[IPython-dev] what goes wrong with %%file
Matt Davis
jiffyclub at gmail.com
Sun May 12 18:38:29 EDT 2013
I agree with Thomas that %%overwrite won't be a natural choice when the
file doesn't already exist. I think %%filesave or %%writefile would be good
choices.
- Matt
On Sun, May 12, 2013 at 3:28 PM, Thomas Kluyver <takowl at gmail.com> wrote:
> Not convinced by %%overwrite:
> - It doesn't make much sense when the file doesn't already exist
> - It should be usable the other way round as well - you know what you want
> to do (save some text to a file), find the quickest way to do that.
>
> My vote would be %%writefile.
>
> Thomas
>
>
> On 12 May 2013 22:56, Greg Wilson <gvwilson at third-bit.com> wrote:
>
>> On 2013-05-12 5:33 PM, Fernando Perez wrote:
>> > Mmh, %%overwrite... I didn't like it too much when I first saw it,
>> > but it's growing on me, and it has the advantage of being unambiguous
>> > about the destructive nature of the action.
>> >
>> Could we do a simple usability test in the spirit of
>> http://mail.python.org/pipermail/python-dev/2000-July/006427.html and
>> http://mail.python.org/pipermail/python-dev/2000-July/006098.html to
>> find out what users would expect each alternative to do? I've included a
>> very rough first cut below (which looks better with a monospaced font :-)
>> Thanks,
>> Greg
>>
>> --------------------
>>
>> You have a directory called 'data' that contains two files:
>>
>> * 'fish.csv' contains 160 lines of observations in comma-separated
>> values format.
>> * 'site.txt' contains 20 lines of text describing the site where you
>> collected data (in plain English).
>> * 'weather.txt' contains half a dozen lines of text about the weather
>> during your site visit.
>>
>> You run the IPython Notebook in that directory and do the operations
>> described below. What does the Notebook display when each cell
>> command is run (in the order shown, with all of the cell content typed
>> in before the cell is run), and what changes does it make inside the
>> 'data' directory and/or the files it contains when each cell is run?
>>
>> 1. +----------------------------------------+
>> |%%load fish.csv |
>> +----------------------------------------+
>>
>> 2. +----------------------------------------+
>> |%%display fish.csv |
>> +----------------------------------------+
>>
>> 3. +----------------------------------------+
>> |%%file site.txt |
>> +----------------------------------------+
>>
>> 4. +----------------------------------------+
>> |%%file weather.txt |
>> |Generally sunny, but on the last day |
>> |we had torrential rain followed by a |
>> |meteorite shower. |
>> +----------------------------------------+
>>
>> 5. +----------------------------------------+
>> |%%overwrite site.txt |
>> +----------------------------------------+
>>
>> 6. +----------------------------------------+
>> |%%overwrite site.txt |
>> |Typical riverbank site, some signs of |
>> |recent erosion due to road-building, |
>> |plus traces of metallic iridium left |
>> |behind by the mothership. |
>> +----------------------------------------+
>>
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>
>
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