修改python模块引用方式

oanp.py

@@ -3,6 +3,8 @@ import warnings
 warnings.filterwarnings('ignore')
 import argparse, json
 from common import NoIndent, MyEncoder
+import os, sys
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__))+'/pyat')
 
 def _argparse():
     parser = argparse.ArgumentParser(description='Average Noise Spectral Level')
@@ -29,7 +31,7 @@ def main():
         png = paramData["png"]
         outParam = paramData["outParam"]
     
-        from pyat.OANPd import call_oanp
+        from OANPd import call_oanp
         from matplotlib import pyplot as plt
         import numpy as np