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Subject: Re: [python] Buducnost Pythonu: lambda, map, filter
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Xref: csiph.com cz.comp.lang.python:3220

Ano! A je to pěkná ukázka stability jazyka, není-liž pravda?

Nabízím ještě tvořivě generátor sad buněk dělených tabulátorem. :-)

line_cells = (line.split('\t') for line in open('data.txt'))

Po konzumaci generátoru se soubor sám zavře (Python 2.7.12 i 3.5.2).
To samé platí i pro `for line in open(...):`.

Hezké Vánoce,

V.


On 13.12.2017 10:02, Pavel Schön wrote:
> Děkujeme za oživení 11 let starého vlákna, na tyto věci se prostě nesmí zapomenout... :-)
>
> Dne úterý 12. prosince 2017 13:51:54 UTC+1 Petr Mach napsal(a):
>> Dnes je ještě lepší toto:
>> with open('data.txt') as f:
>>     for line in f:
>>         print line
>>
>>
>>
>> Dne 31. 3. 2017 13:35 napsal uživatel "Petr Přikryl" <pri...@atlas.cz>:
>> Roman Miklos napsal(a):
>>
>>
>> Radsej by som naopak uvital keby sa preberalo stale viac, napriklad keby
>>
>> bolo mozne namiesto
>>
>>
>>
>> f = open("data.txt")
>>
>> line = f.readline() while line:
>>
>>   print line
>>
>>   line = f.readline()
>>
>> f.close()
>>
>>
>>
>> napisat jednoducho ako v Perle a C++
>>
>>
>>
>> f = open("data.txt")
>>
>> while line = f.readline():
>>
>>   print line f.close()
>>
>>
>>
>>
>> Já raději píšu
>>
>>
>>
>> f = open("data.txt")
>>
>> for line in f:
>>
>>     print line
>>
>> f.close()
>>
>>
>>
>>
>>
>> pepr