a
    h                     @   sp   d dl Zd dlmZ d dlmZmZmZmZ d dl	Z
ddlmZ ddlmZmZ ddlmZ G d	d
 d
eZdS )    N)Path)AnyCallableOptionalUnion   )_Image_fromarray   )check_integritydownload_url)VisionDatasetc                       s   e Zd ZdZdZdZdZdeee	f e
e e
e edd fdd	Zeeeef d
ddZedddZedddZddddZ  ZS )SEMEIONa  `SEMEION <http://archive.ics.uci.edu/ml/datasets/semeion+handwritten+digit>`_ Dataset.

    Args:
        root (str or ``pathlib.Path``): Root directory of dataset where directory
            ``semeion.py`` exists.
        transform (callable, optional): A function/transform that takes in a PIL image
            and returns a transformed version. E.g, ``transforms.RandomCrop``
        target_transform (callable, optional): A function/transform that takes in the
            target and transforms it.
        download (bool, optional): If true, downloads the dataset from the internet and
            puts it in root directory. If dataset is already downloaded, it is not
            downloaded again.

    zMhttp://archive.ics.uci.edu/ml/machine-learning-databases/semeion/semeion.datazsemeion.dataZ cb545d371d2ce14ec121470795a77432NT)root	transformtarget_transformdownloadreturnc                    s   t  j|||d |r|   |  s.tdtj| j| j	}t
|}|d d d df d d| _t
| jd| _t
|d d dd f d | _d S )N)r   r   zHDataset not found or corrupted. You can use download=True to download it      Zuint8)   r   r	   )super__init__r   _check_integrityRuntimeErrorospathjoinr   filenamenpZloadtxtZastypedataZreshapeZnonzerolabels)selfr   r   r   r   fpr    	__class__ J/var/www/auris/lib/python3.9/site-packages/torchvision/datasets/semeion.pyr       s    
 zSEMEION.__init__)indexr   c                 C   sV   | j | t| j|  }}t|dd}| jdur:| |}| jdurN| |}||fS )z
        Args:
            index (int): Index

        Returns:
            tuple: (image, target) where target is index of the target class.
        L)modeN)r    intr!   r   r   r   )r"   r(   imgtargetr&   r&   r'   __getitem__7   s    



zSEMEION.__getitem__)r   c                 C   s
   t | jS N)lenr    )r"   r&   r&   r'   __len__M   s    zSEMEION.__len__c                 C   s*   | j }tj|| j}t|| js&dS dS )NFT)r   r   r   r   r   r
   md5_checksum)r"   r   Zfpathr&   r&   r'   r   P   s
    zSEMEION._check_integrityc                 C   s*   |   rd S | j}t| j|| j| j d S r/   )r   r   r   urlr   r2   )r"   r   r&   r&   r'   r   W   s    zSEMEION.download)NNT)__name__
__module____qualname____doc__r3   r   r2   r   strr   r   r   boolr   r+   tupler   r.   r1   r   r   __classcell__r&   r&   r$   r'   r      s$      
r   )os.pathr   pathlibr   typingr   r   r   r   numpyr   utilsr   r
   r   Zvisionr   r   r&   r&   r&   r'   <module>   s   