Python - If > 16 and for in dictionary list comprehension-CodePudding

I need to make a function that returns a dictionary where values are doubled if values from previous dictionary are bigger than 10

def dbl(d1):
    d = {x: d1.get(x, 0) * 2 for x in set(d1)}
    return d

This is my code that doubles. I can't figure out where to put if > 10

My try:

a = {"a": 1, "b": 17, "c": 15} 

def dbl(d1):
    d = {x: d1.get(x, 0) * 2 for x in set(d1) if x > 10}
    return d

TypeError: '>' not supported between instances of 'str' and 'int'

CodePudding user response：

Any item in set(d1) gives you one of dictionary keys ("a", "b", "c"), not dictionary values. Try to put if d1[x] > 10 instead of if x > 10

CodePudding user response：

Using dict comprehension you can do is as follows :

def dbl(d1):
    d = {k:v*2  if v>10 else v for (k,v) in d1.items()}
    return d

This solution permits to keep the value that are < 10 and double the ones that are > 10.