title: Regex match of a string with numbers and uppercase letters failing
body: <p>I am trying to match <code>lasko17A565</code> in the list below but the regex fails?specifically I am trying to look for the string present in variable <code>train</code> in the front followed by any combination of numbers and uppercase letters, can anyone provide guidance why it fails?</p>
  
  <pre><code>import re
  xbsfindupdates_output_list  = ['project-707.1.5 was found in the following updates of lasko:', '\tlasko17A565', '\tNewestlasko', '\tBuiltlasko']
  train = 'lasko'
  found_new_SDK = False
  for SDK in xbsfindupdates_output_list:
      if re.match(r'%s[0-9A-Z]'%train,SDK):
          found_new_SDK = True
  print found_new_SDK
  </code></pre>
  
  <p>CURRENT OUTPUT:-</p>
  
  <pre><code>False
  </code></pre>
  
  <p>EXPECTED OUTPUT:-</p>
  
  <pre><code>True
  </code></pre>