We Keep Coding

Comparing dictionary of list of dictionary/nested dictionary

There are two dict main and input, I want to validate the "input" such that all the keys in the list of dictionary and nested dictionary (if present/all keys are optional) matches that of the main if not the wrong/different key should be returned as the output.
main = "app":[{
"name": str,
"info": [
{
"role": str,
"scope": {"groups": list}
}
]
},{
"name": str,
"info": [
{"role": str}
]
}]
input_data = "app":[{
'name': 'nms',
'info': [
{
'role': 'user',
'scope': {'groups': ['xyz']
}
}]
},{
'name': 'abc',
'info': [
{'rol': 'user'}
]
}]
when compared input with main the wrong/different key should be given as output, in this case
['rol']

The schema module does exactly this.
You can catch SchemaUnexpectedTypeError to see which data doesn't match your pattern.
Also, make sure you don't use the word input as a variable name, as it's the name of a built-in function.

keys = []
def print_dict(d):
if type(d) == dict:
for val in d.keys():
df = d[val]
try:
if type(df) == list:
for i in range(0,len(df)):
if type(df[i]) == dict:
print_dict(df[i])
except AttributeError:
pass
keys.append(val)
else:
try:
x = d[0]
if type(x) == dict:
print_dict(d[0])
except:
pass
return keys
keys_input = print_dict(input)
keys = []
keys_main = print_dict(main)
print(keys_input)
print(keys_main)
for i in keys_input[:]:
if i in keys_main:
keys_input.remove(i)
print(keys_input)
This has worked for me. you can check above code snippet and if any changes provide more information so any chances if required.

Dictionary and lists compare theire content nested by default.
input_data == main should result in the right output if you format your dicts correctly. Try adding curly brackets "{"/"}" arround your dicts. It should probably look like something like this:
main = {"app": [{
"name": str,
"info": [
{
"role": str,
"scope": {"groups": list}
}
]
},{
"name": str,
"info": [
{"role": str}
]
}]}
input_data = {"app":[{
'name': 'nms',
'info': [
{
'role': 'user',
'scope': {'groups': ['xyz']
}
}]
},{
'name': 'abc',
'info': [
{'rol': 'user'}
]
}]}
input_data2 = {"app": [{
'name': 'nms',
'info': [
{
'role': 'user',
'scope': {'groups': ['xyz']
}
}]
}, {
'name': 'abc',
'info': [
{'rol': 'user'}
]
}]}
Comparision results should look like this:
input_data2 == input_data # True
main == input_data # False

Merge dictionaries with same key from two lists of dicts in python

I have two dictionaries, as below. Both dictionaries have a list of dictionaries as the value associated with their properties key; each dictionary within these lists has an id key. I wish to merge my two dictionaries into one such that the properties list in the resulting dictionary only has one dictionary for each id.
{
"name":"harry",
"properties":[
{
"id":"N3",
"status":"OPEN",
"type":"energetic"
},
{
"id":"N5",
"status":"OPEN",
"type":"hot"
}
]
}
and the other list:
{
"name":"harry",
"properties":[
{
"id":"N3",
"type":"energetic",
"language": "english"
},
{
"id":"N6",
"status":"OPEN",
"type":"cool"
}
]
}
The output I am trying to achieve is:
"name":"harry",
"properties":[
{
"id":"N3",
"status":"OPEN",
"type":"energetic",
"language": "english"
},
{
"id":"N5",
"status":"OPEN",
"type":"hot"
},
{
"id":"N6",
"status":"OPEN",
"type":"cool"
}
]
}
As id: N3 is common in both the lists, those 2 dicts should be merged with all the fields. So far I have tried using itertools and
ds = [d1, d2]
d = {}
for k in d1.keys():
d[k] = tuple(d[k] for d in ds)
Could someone please help in figuring this out?

