Python program to extract Keywords from a list

Given List of strings, extract all the words that are keywords.

Input : test_list = [“Gfg is True”, “Its a global win”, “try Gfg”], 
Output : [‘is’, ‘True’, ‘global’, ‘try’] 
Explanation : All strings in result list is valid Python keyword.

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Input : test_list = [“try Gfg”], 
Output : [‘try’] 
Explanation : try is used in try/except block, hence a keyword. 

Method #1 : Using iskeyword() + split() + loop

This is one of the ways in which this task can be performed. In this, we check for keyword using iskeyword() and convert a string to words using split(). The logic of extension to all strings happens using loop.

Output:

The original list is : [‘Gfg is True’, ‘Gfg will yield a return’, ‘Its a global win’, ‘try Gfg’]
Extracted Keywords : [‘is’, ‘True’, ‘yield’, ‘return’, ‘global’, ‘try’]

Method #2: Using list comprehension

This is yet another way in which this task can be performed. Similar to the above method but much compact on paper, use similar functionalities as the above method.

Output:

The original list is : [‘Gfg is True’, ‘Gfg will yield a return’, ‘Its a global win’, ‘try Gfg’]
Extracted Keywords : [‘is’, ‘True’, ‘yield’, ‘return’, ‘global’, ‘try’]