convert bash scripts to python scripts

scripts/start-hyperopt-worker.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+import multiprocessing
+import os
+import subprocess
+
+PROC_COUNT = multiprocessing.cpu_count() - 1
+DB_NAME = 'freqtrade_hyperopt'
+WORK_DIR = os.path.join(
+    os.path.sep,
+    os.path.abspath(os.path.dirname(__file__)),
+    '..', '.hyperopt', 'worker'
+)
+if not os.path.exists(WORK_DIR):
+    os.makedirs(WORK_DIR)
+
+# Spawn workers
+command = [
+    'hyperopt-mongo-worker',
+    '--mongo=127.0.0.1:1234/{}'.format(DB_NAME),
+    '--poll-interval=0.1',
+    '--workdir={}'.format(WORK_DIR),
+]
+processes = [subprocess.Popen(command) for i in range(PROC_COUNT)]
+
+# Join all workers
+for proc in processes:
+    proc.wait()