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Groups > comp.lang.python > #44223
| References | <9d0d46e5-b579-4edc-be34-0aa8798b66f8@googlegroups.com> |
|---|---|
| Date | 2013-04-23 14:49 -0700 |
| Subject | Re: Reading a CSV file |
| From | Dan Stromberg <drsalists@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.1000.1366753795.3114.python-list@python.org> (permalink) |
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On Tue, Apr 23, 2013 at 2:39 PM, Ana Dionísio <anadionisio257@gmail.com>wrote: > Hello! > > I need to read a CSV file that has "n" rows and "m" columns and if a > certain condition is met, for exameple n==200, it prints all the columns in > that row. How can I do this? I tried to save all the data in a > multi-dimensional array but I get this error: > > "ValueError: array is too big Use: csv.reader(*csvfile*, *dialect='excel'*, ***fmtparams*)¶<http://docs.python.org/2/library/csv.html#csv.reader> This will allow you to iterate over the values, instead of reading them all into memory at once. csv.reader is documented at: http://docs.python.org/3/library/csv.html http://docs.python.org/2/library/csv.html
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Reading a CSV file Ana Dionísio <anadionisio257@gmail.com> - 2013-04-23 14:39 -0700
Re: Reading a CSV file Dan Stromberg <drsalists@gmail.com> - 2013-04-23 14:49 -0700
Re: Reading a CSV file Ana Dionísio <anadionisio257@gmail.com> - 2013-04-23 14:58 -0700
Re: Reading a CSV file Ana Dionísio <anadionisio257@gmail.com> - 2013-04-23 15:40 -0700
Re: Reading a CSV file Fábio Santos <fabiosantosart@gmail.com> - 2013-04-24 00:30 +0100
Re: Reading a CSV file Dave Angel <davea@davea.name> - 2013-04-23 23:18 -0400
Re: Reading a CSV file Dan Stromberg <drsalists@gmail.com> - 2013-04-23 15:34 -0700
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