python学习笔记一创建文件makeTextfile.py读取显示readTextFile.py

这个脚本提醒用户输入一个（尚不存在）的文件名，然后由用户输入该文件的每一行。最后，将所有文本写入文件。

    makeTextFIle.py

#!/usr/bin/env pythpn

'makeTextfile.py -- create text file'

import os
ls = os.linesep

# get filename
while True:
fname = raw_input('plz add fname')
if os.path.exists(fname):
print"ERROR: '%s' already exists" % fname
else:
break

# get file content (text) lines
all = []
print "\nEnter lines('.'by itself to quit).\n"

# loop until user terminates input
while True:
entry = raw_input('> ')
if entry == '.':
break
else:
all.append(entry)

# write lines to file with proper line-ending
fobj = open(fname, 'w')
fobj.writelines(['%s%s' % (x, ls) for x in all])
fobj.close()
print 'done'

    readTextFIle.py

#!/user/bin/env python

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

# 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()