import re
text = '146.204.224.152 - feest6811 [21/Jun/2019:15:45:24 -0700] "POST /incentivize HTTP/1.1" 302 4622\n197.109.77.178 - kertzmann3129 [21/Jun/2019:15:45:25 -0700] "DELETE /virtual/solutions/target/web+services HTTP/2.0" 203 26554\n156.127.178.177 - [21/Jun/2019:15:45:27 -0700] "DELETE /interactive/transparent/niches/revolutionize HTTP/1.1'
print (re.findall(r"(?<=-\s)[a-zA-Z0-9]+|-(?= \[)", text))
print(re.findall(r"(?:POST|DELETE) \S+ HTTP/(?:1\.[01]|2.0)", text))
print(re.findall(r"\"([A-Z]+\s/[a-zA-Z][^\"]+)(?:\"|$)", text))
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
['feest6811', 'kertzmann3129', '-']
['POST /incentivize HTTP/1.1', 'DELETE /virtual/solutions/target/web+services HTTP/2.0', 'DELETE /interactive/transparent/niches/revolutionize HTTP/1.1']
['POST /incentivize HTTP/1.1', 'DELETE /virtual/solutions/target/web+services HTTP/2.0', 'DELETE /interactive/transparent/niches/revolutionize HTTP/1.1']