from ftplib import FTP import os import gzip from pprint import pprint #Connect to FTP Site ftp = FTP("ftp.wwpdb.org") ftp.login() #Navigate to appropriate directory ftp.cwd("/pub/pdb/data/structures/divided/XML/") folders = ftp.nlst() #Iterate through each subdirectory containing all the protein structures for folder in folders: print ("Listing the " + folder + " directory.") #Iterate through each protein structure try: ftp.cwd(folder) except: continue files = ftp.mlsd() if files is None: ftp.cwd('../') continue else: pprint(files) for file in [value for value in files if value is not None]: ftp.retrbinary("RETR " + file, open(file, 'wb').write) unzip = gzip.decompress(file) pprint(unzip) ftp.quit()
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