Reading and Writing JSON Files¶
JSON files are really useful. They let you store not just plain text, but dictionaries! You pronounce them as “Jay-Sawn” (Jason is more like “Jay-Sun”, which isn’t quite right here)
Writing a JSON file¶
Writing a JSON file is called “dumping”.
1 2 3 4 5 6 | import json
bunny_dict = {"name": "Euclid", "age": 2}
with open("bunny.json", "w") as fp:
json.dump(bunny_dict, fp)
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And that’s it! One nice part about JSON is it that you can dump a JSON dictionary to a string instead of a file!
1 2 3 4 5 6 7 | import json
bunny_dict = {"name": "Euclid", "age": 2}
new_str = json.dumps(bunny_dict)
print(new_str)
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Notice that it is json.dumps
now. The s in dumps
means “dump string”.
Reading a JSON file¶
Loading a JSON file is called “loading”
1 2 3 4 | import json
with open("bunny.json", "r") as fp:
bunny_dict = json.load(fp)
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Pretty easy! The nice part about using JSON is that you can use dictionaries to store information. This means you can store and load information which requires more structure than a plain string, like character information or save game state.