Some refactoring

spintrum/spintrum.py

@@ -6,17 +6,16 @@ import numpy as np
 import os
 import mpmath
 
+
 def _print_error(msg_str):
     sys.stderr.write(msg_str + "\n")
     sys.stderr.flush()
 
-
 try:
     _OpenBLASLibPath = os.path.join(os.path.dirname(os.path.abspath(__file__)),"OpenBLAS_install/lib/libopenblas.so.0")
     c.CDLL(_OpenBLASLibPath)
 except OSError:
     _print_error("Warning: Failed to load OpenBLAS in its default place. Excepting the library to be available from the system.")
-
 _SpintrumLibPath = os.path.join(os.path.dirname(os.path.abspath(__file__)), "lib/libspintrum.so")
 if not os.path.exists(_SpintrumLibPath):
     msg = "WARNING: Could not load the spintrum shared library in path " \