ftp-VAX.py

# Python examples using ftplib package with VMS host.
# Rename VMS files during copy to have version number as part of filename.
# https://docs.python.org/2/library/ftplib.html
# efg, 7 May 2014

import os
from ftplib import FTP

NewLine = "\n"

# Establish local working directory
print os.getcwd()  # IDLE will set this path
os.chdir('C:/xxxx/Python/FTP-VAX/')
print os.getcwd(), NewLine

# Open FTP site
ftp = FTP('xx.xxx.xx.x', 'xxxxxxx', 'xxxxxxxx')
# ftp.login()  # not needed
print ftp.getwelcome(), NewLine

# Remote working directory
print ftp.pwd()

# Set remote working directory
ftp.cwd('scratch')

print NewLine, "nlst - filtered"
filenames = ftp.nlst('info.txt;*')
print type(filenames)
print filenames

print NewLine, "dir - filtered"
filelist = []
ftp.dir("info.txt;*", filelist.append)
for line in filelist:
    print "-", line

# Make local copies of set of files - preserve VMS version in filename
print NewLine, "Copying files (preserve VMS version) ..."
for filename in filenames:
    print filename
    ftp.retrbinary("RETR " + filename, open(filename, 'wb').write)

# Make local copies of files but move version to filename in front of
# file extension:  filename.ext;v -> filename-v.ext
# This enables Windows to interpret file extensions correctly.

print NewLine, "Copying files (move VMS version in  new filename) ..."
for filename in filenames:
    split1 = os.path.splitext(filename)
    split2 = split1[1].split(';')
    newfilename = split1[0] + '-' + split2[1] + split2[0]
    print filename, '->', newfilename
    ftp.retrbinary("RETR " + filename, open(newfilename, 'wb').write)

ftp.quit()