Τη Σάββατο, 8 Ιουνίου 2013 9:47:53 μ.μ. UTC+3, ο χρήστης Chris Angelico έγραψε:
> Fortunately, Python lets us hide away pretty much all those details,
> just as it lets us hide away the details of what makes up a list, a
> dictionary, or an integer. You can safely assume that the string "foo"
> is a string of three characters, which you can work with as
> characters. The chr() and ord() functions let you switch between
> characters and numbers, and str.encode() and bytes.decode() let you
> switch between characters and byte sequences. Once you get your head
> around the differences between those three, it all works fairly
> neatly.
I'm trying too!
So,
chr('A') would give me the mapping of this char, the number 65 while
ord(65) would output the char 'A' likewise.
>and str.encode() and bytes.decode() let you switch between characters and byte
>>sequences. Once
What would happen if we we try to re-encode bytes on the disk?
like trying:
s = "νίκος"
utf8_bytes = s.encode('utf-8')
greek_bytes = utf_bytes.encode('iso-8869-7')
Can we re-encode twice or as many times we want and then decode back
respectively lke?
utf8_bytes = greek_bytes.decode('iso-8859-7')
s = utf8_bytes.decoce('utf-8')
Is somethign like that totally crazy?
And also is there a deiffrence between "encoding" and "compressing" ?
Isnt the latter useing some form of encoding to take a string or bytes to make
hold less space on disk?
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