title: python regular expression to ignore a few characters
body: <p>In python3, I need to extract a 10-digit number from a sequence in the format of <code>555=AB:C$: EF 1234567890</code>, how should I do that? The string between <code>=</code> and 10-digit string can be pretty much any character,while the length of those characters is always 10... I tried to use <code>re.compile()</code>, but wasn't able to set the appropriate patterns yet. Any suggestion is welcome!</p>
  
  <p>EDIT #1: the string has in total 20 characters, with the last 10 digits, and the first 10 can be anything (space, alphabet, $ or other symbols, and digits). Hence, I wasn't able to identify a good pattern yet.</p>
  
  <p>EDIT #2: The problem is that I can't really identify which character it is at the end of the string (the string is a portion of a big file). The character after this string is something that doesn't seem to have uniform display in windows/linux/unix. Hence, I'm trying to locate it from the beginning, not from the end. Thanks!</p>