Python编程核心之makeTextFile.py和readTextFile.py

引言：

　　最近大半年都在学习python编程，在双十一的时候购买了《Python编程核心》，看到makeTextFile.py和readTextFile.py两个例子有点错误，所以在这里给修正一下！

makeTextFile.py脚本：

#!/usr/bin/env python

#_*_coding:utf8_*_

'makeTextFile.py -- create text file'

import os

ls = os.linesep

#get filename

while True:

    #需要添加的语句，并且需要缩进，后面的四条语句也需要缩进

    fname = raw_input("please input file name:\n")

    if os.path.exists(fname):

        print "ERROR: '%s' already exists" % fname

    else:

        break

#get file content (text) Lines

all_list = []

"""原著上使用了all做list，但是在使用eclipse是发现有assignment to reserved built-in symbol:all的warning,所以就使用all_list"""

#all = []

print "\nEnter lines ('.' by itself to quit).\n"

#loop until user terminates input

while True:

    entry = raw_input('> ')

    if entry == '.':

        break

    else:

        all_list.append(entry)

#write lines to file with proper line-ending

fobj = open(fname,'w')

fobj.writelines(['%s%s' % (x,ls) for x in all_list])

fobj.close()

print 'DONE!'

readTextFile.py脚本：

#!/usr/bin/env python

#_*_coding:utf8_*_

'readTextFile.py -- read and display text file'

#from makeTextFile import fobj

#get filename

fname = raw_input('Enter filename: ')

print 

#attempt to open file for reading

try:

    fobj = open(fname,'r')

except IOError,e:

    print "*** file open error: ",e

else:

    #display contents to the screen

    for eachLine in fobj:

        print eachLine,

    fobj.close()

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