Hi Denis,
For reference, you can explore the documentation to find out what strings
can do:
http://docs.python.org/3/library/stdtypes.html#text-sequence-type-str
> What is the method to get a code or list of codes inside a string:
> s = "abcde"
> c = s.code(2)
> assert(c == 0x63)
> ?
Strings are sequences, so we can iterate over them to get the individual
code points, using the ord() function:
http://docs.python.org/3/library/functions.html#ord
For example:
#################
>>> map(ord, "abcde")
[97, 98, 99, 100, 101]
#################
If you prefer list comprehensions, its use is similar:
#############################################
>>> [ord(ch) for ch in "hello world"]
[104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100]
#############################################
> Is there a method to compare a substring, without building a substring
from the big one? Like startswith or endswith, but anywhere inside the
string?
> test = s[1, -1] == "bcd" # no!, builds a substring
> test = s.sub_is(1, -1, "bcd") # yes! what I'm searching
>
According to:
http://docs.python.org/3/library/stdtypes.html#str.find
you can optionally pass in "start" and "end" keyword arguments to apply
boundaries on the string you're searching.
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