我正在处理大型矩阵，因此我使用 NumPy memmap。但是，我收到错误，因为显然 memmap 使用的文件描述符没有关闭。
import numpy
import tempfile
counter = 0
while True:
temp_fd, temporary_filename = tempfile.mkstemp(suffix='.memmap')
map = numpy.memmap(temporary_filename, dtype=float, mode="w+", shape=1000)
counter += 1
print counter
map.close()
os.remove(temporary_filename)
据我了解，当调用 close() 方法时，memmap 文件将被关闭。然而，上面的代码不能永远循环，因为它最终会抛出“[Errno 24] 打开的文件太多" error:
1016
1017
1018
1019
Traceback (most recent call last):
File "./memmap_loop.py", line 11, in <module>
File "/usr/lib/python2.5/site-packages/numpy/core/memmap.py", line 226, in __new__
EnvironmentError: [Errno 24] Too many open files
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python2.5/site-packages/apport_python_hook.py", line 38, in apport_excepthook
ImportError: No module named packaging_impl
Original exception was:
Traceback (most recent call last):
File "./memmap_loop.py", line 11, in <module>
File "/usr/lib/python2.5/site-packages/numpy/core/memmap.py", line 226, in __new__
EnvironmentError: [Errno 24] Too many open files
有人知道我在忽略什么吗？
