Python核心编程第二版学习笔记

最近闲来无事，就翻了翻几年前买的一本《python核心编程（第二版）》，想学习一下python，然后在编写第三章例3.1时发现书上的代码是错误的。大家可以自己编写一下。然后自己修改了下，如下：

#/usr/bin/env python'makeTextFile.py -- create text file'import osls = os.linesep#get file namewhile True:    fname = raw_input('Enter a filename:')    if os.path.exists(fname):        print "Error: '%s' already exists" % fname    else:        breakall = []print "\n Enter lines ('.' by itself to quit).\n"#loop until user terminates inputwhile True:     enter = raw_input('>')     if enter == '.':        break     else:        all.append(enter)#write lines to file with proper line-endingfobj = open(fname,'w')fobj.writelines(['%s%s' % (x,ls) for x in all])fobj.close()print 'Done'