一个简单的python读写文件脚本

    #!/usr/bin/env python  
      
    'makeFile.py -- create a file'  
      
    import os  
    ls = os.linesep  
      
    # get filename  
    while True:  
        fname = raw_input('Input an unused file name >')  
        if os.path.exists(fname):  
            print "ERROR: '%s' already exists" %fname  
        else:  
            break  
      
    # get file content lines  
    all = []  
    print "nEnter lines (input '.' 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'  
      
    if __name__ == '__main__':  
        print 'innter module'  

    #!/usr/bin/env python  
      
    'readFile.py -- read and display 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()