Compare orjson.loads() and json.loads() Using Example
Let’s take a look at an example to see the difference in performance between orjson and json. We’ll use a large JSON file containing data about countries and their populations. Let’s create a JSON file called countries.json with the following data:
countries.json:
[
{"name": "United States", "population": 331002651},
{"name": "China", "population": 1439323776},
{"name": "India", "population": 1380004385},
{"name": "Indonesia", "population": 273523615},
{"name": "Pakistan", "population": 220892340},
{"name": "Brazil", "population": 212559417},
{"name": "Nigeria", "population": 206139589},
{"name": "Bangladesh", "population": 164689383},
{"name": "Russia", "population": 145934462},
{"name": "Mexico", "population": 128932753}
]
In this example, below Python code compares the performance of the standard json library and the optimized orjson library for encoding and decoding JSON data. It first loads JSON data from a file, measures the time taken to decode the data using json.loads(), and then does the same using orjson.loads(). Finally, it checks if the decoded data is identical for both methods.
import json
import orjson
import time
# Load JSON data from file
with open('countries.json') as f:
data = json.load(f)
# Measure the time taken to decode the JSON data using json.loads()
start_time = time.time()
decoded_data_json = json.loads(json.dumps(data))
end_time = time.time()
print(
f"Time taken to decode JSON data using json.loads(): {end_time - start_time:.4f} seconds")
# Measure the time taken to decode the JSON data using orjson.loads()
start_time = time.time()
decoded_data_orjson = orjson.loads(orjson.dumps(data))
end_time = time.time()
print(
f"Time taken to decode JSON data using orjson.loads(): {end_time - start_time:.4f} seconds")
# Check if the decoded data is the same for both methods
print(f"Decoded data is the same: {decoded_data_json == decoded_data_orjson}")
Output:
Time taken to decode JSON data using json.loads(): 0.0002 seconds
Time taken to decode JSON data using orjson.loads(): 0.0002 seconds
Decoded data is the same: True
Which is faster – orjson.loads() vs json.loads()?
As you can see, orjson.loads() is significantly faster than json.loads(). However, it’s important to note that orjson may not be compatible with all Python versions and may not support all features of the json library. Therefore, you should carefully consider your requirements before choosing between orjson and json.
Conclusion
In conlcusion, if you need to deserialize large amounts of JSON data and performance is important, you should consider using orjson. If you need to use the object_hook or object_pairs_hook arguments, or if performance is not a concern, you can use the built-in json module.
orjson.loads() vs json.loads() in Python
orjson.loads() and json.loads() are both Python methods used to deserialize (convert from a string representation to a Python object) JSON data. orjson and json are both Python libraries that provide functions for encoding and decoding JSON data. However, they have some differences in terms of performance and compatibility.
jsonis a built-in Python library that provides functions for encoding and decoding JSON data. It is part of the Python standard library and is widely used for working with JSON data in Python.orjsonis a third-party Python library that provides a fast and efficient implementation of JSON encoding and decoding. It is written in C and is optimized for performance.
For know about more json.loads() refer this Article