# Demand # after a project, we collect data from sensors, not 1G data collection, data analysis done, save only the final results # such a large temporary files if resident in memory, will consume a large amount of memory resources, we may be used to store temporary files (external memory) # automatically delete the temporary file name does not need, and closes after: advantages # solution: TempporaryFile and NameTempporaryFile under standard library using the tempfile from the tempfile Import TemporaryFile, NamedTemporaryFile F = TemporaryFile () # generated examples of temporary files, temporary files do not appear in the disk directory in the n-NamedTemporaryFile = (delete = True) # generate temporary files instance, temporary files will appear in the disk directory delete delete True False saved after the delete parameter specifies the file f.write ( " ABCs " * 100000 ) f.seek (0) # the file pointer at the head f.read (100) # Before reading the file read only file 100