蒔蘿：當加載存儲的對象，得到'dispatch [key]（self）KeyError：'\ x7f'`

Question

我一直在使用dill自從this question of mine得到包維護者的非常好的回答。

然而，最近在我的使用情況下，我收到以下錯誤：

stored_env = dill.load(f_in) 
    File "A:\anaconda\lib\site-packages\dill\dill.py", line 250, in load 
    obj = pik.load() 
    File "A:\anaconda\lib\pickle.py", line 864, in load 
    dispatch[key](self) 
KeyError: '\x7f' 

什麼可能這是什麼意思？

我使用dill版本：'0.2.5'，通過pip install dill

我試着設置dill.detect.trace(True)作爲檢索，但我沒有得到任何來自輸出。

編輯：這裏有一個小例子，不工作：

#test.py 
import numba as nb 
import numpy as np 

@nb.jit(nopython=True) 
def my_fast_vector_add(x, y): 
    num_elements = x.shape[0] 
    z = np.zeros(num_elements, dtype=np.float64) 

    for i in range(num_elements): 
     z[i] = x[i] + y[i] 

    return z 

class Environment(): 
    def __init__(self): 
     self.x = np.random.rand(10) 
     self.y = np.random.rand(10) 

    def my_vector_add(self): 
     return my_fast_vector_add(self.x, self.y) 

而且將所有這些共同的代碼：

#doit.py 
import test 
import dill 
import os 
import shutil 
import gzip 

env = test.Environment() 
print "init add result: ", env.my_vector_add() 
pkl_path = "test.pkl" 

with open(pkl_path, 'w') as f: 
    dill.dump(env, f) 

compressed_path = "test.zip" 

with open(pkl_path, 'r') as f_in, gzip.open(compressed_path, 'wb') as f_out: 
    shutil.copyfileobj(f_in, f_out) 

os.remove(pkl_path) 

stored_env = None 
with gzip.open(compressed_path, 'r') as f_in: 
    stored_env = dill.load(f_in) 
    print "loaded add result: ", stored_env.my_vector_add() 

所產生的錯誤是：

exec(compile(scripttext, filename, 'exec'), glob, loc) 
    File "A:/dill_issue/doit.py", line 25, in <module> 
    stored_env = dill.load(f_in) 
    File "A:\anaconda\lib\site-packages\dill\dill.py", line 250, in load 
    obj = pik.load() 
    File "A:\anaconda\lib\pickle.py", line 864, in load 
    dispatch[key](self) 
    File "A:\anaconda\lib\pickle.py", line 886, in load_eof 
    raise EOFError 
EOFError 

Answer 1

顯然，答案是從升級至dill-0.2.6.dev0。