title: python regex to parse the output of a command
body: <p>The below python script executes a command. The command returns an output. Output is listed below.</p>
  
  <p>I need to parse the following from the output.</p>
  
  <p>1) HTTP response code
  2) Contents of points array. Array could be empty, or non empty array (last line of the output)</p>
  
  <p>OUTPUT :</p>
  
  <pre><code>Matched line for host akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net
  {'access_token': 'akaa-r6gnip3mmql3evrj-mgiex4eajadrjltu', 'max-body': 131072, 'secret': 'yBc1LSGKBd6+sSP5tTR2o+YxlNYvlYNjWGdCFDl6Xt0=', 'signed-header': [], 'host': 'akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net', 'client_token': 'akaa-eyaa6fvcfngdlrb6-uxvn3hkpzxx33oxc'}
  []
  Canonicalized header:
  Auth data: EG1-HMAC-SHA256 client_token=akaa-eyaa6fvcfngdlrb6-uxvn3hkpzxx33oxc;access_token=akaa-r6gnip3mmql3evrj-mgiex4eajadrjltu;timestamp=20180410T16:38:24+0000;nonce=265e61d8-813c-4c3a-9edb-91caaa027420;
  String-to-sign: POST    https   akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net  /prolexic-analytics/v2/metrics      YSycIdG2e9nY8KVLrPvMfzrBNMZEI8ncRxtcUP4h1J0=    EG1-HMAC-SHA256 client_token=akaa-eyaa6fvcfngdlrb6-uxvn3hkpzxx33oxc;access_token=akaa-r6gnip3mmql3evrj-mgiex4eajadrjltu;timestamp=20180410T16:38:24+0000;nonce=265e61d8-813c-4c3a-9edb-91caaa027420;
  args = ['curl', '-H', 'Authorization: EG1-HMAC-SHA256 client_token=akaa-eyaa6fvcfngdlrb6-uxvn3hkpzxx33oxc;access_token=akaa-r6gnip3mmql3evrj-mgiex4eajadrjltu;timestamp=20180410T16:38:24+0000;nonce=265e61d8-813c-4c3a-9edb-91caaa027420;signature=p6y+oDzaTfh3nj32R8jveDx8EGmjpHGybL7LJ0L+Adk=', '-S', '-i', '-k', '-X', 'POST', '-H', 'Host:akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net', '-H', 'Content-Type: application/json', '-H', 'Accept: application/json', '-d', '{"contract": "amade", "start": 1522420500, "end": 1522424147, "samples": 20, "type": {"connect": ["bandwidthIn"]}}', 'https://akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net/prolexic-analytics/v2/metrics', '-H', 'Expect:']
  HTTP/1.1 200 OK
  Server: Apache-Coyote/1.1
  Content-Type: application/json
  Content-Length: 151
  X-Trace-Id: c4db5acce87c20f3
  Date: Tue, 10 Apr 2018 16:38:26 GMT
  Connection: keep-alive
  
  {"status":true,"currentContract":"amade","statusMsg":"Metrics acquired successfully","data":[{"service":"connect","metric":"bandwidthIn","points":[]}]} 
  </code></pre>
  
  <p>SCRIPT :</p>
  
  <pre><code>import subprocess
  import sys
  import re
  
  n = sys.argv[1]
  for i in range(int(n)):
   # command to be executed 
   cmd = "python egcurl --eg-config .egcurl -Sik -X POST --eg-verbose -H 'Host:akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net' -H 'Content-Type: application/json' -H 'Accept: application/json' -d '{'contract': 'amade', 'start': 1522420500, 'end': 1522424147, 'samples': 20, 'type': {'connect': ['bandwidthIn']}}'  https://akaa-wcb54zu2flskjhx4-szsapxzmalbot2fr.luna-dev.akamaiapis.net/prolexic-analytics/v2/metrics"
  
  
   cmd_exec = subprocess.call(cmd, shell=True)
   r1 = re.search("HTTP(.*)",cmd_exec)
   print(r1)
   print(cmd_exec)
  </code></pre>
  
  <p>error:   </p>
  
  <pre><code>File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/re.py", line 146, in search
      return _compile(pattern, flags).search(string)
  TypeError: expected string or buffer
  </code></pre>