title: How to set the crypto key for Python's MD5 module?
body: <p>What is the Python equivalent of following Perl code?</p>
  
  <pre><code>hmac_md5_hex($login . "^" . $seq . "^" . $time . "^" . $amo . "^", $CryptoKey);
  </code></pre>
  
  <p>The Python hashlib.md5 doesn't seem to take an "cryptographic key" argument. It only accepts 1 argument.</p>