Here is one of the approach:
a = {
"name":"harry",
"properties":[
{
"id":"N3",
"status":"OPEN",
"type":"energetic"
},
{
"id":"N5",
"status":"OPEN",
"type":"hot"
}
]
}
b = {
"name":"harry",
"properties":[
{
"id":"N3",
"type":"energetic",
"language": "english"
},
{
"id":"N6",
"status":"OPEN",
"type":"cool"
}
]
}
# Create dic maintaining the index of each id in resp dict
a_ids = {item['id']: index for index,item in enumerate(a['properties'])} #{'N3': 0, 'N5': 1}
b_ids = {item['id']: index for index,item in enumerate(b['properties'])} #{'N3': 0, 'N6': 1}
# Loop through one of the dict created
for id in a_ids.keys():
# If same ID exists in another dict, update it with the key value
if id in b_ids:
b['properties'][b_ids[id]].update(a['properties'][a_ids[id]])
# If it does not exist, then just append the new dict
else:
b['properties'].append(a['properties'][a_ids[id]])
print (b)
Output:
{'name': 'harry', 'properties': [{'id': 'N3', 'type': 'energetic', 'language': 'english', 'status': 'OPEN'}, {'id': 'N6', 'status': 'OPEN', 'type': 'cool'}, {'id': 'N5', 'status': 'OPEN', 'type': 'hot'}]}

It might help to treat the two objects as elements each in their own lists. Maybe you have other objects with different name values, such as might come out of a JSON-formatted REST request.
Then you could do a left outer join on both name and id keys:
#!/usr/bin/env python
a = [
{
"name": "harry",
"properties": [
{
"id":"N3",
"status":"OPEN",
"type":"energetic"
},
{
"id":"N5",
"status":"OPEN",
"type":"hot"
}
]
}
]
b = [
{
"name": "harry",
"properties": [
{
"id":"N3",
"type":"energetic",
"language": "english"
},
{
"id":"N6",
"status":"OPEN",
"type":"cool"
}
]
}
]
a_names = set()
a_prop_ids_by_name = {}
a_by_name = {}
for ao in a:
an = ao['name']
a_names.add(an)
if an not in a_prop_ids_by_name:
a_prop_ids_by_name[an] = set()
for ap in ao['properties']:
api = ap['id']
a_prop_ids_by_name[an].add(api)
a_by_name[an] = ao
res = []
for bo in b:
bn = bo['name']
if bn not in a_names:
res.append(bo)
else:
ao = a_by_name[bn]
bp = bo['properties']
for bpo in bp:
if bpo['id'] not in a_prop_ids_by_name[bn]:
ao['properties'].append(bpo)
res.append(ao)
print(res)
The idea above is to process list a for names and ids. The names and ids-by-name are instances of a Python set. So members are always unique.
Once you have these sets, you can do the left outer join on the contents of list b.
Either there's an object in b that doesn't exist in a (i.e. shares a common name), in which case you add that object to the result as-is. But if there is an object in b that does exist in a (which shares a common name), then you iterate over that object's id values and look for ids not already in the a ids-by-name set. You add missing properties to a, and then add that processed object to the result.
Output:
[{'name': 'harry', 'properties': [{'id': 'N3', 'status': 'OPEN', 'type': 'energetic'}, {'id': 'N5', 'status': 'OPEN', 'type': 'hot'}, {'id': 'N6', 'status': 'OPEN', 'type': 'cool'}]}]
This doesn't do any error checking on input. This relies on name values being unique per object. So if you have duplicate keys in objects in both lists, you may get garbage (incorrect or unexpected output).

Change all values of a specific key from json object

My json object:
"students": [
{
"name" : "ben",
"hometown" : "unknown"
},
{
"name" : "sam",
"hometown" : "unknown"
}
]
}
with this list
"hometowns":{California,Colorado}
change to this:
"students": [
{
"name" : "ben",
"hometown" : "California"
},
{
"name" : "sam",
"hometown" : "Colorado"
}
]
}
I need to loop and check if the key = "hometown" and change its value like
students[1].hometown == hometowns[1].

First, note that your syntax is a bit off (and your towns are actually states). After correcting the syntax, we can use the zip() function to iterate over both lists together:
hometowns = ["California", "Colorado"]
students = [{"name": "ben", "hometown": "unknown"},
{"name": "sam", "hometown": "unknown"}]
for student, hometown in zip(students, hometowns):
student['hometown'] = hometown
students
[{'name': 'ben', 'hometown': 'California'},
{'name': 'sam', 'hometown': 'Colorado'}]

You can do something like this
hometowns=["California","Colorado"]
students=[{"name" : "ben",},{"name" : "sam"}]
for student,town in zip(students,hometown):
student["hometown"]=town
I assumed you were trying to specify hometowns and students as variables rather than elements of a larger dictionary, which would change the syntax somewhat.

