#x=[7,1,2,3,4] x=7,1,2,3,4 #del x[1] #x.remove(1) #print(x) #print(id(x)) #x=[] #print(id(x)) #x.sort() #y=sorted(x) print(x) d={'a':1, 'b':2} print(d.keys()) print(d.values()) print(d.items()) x=[1,2,3,4] print(5 in x) #5 not in the list = False print (1 in d.values())