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    PSic                     @   sh   d dl mZ d dlmZmZmZmZ d dlZddl	m
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    )Path)AnyTupleCallableOptionalN   )make_dataset)verify_str_argdownload_and_extract_archive)VisionDatasetc                       s   e Zd ZdZdZdZdeeee ee e	dd fdd	Z
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ddZ  ZS )RenderedSST2a0  `The Rendered SST2 Dataset <https://github.com/openai/CLIP/blob/main/data/rendered-sst2.md>`_.

    Rendered SST2 is an image classification dataset used to evaluate the models capability on optical
    character recognition. This dataset was generated by rendering sentences in the Standford Sentiment
    Treebank v2 dataset.

    This dataset contains two classes (positive and negative) and is divided in three splits: a  train
    split containing 6920 images (3610 positive and 3310 negative), a validation split containing 872 images
    (444 positive and 428 negative), and a test split containing 1821 images (909 positive and 912 negative).

    Args:
        root (string): Root directory of the dataset.
        split (string, optional): The dataset split, supports ``"train"`` (default), `"val"` and ``"test"``.
        transform (callable, optional): A function/transform that  takes in an 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. Default is False.
    z>https://openaipublic.azureedge.net/clip/data/rendered-sst2.tgzZ 2384d08e9dcfa4bd55b324e610496ee5trainNF)rootsplit	transformtarget_transformdownloadreturnc                    s   t  j|||d t|dd| _dddd| _t| jd | _dd	g| _d
dd| _	|r`| 
  |  sptdtt| j| j| j  dd| _d S )N)r   r   r   )r   valtestr   validr   zrendered-sst2negativepositiver   r   )r   r   z;Dataset not found. You can use download=True to download it)png)
extensions)super__init__r	   _split_split_to_folderr   r   _base_folderclassesclass_to_idx	_download_check_existsRuntimeErrorr   str_samples)selfr   r   r   r   r   	__class__ ^/var/www/html/django/DPS/env/lib/python3.9/site-packages/torchvision/datasets/rendered_sst2.pyr   $   s    
zRenderedSST2.__init__)r   c                 C   s
   t | jS )N)lenr&   r'   r*   r*   r+   __len__;   s    zRenderedSST2.__len__c                 C   sH   | j | \}}tj|d}| jr0| |}| jr@| |}||fS )NRGB)r&   PILImageopenconvertr   r   )r'   idx
image_filelabelimager*   r*   r+   __getitem__>   s    

zRenderedSST2.__getitem__c                 C   s   d| j  S )Nzsplit=)r   r-   r*   r*   r+   
extra_reprJ   s    zRenderedSST2.extra_reprc                 C   s4   t | jD ]$}| j| j| j  |  s
 dS q
dS )NFT)setr    r   r   r   is_dir)r'   class_labelr*   r*   r+   r#   M   s    zRenderedSST2._check_existsc                 C   s$   |   rd S t| j| j| jd d S )N)download_rootmd5)r#   r
   _URLr   _MD5r-   r*   r*   r+   r"   S   s    zRenderedSST2._download)r   NNF)__name__
__module____qualname____doc__r?   r@   r%   r   r   boolr   intr.   r   r   r8   r9   r#   r"   __classcell__r*   r*   r(   r+   r      s(       r   )pathlibr   typingr   r   r   r   	PIL.Imager0   folderr   utilsr	   r
   visionr   r   r*   r*   r*   r+   <module>   s   