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4   persistence





                                            Saving data to files










                         I’m in a bit of a pickle...my
                         data is not as persistent as
                         it could be.





























                       It is truly great to be able to process your file-based data.
                       But what happens to your data when you’re done? Of course, it’s best to save your
                       data to a disk file, which allows you to use it again at some later date and time. Taking
                       your memory-based data and storing it to disk is what persistence is all about. Python
                       supports all the usual tools for writing to files and also provides some cool facilities for
                       efficiently storing Python data. So…flip the page and let’s get started learning them.





                                                                                  this is a new chapter    105
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