here is an alternative simple solution if you have not learnt about zip() in python:
hometowns = ["California","Colorado"]
a = {"students": [
{
"name" : "ben",
"hometown" : "unknown"
},
{
"name" : "sam",
"hometown" : "unknown"
}
] }
num = 0
for j in a["students"]:
j["hometown"] = hometowns[num]
num += 1
print(a)

Convert dict to list with same keys, values and layout

I´m trying to extract several keys/values out of a List.
My List:
a = [
{
"id": "1",
"system": "2",
},
{
"id": "3",
"system": "4",
}
]
Now i need to parse this into a function (next function) and it returns a[current] or a[0].
But now is a[current] or a[0] a dict.
Next step is just to extract the ID and the value of it. But this below only works if a is a list! So i need to convert the a[current] or a[0] into a list. The code below has to be the same because it´s a function and if i cannot change this for several reasons, so i need to convert the dict a into a list a.
c = list()
for data in a:
value = dict()
value["id"] = data.get("id")
c.append(value)
And here i stuck, i tried several methods like .keys(), .values(), but i can´t put them together to a list anymore. It needs to be scaleable/configurable because a changes from time to time (not a[0]["id"], ...). Currently a[0] looks like this: {'id': '1', 'system': '2'}, but it needs to be like this: [{'id': '1', 'system': '2'},], that i can parse it to my search function.
I need a new list like c:
c = [
{
"id": "1",
},
{
"id": "3",
}
]

Is this your your expected output:
a = [
{
"id": "1",
"system": "2",
},
{
"id": "3",
"system": "4",
}
]
c = list()
for data in a:
value={}
value["id"]=data.get("id")
c.append([value])
# c.extend([value])
print(c)
# [[{'id': '1'}], [{'id': '3'}]]
# print(c) # Extend's output
# [{'id': '1'},{'id': '3'}]
Or you can try one-line solution
print([[{"id":val.get("id")}] for val in a])
# [[{'id': '1'}], [{'id': '3'}]]
Or as your comment if you just want
[{'id': '1', 'system': '2'},]
Then :
print([a[0]])

code updated:
a = [
{
"id": "1",
"system": "2",
},
{
"id": "3",
"system": "4",
}
]
print([[value] for value in a ])
Result:
[[{'id': '1', 'system': '2'}], [{'id': '3', 'system': '4'}]]

Here is a function to filter your dicts list:
def filter_dicts(key, a):
return [{key: element[key]} for element in a]
Use it like this:
c = filter_dicts("id", a)
Note that this will cause an error if there is a dict without the specified key, which may or may not be what you want. To avoid this, replace element[key] with element.get(key, None).

