# Soubor by_ba_mv.py - kombinace argumentů. Soubor lze načíst 
# a realizovat v aplikaci Thonny či IDLE. 

# Provozní poznámky:'''
Typ 'set' pro 'bytes' nesmí obsahovat typ 'string'.
Klíč typu 'dictionary' nesmí být řetězcem.


# Objekty různých typů:

li, tu = [1, 2, 3, 4], (1, 2, 3, 4)          # list, tuple 
rg, sg = range(2,6), "růže"                  # range, string
st = {4, 7, 4, True}                         # set
fs = frozenset(st)                           # frozenset
dc = {4:"size", 5:"Karel"}                   # dictionary
by = bytes(sg,'utf-8')                       # bytes from string
ba, mv = bytearray(by), memoryview(by)       # bytearray, memoryview
                         
# Objekty typu bytes:

byli, bytu = bytes(li), bytes(tu), 
byrg, bysg = bytes(rg), bytes(sg, 'utf-8')
byst, byfs, bydc = bytes(st), bytes(fs), bytes(dc)
byby, byba, bymv = bytes(by), bytes(ba), bytes(mv)
'''
print("byli, bytu =", byli, bytu, end="\n")
print("byrg, bysg =", byrg, bysg, end="\n")
print("byst, byfs, bydc =", byst, byfs, bydc, end="\n")
print("byby, byba, bymv =", byby, byba, bymv, end="\n") 
print()'''

# Objekty typu bytearray:

bali, batu = bytearray(byli), bytearray(bytu) 
barg,basg = bytearray(byrg), bytearray(bysg)
bast, bafs, badc = bytearray(byst), bytearray(byfs), bytearray(bydc)
baby, baba, bamv = bytearray(byby), bytearray(byba), bytearray(bymv)
'''
print("bali, batu =", bali, batu, end="\n")
print("barg, basg =", barg, basg, end="\n")
print("bast, bafs, badc =", bast, bafs, badc, end="\n")
print("baby, baba, bamv =", baby, baba, bamv, end="\n")
print()'''

# Objekty typu memoryview:

mvli, mvtu = tuple(memoryview(byli)), tuple(memoryview(bytu))
mvrg, mvsg = tuple(memoryview(byrg)), tuple(memoryview(bysg))
mvst, mvfs, mvdc = tuple(memoryview(byst)), tuple(memoryview(byfs)), tuple(memoryview(bydc))
mvby, mvba, mvmv = tuple(memoryview(byby)), tuple(memoryview(byba)), tuple(memoryview(bymv))
'''
print("mvli, mvtu =", mvli, mvtu, end="\n")
print("mvrg, mvsg =", mvrg, mvsg, end="\n")
print("mvst, mvfs, mvdc =", mvst, mvfs, mvdc, end="\n")
print("mvby, mvba, mvmv =", mvby, mvba, mvmv, end="\n")
'''