Pythonic JSON keys

my_var = 'bla';
api_key = 'key';
...lots of code here...
params = {"language": "en", my_var: api_key}

If you are used to JavaScript, variable evaluation in Python dictionaries won’t be what you expect it to be. This statement in JavaScript would result in the params object as follows:

{
    "language": "en",
    "my_var": "key"
}

In Python, however, it would result in the following dictionary:

{
    "language": "en",
    "bla": "key"
}

my_var is evaluated and its value is used as the key.