Python Check if two list of jsons are equal

Question

I have two list of JSON objects:

[{u'amount': 12000, u'address': u'mqdofsXHpePPGBFXuwwypAqCcXi48Xhb2f'},
 {u'amount': 1000, u'address': u'mkVuZV2kVtMzddQabFDanFi6DTwWYtgiCn'}]

[{"amount": 12000, "address": "mqdofsXHpePPGBFXuwwypAqCcXi48Xhb2f"},
 {"amount": 1000, "address": "mkVuZV2kVtMzddQabFDanFi6DTwWYtgiCn"}]

They might come in different orders, or one might be a subset of the other or just different addresses, I need a function to just say True if both include the same addresses/amounts or False if they are different.

I guess the problem is one has unicode keys/values but the other ones are strings.

I've spent too much time on this simple issue that have no clue what else to do.

That isn't valid JSON, it looks like the Python dict literal syntax. — user1726343
– user1726343, Commented Apr 2, 2015 at 20:44
I printed them out for logging with ("%s - %s" % (outputs, new_outputs)) — Shayan
– Shayan, Commented Apr 2, 2015 at 20:47
@Asad yes, the pair matters. even if you swap the amounts for each addresses it should return False — Shayan
– Shayan, Commented Apr 2, 2015 at 20:48
stackoverflow.com/questions/7611854/… stackoverflow.com/questions/4527942/… tutorialspoint.com/python/dictionary_cmp.htm — Celeo
– Celeo, Commented Apr 2, 2015 at 20:48

Óscar López · Accepted Answer · 2015-04-02 20:51:12Z

2

The trick here is to use a data structure that ignores the order in which elements appear when performing an equality comparison - say, a set. Try this, which uses set comprehensions for extracting the addresses and amounts from each list:

{(d['address'], d['amount']) for d in lst1} == {(d['address'], d['amount']) for d in lst2}

edited Apr 2, 2015 at 20:51

answered Apr 2, 2015 at 20:46

Óscar López

237k38 gold badges321 silver badges391 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Shayan Over a year ago

the key value should be the same to be True, both address and the amount.

Shayan Over a year ago

anyhow I'd try a nested if

user1726343 Over a year ago

@Shayanbahal You can just concatenate the address and amount and compare.

user1726343 Over a year ago

@Shayanbahal {(json['address'], json['amount']) for json in lst1} == {(json['address'], json['amount']) for json in lst2}

Shayan · Accepted Answer · 2015-04-07 15:53:47Z

0

so in the end this is what I wrote, might not be the most efficient way but it works!

def json_equal(json1,json2):

   number_of_items = len(json1)
   for item in json1:
       for item2 in json2:
           if item["address"] == item2["address"]:
               if item["amount"] == item2["amount"]:
                   number_of_items -= 1
                   break
           else:
               continue
   if number_of_items == 0:
       return True
   else:
       return False

answered Apr 7, 2015 at 15:53

Shayan

5487 silver badges24 bronze badges

Collectives™ on Stack Overflow

Python Check if two list of jsons are equal

2 Answers 2

4 Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related