title: ImportError: cannot import name 'strftime'
body: <p>I am getting an error and not sure why, my code is as follows:</p>
  
  <pre><code>year1 = int(input('choose a year :',))
  month1 = int(input('choose a month :',))
  day1 = int(input('choose a day :',))
  year2 = int(input('choose a year :',))
  month2 = int(input('choose a month :',))
  day2 = int(input('choose a day :',))
  from datetime import date, timedelta as td
  from datetime import strftime as st
  d1 = date(year1, month1, day1)
  d2 = date(year2, month2, day2)
  delta = d2 - d1
  for i in range(delta.days + 1):
  day = st((d1 + td(days=i)))
  print(get_exrates(day))    
  </code></pre>
  
  <p>the full error code i get is:</p>
  
  <pre><code>Traceback (most recent call last):
      line 17, in &lt;module&gt;
      from datetime import strftime as st
  ImportError: cannot import name 'strftime'
  </code></pre>