#!/usr/bin/env python
# encoding=utf-8 (pep 0263)
# fakty (DB)
# klici hasove tabulky jsou jmena potomku, hodnotami jmena rodicu
otec = dict(dana="milan", petr="milan", david="jan")
matka = dict(dana="pavla", petr="pavla", david="jana")
potomci = set(list(otec.keys()) + list(matka.keys()))
# pravidla
def rodic(x, y):
return y in otec and otec[y] == x or \
y in matka and matka[y] == x
def rodic_anyX(y):
xs = []
if y in otec:
xs.append(otec[y])
if y in matka:
xs.append(matka[y])
return xs
def sourozenci(x, y):
return x in otec and y in otec and otec[x] == otec[y] and x != y and \
x in matka and y in matka and matka[x] == matka[y]
def sourozenci_anyY(x):
ys = []
for y in potomci:
if sourozenci(x, y):
ys.append(y)
return ys
# demonstracni vypis
if __name__ == "__main__":
print("Vysledek dotazu otec['dana'] je '%s'." % otec["dana"])
print("Vysledek dotazu rodic_anyX('david') je %s." % \
rodic_anyX("david"))
print("Vysledek dotazu sourozenci_anyY('dana') je %s." % \
sourozenci_anyY("dana"))