for

list

list = ["a", "b" ]
for i in list:              # i sind Elemente
    print i                 # output: a
                            #         b
range(2) = [ 0, 1 ]         # ist nummerierte Liste
for i in range(2):
    print i                # output        0
                                   #               1
for i in range( len(list) ):
    print list[i]          # output: a 
                                   #         b

………………………………………………………………………….
dictionary
dict = {„a“=5,
.            „b“ = 8  }
for i in dict:                     // i sind keywords
.            print i                  // output   a
.                                          //                 b
print dict(„i“)                 // output  5
.                                         //                  8