In case you are looking for how to convert all keys of dictionary into lower case : Python .Here ( Data Science Learner ) are some code tweaks with output and sample python code .
1. Convert all keys of dictionary into lower case –
my_dict = {'KEY1': "Hello", 'Key2': "World"}
new_dict = dict((k.lower(), v) for k, v in my_dict .items())
print(new_dict
Output –

2. Convert all values of dictionary into lower case –
my_dict = {'KEY1': "Hello", 'Key2': "World"}
new_dict = dict((k, v.lower()) for k, v in my_dict .items())
print(new_dict)
Output –
{‘KEY1’: ‘hello’, ‘Key2’: ‘world’}
3.How to change keys and values of dictionary into upper case ?
In the same way , If you need to change the case of a dictionary to upper case , Use upper() function in the place of lower . For example –
my_dict = {'KEY1': "Hello", 'Key2': "World"}
new_dict = dict((k.upper(), v.upper()) for k, v in my_dict .items())
print(new_dict)
Output –
{‘KEY1’: ‘HELLO’, ‘KEY2’: ‘WORLD’}
Python Dictionary is inbuilt data structures with Python. We widely use this data structure into so many practical scenarios.
Conclusion –
Dictionary is one of the most rapidly used data structure in python . In General , We need to compare keys and values of dictionaries with some variable. This creates a huge need of the above operations . The upper() and lower() function convert the string into different cases on the basis of their name . Both functions are system define in Python Language . In case you need to know more about string operations in Python , Go for the official documentation . These small tricks in Python speed up our coding and implementation time. I strongly recommend to keep a notes for such tricks .
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Thanks
Data Science Learner Team
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