what i am trying to find is the correct regular expression
import re
line = "The Boeing AH-64 Apache is an American four-blade,"
print(re.findall('(A.+)\s', line))
this is want i want
['AH-64', 'Apache' , 'American']
and this is what i'm getting
['AH-64 Apache is an American']
You may use a word boundary (\b) before A and then match one or more non-whitespace chars after it (\S+):
import re
line = "The Boeing AH-64 Apache is an American four-blade,"
print(re.findall(r'\bA\S+', line))
NOTE: to match A as a whole word, replace + (1 or more occurrences) with * (0 or more occurrences): r'\bA\S*'. I assume you want to match longer sequences though.
Or, since \S matches all symbols and punctuation, you may precise your regex a bit and use
print(re.findall(r'\bA[\w-]+', line))
where [\w-]+ matches 1 or more letter, digits, _ and - symbols.
See the Python demo showing ['AH-64', 'Apache', 'American'] output.
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