On 04/04/2017 10:17 AM, Michael Torrie wrote:
On 04/03/2017 11:31 PM, dieter wrote:
Dave <dbola...@fastmail.fm> writes:
I created a python program that gets data from a user, stores the data
as a dictionary in a list of dictionaries. When the program quits, it
saves the data file. My desire is to append the new data to the
existing data file as is done with purely text files.
Usually, you cannot do that:
"JSON" stands for "JavaScript Object Notation":
That's assuming he's using JSON; he never specified what he's using to
represent data as plain text. Though I suspect you're correct, for all
we know he could just be writing data using his own text representation
or writing to an ini file. And in his case it sounds like JSON is not
an ideal method for saving his data since he's wanting to only append
data, not read it in his program.
In the future, Dave, please provide all the information pertaining to
the problem so we can give accurate advice. Don't make us guess or
assume we can all infer this information.
I did. Please see the subject - it is json, not some bastardized
version of it. While I didn't explicitly say that the data is read back
in, it is - when the program starts. The user can enter more data, then
save the data to the list (append). Then, like any other program, they
can save the data to file.
I don't care for the idea of replacing the data file for every save. My
preference would to append to the existing data file - makes more sense.
However, that is not how json works. So, I'm considering other
alternatives for a data file structure. Paired data (key and value) is
not really required, but my feeling is that it makes the data file more
robust. A database seems a little over the top for this situation since
there is no querying of data - just load and save.
Dave,
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