python code to check uppercase code example

Example 1: javascript check if string is json parsable

var isJsonParsable = string => {
    try {
        JSON.parse(string);
    } catch (e) {
        return false;
    }
    return true;
}

Example 2: how to check if a letter is lowercase in python

for c in s:
    if c.islower():
         print c