在不知道特定键的情况下遍历Python字典

Question

I can't seem to figure out how to write this piece of Python Code.

I need to read something in from a file, which is this:

Jake FJ49FJH
Bob FJ49GKH

I've imported the file into a dictionary. I then check if the number plate (following the names) contains the sequence of two letters, two numbers, then three letters. Here is that part of the code:

d = {} # Blank Dictionary

with open("plates.txt") as f:
  d = dict(x.rstrip().split(None, 1) for x in f) # Put file into dictionary

names = d.keys()
print(names)
#carReg = ??


a,b,c = carReg[:2],carReg[2:4],carReg[4:]
if all((a.isalpha(),b.isdigit(),c.isalpha(),len(c)== 3)):
    print("Valid Reg")
else:
    print("Invalid Reg")
    # Now get the name of the person with the invalid carReg

As you can see, I don't know what to put for carReg . I need to loop through the dictionary, like in a list when you can use an integer to get part of the list. If the program returns Invalid Reg , then I need to get the key that the invalid reg belongs to - which will be a name.

Any help appreciated.

Answer 1

Iterate over dict.items() ; it'll give you the (key, value) pairs from the dictionary:

for name, car_registration in d.items():