��| }d} d } d }g }d }�q\| d k�r| d k�rv|�rDtd| ��|�sRtd��|�s`td��t||�| j|< d}n�| |k�r�| �s�td��| d u �r�td��|d u �r�td��d }|�r�tj d� |�dddd�}t | ||dk||�}|� |� d }n td| ���q\|�r | dk�rN| D ] }|dk�r d| }t|���q |� |� d} n�| dv �rd|� |� n�| d k�r�| �r�td | | d f ��| � | �} nj| d k�r�| �r�td | d ��| � | �}n>| d k�r�| �r�td!| d ��| }n| d"k�r�n td#| ��n>| d$k�r&| �r td%| d ��| }n| d&v �r2n td#| ��q�| d kr�| d kr�d }g }d}q�d S )'Nz empty stringr � r F�:�;zempty property nameZBEGIN)ZSTANDARD�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�cacher zinvalid component end: ZDTSTARTzVALUE=DATE-TIMEz(Unsupported DTSTART param in VTIMEZONE: )ZRRULEZRDATEZEXRULEZEXDATEZ TZOFFSETFROMzunsupported %s parm: %s Z TZOFFSETTOz unsupported TZOFFSETTO parm: ZTZNAMEzunsupported TZNAME parm: �COMMENTzunsupported property: ZTZIDzunsupported TZID parm: )ZTZURLz LAST-MODIFIEDr )� splitlinesr� r� �rstrip�split�upperr� r� r� Zrrulestrrk r� rj r� )r r� �linesr� �liner� r� ZinvtzZcomptyper? rm ZparmsZ founddtstartr� r� Z rrulelinesr Zrrr� Zparm�msgr r r r� 2 s� � � � �� � � � � � ztzical._parse_rfcc C s d| j jt| j�f S r� r� r- r r r r. � s ztzical.__repr__)N) r, r/ r0 r1 rA r� r| r� r� r. r r r r r� � s }r� �win32z/etc/localtimerV )z/usr/share/zoneinfoz/usr/lib/zoneinfoz/usr/share/lib/zoneinfoz /etc/zoneinfoc s2 t f� td ur� tf7 � G � fdd�dt�} | � S )Nc sD e Zd ZdZdd� Zd � fdd� Zdd� Zd d � Zedd d ��Z dS )z __get_gettz.<locals>.GettzFunca Retrieve a time zone object from a string representation This function is intended to retrieve the :py:class:`tzinfo` subclass that best represents the time zone that would be used if a POSIX `TZ variable`_ were set to the same value. If no argument or an empty string is passed to ``gettz``, local time is returned: .. code-block:: python3 >>> gettz() tzfile('/etc/localtime') This function is also the preferred way to map IANA tz database keys to :class:`tzfile` objects: .. code-block:: python3 >>> gettz('Pacific/Kiritimati') tzfile('/usr/share/zoneinfo/Pacific/Kiritimati') On Windows, the standard is extended to include the Windows-specific zone names provided by the operating system: .. code-block:: python3 >>> gettz('Egypt Standard Time') tzwin('Egypt Standard Time') Passing a GNU ``TZ`` style string time zone specification returns a :class:`tzstr` object: .. code-block:: python3 >>> gettz('AEST-10AEDT-11,M10.1.0/2,M4.1.0/3') tzstr('AEST-10AEDT-11,M10.1.0/2,M4.1.0/3') :param name: A time zone name (IANA, or, on Windows, Windows keys), location of a ``tzfile(5)`` zoneinfo file or ``TZ`` variable style time zone specifier. An empty string, no argument or ``None`` is interpreted as local time. :return: Returns an instance of one of ``dateutil``'s :py:class:`tzinfo` subclasses. .. versionchanged:: 2.7.0 After version 2.7.0, any two calls to ``gettz`` using the same input strings will return the same object: .. code-block:: python3 >>> tz.gettz('America/Chicago') is tz.gettz('America/Chicago') True In addition to improving performance, this ensures that `"same zone" semantics`_ are used for datetimes in the same zone. .. _`TZ variable`: https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html .. _`"same zone" semantics`: https://blog.ganssle.io/articles/2018/02/aware-datetime-arithmetic.html c S s& t �� | _d| _t� | _t�� | _d S )Nr� ) �weakref�WeakValueDictionary�_GettzFunc__instances� _GettzFunc__strong_cache_sizer �_GettzFunc__strong_cacher r� r� r- r r r rA s z'__get_gettz.<locals>.GettzFunc.__init__Nc s� | j �� | j�|d �}|d u rb| j|d�}|d u sPt|� �sP|d u sP|| j|< n|W d � S | j�||�| j|< t| j�| jkr�| jj dd� W d � n1 s�0 Y |S )N)r? F��last) r� r r| �nocacher! r r� r� r �popitem)r r? �rv�Ztzlocal_classesr r �__call__ s �� ,z'__get_gettz.<locals>.GettzFunc.__call__c S sN | j �4 || _t| j�|kr,| jjdd� qW d � n1 s@0 Y d S )NFr )r� r r� r r )r �sizer r r �set_cache_size+ s z-__get_gettz.<locals>.GettzFunc.set_cache_sizec S s> | j �$ t�� | _| j�� W d � n1 s00 Y d S r )r� r r r r �clearr- r r r � cache_clear1 s z*__get_gettz.