Hi Vimal, > I need to write a function which converts a datastore data to csv format, which is downloadable.
Your code seems to reading a CSV file rather than writing to it. Use a DictWriter rather than a DictReader. But if you need to make it downloadable via a browser, then you need to use a web framework like Django. Check out the CSV output section <https://docs.djangoproject.com/en/dev/howto/outputting-csv/> from Django docs. Regards, Arun On Tue, Jul 29, 2014 at 10:15 AM, HUSSAIN BOHRA <hussainbo...@gmail.com> wrote: > I think with datastore, you meant to say 'Google App Engine Datastore'... ? > If this is the case, please read API details available at: > https://developers.google.com/appengine/docs/python/datastore/ > > This would help you extracting data out of datastore. > > Thanks, > > > > On Mon, Jul 28, 2014 at 11:39 PM, Gora Mohanty <g...@mimirtech.com> wrote: > > > On 28 July 2014 21:49, VIMAL K <vima...@ieee.org> wrote: > > > > > > Hello, > > > i am new to python. I need to write a function which converts a > datastore > > > data to csv format, which is downloadable. I researched upon the topic > > over > > > google, got few and less info on it. The code till now is below: > > > > > > What do you mean by "datastore" in this context? > > > > > > > > > > > def calllog_csv(self): > > > from collections import defaultdict > > > date = datetime.strptime('01/01/2014', '%m/%d/%Y') > > > qry = CallLog.query().filter(CallLog.created >= date, > > > CallLog.created <= datetime.now()).fetch() > > > columns = defaultdict(qry) > > > log.debug("query===>" + str(columns)) > > > with open('calllog.csv', 'w') as csv_log: > > > reader = csv.DictReader(csv_log) > > > for row in reader: > > > for (k, v) in row.items(): > > > columns[k].append(v) > > > log.debug("columns== from==>" + str(columns['from'])) > > > return columns > > > > > > Tell me where i am wrong, or am i right? any suggestions would be > > helpfull. > > > Thank you all in advance > > > > > > Would you be kind enough to explain how this code snippet relates to > > the description > > of what you wanted the code to do? It seems to be cut-and-pasted from > > somewhere > > else, and I cannot see how it is relevant. What in the world is > "CallLog"? > > > > Regards, > > Gora > > _______________________________________________ > > BangPypers mailing list > > BangPypers@python.org > > https://mail.python.org/mailman/listinfo/bangpypers > > > > > > -- > Hussain Bohra > Tavant Technologies > _______________________________________________ > BangPypers mailing list > BangPypers@python.org > https://mail.python.org/mailman/listinfo/bangpypers > _______________________________________________ BangPypers mailing list BangPypers@python.org https://mail.python.org/mailman/listinfo/bangpypers
