Make all values in a dictionary lower-case

Question

Python

How do you take a dictionary (consisting only of strings) and make all of the values in said dictionary lowercase?

`{k: v.lower() for k, v in d.items()}` – jpp Jun 25 '18 at 16:19 — jpp, Jun 25 '18 at 16:19

Taohidul Islam · Accepted Answer · 2018-06-25T16:48:23.773

2

my_dict ={"first":"ABC","second":"abC","third":"aBc"}
for i in my_dict.keys():
    my_dict[i] = my_dict[i].lower()

Update (for list as dictionary value):

my_dict ={"first":"ABC","second":"abC","third":"aBc","fourth":["Avd","Dfe"]}
for i in my_dict.keys():
    if type(my_dict[i]) is list:
        my_dict[i]=  [j.lower() for j in my_dict[i]]
    else:
        my_dict[i] = my_dict[i].lower()
print(my_dict)

Output:

{'first': 'abc', 'second': 'abc', 'third': 'abc', 'fourth': ['avd', 'dfe']}

edited Jun 25 '18 at 16:48

answered Jun 25 '18 at 16:19

Taohidul Islam

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I should have clarified. But some of my dict keys have a list as a variable. So in the case of your example it may look like: `"first": ["ABC","DEF"]` – jbenfleming Jun 25 '18 at 16:41
Please check my updated answer. – Taohidul Islam Jun 25 '18 at 16:48
Thank you very much. This is perfect! – jbenfleming Jun 25 '18 at 16:54

Make all values in a dictionary lower-case

1 Answers1