U
    hA                     @   sT   d dl Z d dlmZ d dlmZmZmZ ddlmZ ddl	m
Z
 G dd deZdS )	    N)Path)CallableOptionalUnion   )ImageFolder)download_and_extract_archivec                       sj   e Zd ZdZdeeef ee ee e	dd fddZ
eddd	Ze	dd
dZddddZ  ZS )EuroSATa  RGB version of the `EuroSAT <https://github.com/phelber/eurosat>`_ Dataset.

    Args:
        root (str or ``pathlib.Path``): Root directory of dataset where ``root/eurosat`` 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. Default is False.
    NF)root	transformtarget_transformdownloadreturnc                    st   t j|| _t j| jd| _t j| jd| _|r>|   |  sNt	dt
 j| j||d t j|| _d S )NZeurosatZ2750z;Dataset not found. You can use download=True to download it)r   r   )ospath
expanduserr
   join_base_folder_data_folderr   _check_existsRuntimeErrorsuper__init__)selfr
   r   r   r   	__class__ N/var/www/html/venv/lib/python3.8/site-packages/torchvision/datasets/eurosat.pyr      s    zEuroSAT.__init__)r   c                 C   s
   t | jS N)lenZsamplesr   r   r   r   __len__+   s    zEuroSAT.__len__c                 C   s   t j| jS r   )r   r   existsr   r    r   r   r   r   .   s    zEuroSAT._check_existsc                 C   s0   |   rd S tj| jdd td| jdd d S )NT)exist_okz/https://madm.dfki.de/files/sentinel/EuroSAT.zipZ c8fa014336c82ac7804f0398fcb19387)Zdownload_rootmd5)r   r   makedirsr   r   r    r   r   r   r   1   s    zEuroSAT.download)NNF)__name__
__module____qualname____doc__r   strr   r   r   boolr   intr!   r   r   __classcell__r   r   r   r   r	   	   s      
r	   )r   pathlibr   typingr   r   r   folderr   utilsr   r	   r   r   r   r   <module>   s
   