How to deepmerge dicts/list for a json in python

I'm trying to deepmerge lists to get a specific json.
what I want to achieve is this format (the order of the elements is irelevant):
{
"report": {
"context": [{
"report_id": [
"Report ID 30"
],
"status": [
"Status 7"
],
"fallzahl": [
"Fallzahl 52"
],
"izahl": [
"IZahl 20"
]
}
],
"körpergewicht": [{
"any_event_en": [{
"gewicht": [{
"|magnitude": 185.44,
"|unit": "kg"
}
],
"kommentar": [
"Kommentar 94"
],
"bekleidung": [{
"|code": "at0011"
}
]
}
]
}
]
}
}
I try to deepmerge dicts and lists to achieve this specific format. My baseline are some dicts:
{'körpergewicht': [{'any_event_en': [{'gewicht': [{'|magnitude': '100', '|unit': 'kg'}]}]}]}
{'körpergewicht': [{'any_event_en': [{'bekleidung': [{'|code': 'at0013'}]}]}]}
{'körpergewicht': [{'any_event_en': [{'kommentar': ['none']}]}]}
{'context': [{'status': ['fatty']}]}
{'context': [{'fallzahl': ['123']}]}
{'context': [{'report_id': ['123']}]}
{'context': [{'izahl': ['123']}]}
what I tried to do is following I have a dict called tmp_dict in that I hold a baseline dict as I loop through. The so called collect_dict is the dict in that I try to merge my baseline dicts. element holds my current baseline dict.
if (index == (len(element)-1)): #when the baseline dict is traversed completely
if tmp_dict:
first_key_of_tmp_dict=list(tmp_dict.keys())[0]
if not (first_key_of_tmp_dict in collect_dict):
collect_dict.update(tmp_dict)
else:
merge(tmp_dict,collect_dict)
else:
collect_dict.update(tmp_dict)
and I also wrote a merge method:
def merge(tmp_dict,collect_dict):
first_common_key_of_dicts=list(tmp_dict.keys())[0]
second_depth_key_of_tmp_dict=list(tmp_dict[first_common_key_of_dicts][0].keys())[0]
second_depth_tmp_dict=tmp_dict[first_common_key_of_dicts][0]
second_depth_key_of_coll_dict=collect_dict[first_common_key_of_dicts][0]
if not second_depth_key_of_tmp_dict in second_depth_key_of_coll_dict:
collect_dict.update(second_depth_tmp_dict)
else:
merge(second_depth_tmp_dict,second_depth_key_of_coll_dict)
what I'm coming up with goes in the right direction but is far from beeing my desired output:
{"report": {
"k\u00f6rpergewicht": [{
"any_event_en": [{
"kommentar": ["none"]
}
],
"bekleidung": [{
"|code": "at0013"
}
],
"gewicht": [{
"|magnitude": "100",
"|unit": "kg"
}
]
}
],
"context": [{
"fallzahl": ["234"]
}
],
"report_id": ["234"],
"status": ["s"],
"izahl": ["234"]
}
}
With another set of inputs:
{'atemfrequenz': {'context': [{'status': [{'|code': 'at0012'}]}]}},
{'atemfrequenz': {'context': [{'kategorie': ['Kategorie']}]}},
{'atemfrequenz': {'atemfrequenz': [{'messwert': [{'|magnitude': '123', '|unit': 'min'}]}]}}
I would like to achieve the following output:
"atemfrequenz": {
"context": [
{
"status": [
{
"|code": "at0012"
}
],
"kategorie": [
"Kategorie"
]
}
],
"atemfrequenz": [
{
"messwert": [
{
"|magnitude": 123,
"|unit": "/min"
}
]
}
]
}

This code should get the correct answer. I removed the special character (ö) to prevent errors.
dd = [
{'korpergewicht': [{'any_event_en': [{'gewicht': [{'|magnitude': '100', '|unit': 'kg'}]}]}] },
{'korpergewicht': [{'any_event_en': [{'bekleidung': [{'|code': 'at0013'}]}]}]},
{'korpergewicht': [{'any_event_en': [{'kommentar': ['none']}]}]},
{'context': [{'status': ['fatty']}]},
{'context': [{'fallzahl': ['123']}]},
{'context': [{'report_id': ['123']}]},
{'context': [{'izahl': ['123']}]}
]
def merge(d):
if (type(d) != type([])): return d
if (type(list(d[0].values())[0])) == type(""): return d
keys = list(set(list(k.keys())[0] for k in d))
lst = [{k:[]} for k in keys]
for e in lst:
for k in d:
if (list(e.keys())[0] == list(k.keys())[0]):
e[list(e.keys())[0]] += k[list(k.keys())[0]]
for e in lst:
if (type(e[list(e.keys())[0]][0]) == type({})):
e[list(e.keys())[0]] = merge(e[list(e.keys())[0]])
for i in lst[1:]: lst[0].update(i)
lst2 = [] # return list of single dictionary
lst2.append(lst[0])
return lst2
dx = merge(dd)
dx = {'report': dx[0]} # no list at lowest level
print(dx)
Output (formatted)
{'report': {
'korpergewicht': [{
'any_event_en': [{
'kommentar': ['none'],
'bekleidung': [{'|code': 'at0013'}],
'gewicht': [{'|magnitude': '100', '|unit': 'kg'}]}]}],
'context': [{
'report_id': ['123'],
'izahl': ['123'],
'fallzahl': ['123'],
'status': ['fatty']}]}}
Concerning the second data set provided, the data needs to structured to match the previous data set.
This data set works correctly:
dd = [
{'atemfrequenz': [{'context': [{'status': [{'|code': 'at0012'}]}]}]},
{'atemfrequenz': [{'context': [{'kategorie': ['Kategorie']}]}]},
{'atemfrequenz': [{'atemfrequenz': [{'messwert': [{'|magnitude': '123', '|unit': 'min'}]}]}]}
]
Output (formatted)
{'report': {
'atemfrequenz': [{
'atemfrequenz': [{
'messwert': [{'|magnitude': '123', '|unit': 'min'}]}],
'context': [{
'kategorie': ['Kategorie'],
'status': [{'|code': 'at0012'}]}]}]}}