Python | Substring Key match in dictionary
If you're looking to find all keys in a dictionary that contain a specific substring, you can use a dictionary comprehension along with the in keyword.
Here's a step-by-step guide on how to do this:
1. Sample Dictionary
data = { 'apple': 1, 'orangeapple': 2, 'banana': 3, 'grape': 4, 'applefruit': 5 } 2. Find Keys with Substring
To find all keys that contain the substring 'apple':
substring = 'apple' matched_keys = [key for key, value in data.items() if substring in key] print(matched_keys)
Output:
['apple', 'orangeapple', 'applefruit']
3. If You Want the Matched Key-Value Pairs
Instead of just the keys, if you want the corresponding key-value pairs for matched keys:
matched_items = {key: value for key, value in data.items() if substring in key} print(matched_items) Output:
{'apple': 1, 'orangeapple': 2, 'applefruit': 5} The dictionary comprehension iterates over all key-value pairs in the dictionary and checks if the key contains the specified substring. If it does, it includes the key (or key-value pair) in the resulting list (or dictionary).
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