Python files the writelines () method and a processing list double

Outline

the writelines ()  method is used to write a sequence of strings to the file.

This sequence may be generated by an iterative string object, such as a list of strings.

Wrap the need to develop a newline \ n.

grammar

the writelines () method has the following syntax:

fileObject.writelines( [ str ])

data = ['a','b','c']
with open("data.txt","w") as f:
    f.writelines(data)

Output:

 For double data list

data = [ ['a','b','c'],['a','b','c'],['a','b','c']]
Open with ( " data.txt " , " W " ) AS F:
     for I in Data:   # for double data list 
        I = STR (I) .strip ( ' [ ' ) .strip ( ' ] ' ). Replace ( ' , ' , '' ) .replace ( ' \' ' , ' ' ) + ' \ n- '   # in which each of a list of strings normalized to 
        f.write (i)

Output:

 

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