Python pickle：Can not pickle <class'interpnd.LinearNDInterpolator'>：找不到它作爲interpnd.LinearNDInterpolator

我有一個Python中的Pickle模塊的問題。我想插入一些4參數數據，所以我想構建和存儲插補器，以便它可以在另一個代碼中重用，而不必在執行時重新生成。實際上，每次執行代碼時都會重新創建它。所有我能得到的是這樣的信息：Python pickle：Can not pickle <class'interpnd.LinearNDInterpolator'>：找不到它作爲interpnd.LinearNDInterpolator

"PicklingError: Can't pickle : it's not found as interpnd.LinearNDInterpolator"

我吹我的頭，試圖找出如何解決它，這是我的代碼（Python的V2.7）的簡化versione，和回溯如下提前感謝您的建議

a1,a2,a3,a4 = np.mgrid[paramvariation] 
pts = np.array([a1.ravel(),a2.ravel(),a3.ravel(),a4.ravel()]).T 
sr=paramvalues.ravel() 
LinearNDInterp = interp.interpnd.LinearNDInterpolator(pts,sr,fill) 

fileid=open("try.out",'w') 
pickle.dump(LinearNDInterp,fileid) 
fileid.close() 

Traceback (most recent call last): 
File "<ipython console>", line 1, in <module> 
File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\startup.py", line 128, in runfile 
execfile(filename, glbs) 
File "tryout.py", line 516, in <module> 
main("") 
File "tryout.py", line 354, in main 
pickle.dump(LinearNDInterp,fileid) 
File "C:\Python27\lib\pickle.py", line 1370, in dump 
Pickler(file, protocol).dump(obj) 
File "C:\Python27\lib\pickle.py", line 224, in dump 
self.save(obj) 
File "C:\Python27\lib\pickle.py", line 331, in save 
self.save_reduce(obj=obj, *rv) 
File "C:\Python27\lib\pickle.py", line 401, in save_reduce 
save(args) 
File "C:\Python27\lib\pickle.py", line 286, in save 
f(self, obj) # Call unbound method with explicit self 
File "C:\Python27\lib\pickle.py", line 562, in save_tuple 
save(element) 
File "C:\Python27\lib\pickle.py", line 286, in save 
f(self, obj) # Call unbound method with explicit self 
File "C:\Python27\lib\pickle.py", line 748, in save_global 
(obj, module, name)) 
PicklingError: Can't pickle <class 'interpnd.LinearNDInterpolator'>: it's not found as interpnd.LinearNDInterpolator

來源

2012-03-23 rogotad