setup.py 文件源码

def downloadFileIfNotExist(self,url):

        """Downloads URL if file does not already exist.

        Args:
            url (str): URL to download.

        Returns:
            tuple: Tuple containing:

                * fnDL (str): Donwload filename
                * folderFn (str): Filename of extracted download files

        """

        import wget

        cwd=os.getcwd()+"/"

        if not os.path.exists(cwd+os.path.basename(url)):
            print cwd+os.path.basename(url) +" does not exist, will download it."
            folderFn=wget.download(url)
        else:
            print cwd+os.path.basename(url) +" alreay exists, will not download."
            folderFn=os.path.basename(url)
        fnDL=str(folderFn)
        print

        return folderFn, fnDL