[portland] Array writing question from landscape ecologist

[Ray Parrish]

John Naylor wrote:
> On Fri, Mar 12, 2010 at 5:24 PM, Ray Parrish <crp at cmc.net>
>
>   
>>>          for line in data4:
>>>              outfile.write(','.join([str(item) for item in line]))
>>>       
>
>   
>> Could you please explain to me what the ','.join() is doing in your write
>> command?
>>     
>
> See here:
>
> http://www.python.org/doc/faq/general/#why-is-join-a-string-method-instead-of-a-list-or-tuple-method
>
> John
>
>   
OK, I asked again too quick, after reading a reply from Ethan, I now 
understand that it is the separator string for the call to join(). The 
syntax just looked strange to me at first.

Later, Ray Parrish


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