5 つの numpy 配列がa,b,c,d
あり、e
すべて次のように定義されています。
array([1, 2, 3, 4, 5, 6, 7, 8, 9])
これらの配列を次のように保存しています:
np.savez_compressed('tmp/test',a=a,b=b,c=c,d=d,e=e)
これにより、ファイルtest.npz
が作成されます。
ただし、データをロードしようとすると問題が発生します (こちらの例に従います):
>>> f=np.load('tmp/test.npz')
>>> f.files
['a', 'c', 'b', 'e', 'd']
>>> f['a']
次で終わる大量のエラー文字列が表示されます。
File "C:\Python27\lib\compiler\transformer.py", line 754, in atom_lbrace
return self.com_dictorsetmaker(nodelist[1])
File "C:\Python27\lib\compiler\transformer.py", line 1214, in com_dictorsetmaker
assert nodelist[0] == symbol.dictorsetmaker
AssertionError
pickle
代わりに使用することを検討しました。ただし、これによりファイルサイズが .npz ファイルの 4 倍になるため、savez
またはsavez_compressed
.
私が間違っていること、または代替アプローチの提案を誰かが知っていますか?
エラーを生成するスクリプトは次のとおりです。
def saver():
import numpy as np
a= np.arange(1,10)
b=a
c=a
d=a
e=a
np.savez_compressed('tmp/test',a=a,b=b,c=c,d=d,e=e)
f=np.load('tmp/test.npz')
print f.files
print f['a']
完全なトレースバックは次のとおりです。
Traceback (most recent call last):
File "<pyshell#16>", line 1, in <module>
saver.saver()
File "C:\Python27\saver.py", line 14, in saver
print f['a']
File "C:\Python27\lib\site-packages\numpy\lib\npyio.py", line 241, in __getitem__
return format.read_array(value)
File "C:\Python27\lib\site-packages\numpy\lib\format.py", line 440, in read_array
shape, fortran_order, dtype = read_array_header_1_0(fp)
File "C:\Python27\lib\site-packages\numpy\lib\format.py", line 336, in read_array_header_1_0
d = safe_eval(header)
File "C:\Python27\lib\site-packages\numpy\lib\utils.py", line 1156, in safe_eval
ast = compiler.parse(source, mode="eval")
File "C:\Python27\lib\compiler\transformer.py", line 53, in parse
return Transformer().parseexpr(buf)
File "C:\Python27\lib\compiler\transformer.py", line 132, in parseexpr
return self.transform(parser.expr(text))
File "C:\Python27\lib\compiler\transformer.py", line 124, in transform
return self.compile_node(tree)
File "C:\Python27\lib\compiler\transformer.py", line 159, in compile_node
return self.eval_input(node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 194, in eval_input
return Expression(self.com_node(nodelist[0]))
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 578, in testlist
return self.com_binary(Tuple, nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 1082, in com_binary
return self.lookup_node(n)(n[1:])
File "C:\Python27\lib\compiler\transformer.py", line 596, in test
then = self.com_node(nodelist[0])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 610, in or_test
return self.com_binary(Or, nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 1082, in com_binary
return self.lookup_node(n)(n[1:])
File "C:\Python27\lib\compiler\transformer.py", line 615, in and_test
return self.com_binary(And, nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 1082, in com_binary
return self.lookup_node(n)(n[1:])
File "C:\Python27\lib\compiler\transformer.py", line 619, in not_test
result = self.com_node(nodelist[-1])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 626, in comparison
node = self.com_node(nodelist[0])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 659, in expr
return self.com_binary(Bitor, nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 1082, in com_binary
return self.lookup_node(n)(n[1:])
File "C:\Python27\lib\compiler\transformer.py", line 663, in xor_expr
return self.com_binary(Bitxor, nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 1082, in com_binary
return self.lookup_node(n)(n[1:])
File "C:\Python27\lib\compiler\transformer.py", line 667, in and_expr
return self.com_binary(Bitand, nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 1082, in com_binary
return self.lookup_node(n)(n[1:])
File "C:\Python27\lib\compiler\transformer.py", line 671, in shift_expr
node = self.com_node(nodelist[0])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 683, in arith_expr
node = self.com_node(nodelist[0])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 695, in term
node = self.com_node(nodelist[0])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 715, in factor
node = self.lookup_node(nodelist[-1])(nodelist[-1][1:])
File "C:\Python27\lib\compiler\transformer.py", line 727, in power
node = self.com_node(nodelist[0])
File "C:\Python27\lib\compiler\transformer.py", line 805, in com_node
return self._dispatch[node[0]](node[1:])
File "C:\Python27\lib\compiler\transformer.py", line 739, in atom
return self._atom_dispatch[nodelist[0][0]](nodelist)
File "C:\Python27\lib\compiler\transformer.py", line 754, in atom_lbrace
return self.com_dictorsetmaker(nodelist[1])
File "C:\Python27\lib\compiler\transformer.py", line 1214, in com_dictorsetmaker
assert nodelist[0] == symbol.dictorsetmaker
AssertionError