input = json.load(sys.stdin)
print(input['id'])
When I input {"id":1} and hit enter, my program does not continue, I am just stuck typing in my input. How can I make the program continue after valid json has been passed to my stdlin?
2 Answers
when you read in from sys.stdin it will read everything until it hits an EOF character normally ctrl-d so if you input {"id":1} <ENTER> ctrl-d it should work.
It looks like what you are trying to do is something like this
import json
json_as_str = input()
json_obj = json.loads(json_as_str)
print(json_obj['id'])
Comments
I tried the code interactively by pasting the two lines in and then realised the second line was being interpreted as part of the JSON the first line was reading! As a module the code works perfectly predictably. The visible input was followed by a newline and CTRL/D on the console.
sholden$ cat /tmp/py.py
import json, sys
input = json.load(sys.stdin)
print(input['id'])
sholden$ python /tmp/py.py
{"id": 42}
42
importstatements in your code. And don't useinputas a variable name, that shadows the built-ininputfunction.json.loadtakes an open file and reads its whole contents, and the documentation states that it usesread()to do so.