Follow PEP 8 - Code lay-out - Imports

Inst_eddies/Analysis/stat_SHPC.py

 #!/usr/bin/env python3
 
 import argparse
+from os import path
+
 import shapefile
 import numpy as np
-from os import path
 
 parser = argparse.ArgumentParser()
 parser.add_argument("SHPC")