Why does IN not evaluate my regular expression?

Question

Using Python 3.x, I am parsing through log files, and on most lines there are one of three key words (INFO, ERROR, or WARN).

I am defining the regular expression to see if a line contains either of these words as:

INFO|ERROR|WARN

I was certain that this was the correct way to go about this, but it does not seem to be working. Does anybody know what I am missing here?

I am checking to see if the regular expression is in the line simply by printing it:

Properties.py
    status = "INFO|ERROR|WARN"

Runner.py
    import properties as p
    import re
    line = "[time stamp] INFO [other information]"
    print(p.status in line)
    line = "[time stamp] ERROR [other information]"
    print(p.status in line)

Output:

False
False

It prints nothing but false.

Answer 1

您需要实际调用一个或多个功能re （未使用in ）使用正则表达式引擎：

print(bool(re.search(p.status, line)))