相信我，我已尽力打印＆＃34; to_file＆＃34;在重写之后徒劳！ 似乎＆＃34; TypeError：强制转换为Unicode：需要字符串或缓冲区，找到文件＆＃34;
from sys import argv
from os.path import exists
script, from_file, to_file = argv
print "Copying from %s to %s" % (from_file, to_file)
# we could do these two on one line, how?
in_file = open(from_file)
indata = in_file.read()
print "The input file is %d bytes long" % len(indata)
print "Does the output file exist? %r" % exists(to_file)
print "Ready, hit RETURN to continue, CTRL-C to abort."
raw_input()
out_file = open(to_file, 'w')
out_file.write(indata)
print "Alright, all done."
out_file.close()
in_file.close()
print open(out_file).read()