python - StringIO- read in memory str

StringIO

In many cases, the data read and write is not necessarily a file, you can also read and write in memory. StringIO is read in memory str

from IO Import StringIO 

F = StringIO ()     # Create Object StringIO 
I = f.write ( ' Hello ' )   # writes the string 
# Return Value: returns a string number 
I = f.write ( ' Li ' ) 
STR = f.getvalue ()   # read the string 

FF = the StringIO ( ' the Hello! \ Nhi! \ nGoodbye! ' ) 
S = ff.readline ()   # reads a line 
Print (S)

 

 

BytesIO 

StringIO operation can only be str, if you are working with binary data, you need to use BytesIO

BytesIO achieve read and write bytes in memory