Regular Expressions 101

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"
^(\S+) (\S+) (\S+) \[([\w:/]+\s[+\-]\d{4})\] "(\S+) (\S+)\s*(\S*)" (\d{3}) (\S+)
"
All the errors detected are listed below, from left to right, as they appear in the pattern.
" An unescaped delimiter must be escaped with a backslash (\)
" An unescaped delimiter must be escaped with a backslash (\)
Your regular expression does not match the subject string.

Regular Expression
No Match

r"
"

Test String