jak zkontrolovat, zda var existuje python
# for local
if 'myVar' in locals():
# myVar exists.
# for globals
if 'myVar' in globals():
# myVar exists.
jak zkontrolovat, zda proměnné v pythonu je, jaký druh
kind = "World"
print(type(kind))
kind2 = 0876
print(type(kind2))