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Code: Alles auswählen

#!/usr/bin/env python
# -*- coding: UTF-8 -*-


def write_list(f, the_list, split_ch=" "):
    for record in the_list: # write records to file
        line = split_ch.join(record)+"\n" # create line
        f.write(line)
    
def read_list(f, split_ch=" "):
    res = [] #result
    for line in f: # read line by line
        record = line.strip().split(split_ch) # split line to record
        res.append(record)
    return res


if __name__ == "__main__":
    import os
    fname = "test.dat"
    if os.path.exists(fname):
        my_file = file(fname, 'r')
        my_list = read_list(my_file)
        my_file.close()
        print my_list
    else:
        my_list = [["123", "test", "567"],
                   ["231", "foo", "890"],
                   ["312", "bar", "999"]]
        my_file = file(fname, 'w')
        write_list(my_file, my_list)
        my_file.close()
        print "liste gespeichert!"