<locals>.GettzFunc.cache_clearc S s� d}| s*zt jd } W n ty( Y n0 | du s:| dv r�tD ]v}t j�|�s||}tD ]"}t j�||�}t j�|�rV q|qVq>t j�|�r>zt |�}W q�W q> t t t fy� Y q>0 q>t � }�n�z| �d�r�| dd� } W nJ t�y$ } z0t| t��rd}t�t|�|� n� W Y d}~n d}~0 0 t j�| ��rTt j�| ��rLt | �}nd}�n2tD ]p}t j�|| �}t j�|��s�|�dd�}t j�|��s��qXzt |�}W �q�W n t t t f�y� Y n0 �qXd}tdu�rz t| �}W n ttf�y d}Y n0 |�s d d lm} |� �| �}|�s�| D ]8}|d v �r*z t| �}W n t �yX Y n0 �q��q*| d v �rtt }n| t j v �r�t � }|S ) z A non-cached version of gettzNZTZ)� r r r z'gettz argument should be str, not bytesr r� r )�get_zonefile_instance� 0123456789r� ) r� �environ�KeyError�TZFILES�path�isabs�TZPATHSrk �isfiler~ �IOError�OSErrorr� rE � startswithr: r! �bytes�sixZ raise_fromr� r Z WindowsError�UnicodeEncodeErrorZdateutil.zoneinfor r| r� r rG r ) r? �tz�filepathr� r% �eZnew_msgr �cr r r r 6 s� z&__get_gettz.<locals>.GettzFunc.nocache)N)N) r, r/ r0 r1 rA r r r � staticmethodr r r r r � GettzFunc� s Er4 )rE r r3 )r4 r r r � __get_gettz� s Jr5 c C sX |du r | j du rtd��| j }| jdd�} | j|d��t��|�}|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``. .. versionadded:: 2.7.0 N�,Datetime is naive and no time zone provided.r� )r� r� r� Z astimezoner )r r/ Zdt_rtr r r �datetime_exists� s r7 c C s� |du r | j du rtd��| j }t|dd�}|durTz |�| �W S tyR Y n0 | j|d�} t| dd�}t| dd�}|�� |�� k}|�� |�� 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 Nr6 r r� r r� r ) r� r� rZ r � Exceptionr� r r r )r r/ Zis_ambiguous_fnZwall_0Zwall_1Z same_offsetZsame_dstr r r �datetime_ambiguous� s r9 c C sJ | j durFt| �sF| tjdd� �� }| tjdd� �� }| || 7 } | S )aZ Given a datetime that may be imaginary, return an existing datetime. This function assumes that an imaginary datetime represents what the wall time would be in a zone had the offset transition not occurred, so it will always fall forward by the transition's change in offset. .. doctest:: >>> from dateutil import tz >>> from datetime import datetime >>> NYC = tz.gettz('America/New_York') >>> print(tz.resolve_imaginary(datetime(2017, 3, 12, 2, 30, tzinfo=NYC))) 2017-03-12 03:30:00-04:00 >>> KIR = tz.gettz('Pacific/Kiritimati') >>> print(tz.resolve_imaginary(datetime(1995, 1, 1, 12, 30, tzinfo=KIR))) 1995-01-02 12:30:00+14:00 As a note, :func:`datetime.astimezone` is guaranteed to produce a valid, existing datetime, so a round-trip to and from UTC is sufficient to get an extant datetime, however, this generally "falls back" to an earlier time rather than falling forward to the STD side (though no guarantees are made about this behavior). :param dt: A :class:`datetime.datetime` which may or may not exist. :return: Returns an existing :class:`datetime.datetime`. If ``dt`` was not imaginary, the datetime returned is guaranteed to be the same object passed to the function. .. versionadded:: 2.7.0 Nr� r� )r� r7 r< r= r )r Z curr_offset� old_offsetr r r �resolve_imaginary� s $ r; c C s | j dd�t �� S )z� Convert a :class:`datetime.datetime` object to an epoch timestamp in seconds since January 1, 1970, ignoring the time zone. Nr� )r� �EPOCHr9 )r r r r rU s rU )� r� c C s | S r r )� second_offsetr r r r> s r> c C s | }d| d d }|S )Nr� � r )r> r: Zcalculated_offsetr r r r> s )� nullcontextc @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) r� zj Class for wrapping contexts so that they are passed through in a with statement. c C s || _ d S r ��context)r rB r r r rA 0 s z_nullcontext.__init__c C s | j S r rA r- r r r � __enter__3 s z_nullcontext.__enter__c O s d S r r )�argsr} r r r �__exit__6 s z_nullcontext.__exit__N)r, r/ r0 r1 rA rC rE r r r r r� + s r� )N)N)@r1 r< r� rG �sysr� r� r � collectionsr r- r Z six.movesr Z_commonr r r r r Z _factoriesr r r �winr r � ImportError�warningsr r= r r< Z toordinalZ EPOCHORDINALZ add_metaclassr� r r r" rE r3 r^ rr r~ r� r� r� r� r� �platformr$ r' r5 Zgettzr7 r9 r; rU � version_infor> � contextlibr@ r� r r r r �<module> s� WD- k #w V O R " ..
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