Comparing Time - Python : <p>I have a function where I read the time from a file. I put this into a variable. I then subtract this value from the current time which most of the time will give me a value around . </p>

<p>My problem is im not sure how to check if this value which I attach to a variable is greater than say 20 seconds. </p>

<pre><code>def numberchecker():
    with open('timelog.txt', 'r') as myfile:
        data=myfile.read().replace('\n','')

    a = datetime.strptime(data,'%Y-%m-%d %H:%M:%S.%f')
    b = datetime.now()
    c = b-a   (This outputs for example: 0:00:16.657538)

    d = (would like this to a number I set for example 25 seconds)


    if c &gt; d:
        print ("blah blah")
</code></pre>
