“virtualenv”中的库比系统库大得多

我通过pew使用virtualenv(我认为这是一个很棒的工具),但我注意到了一些奇怪的东西。

我安装了scipy系统端:

    7,7 MiB [##########] /sparse
    5,1 MiB [######    ] /special
    5,1 MiB [######    ] /stats
    5,0 MiB [######    ] /linalg
    3,5 MiB [####      ] /spatial
    3,0 MiB [###       ] /optimize
    2,5 MiB [###       ] /signal
    2,3 MiB [###       ] /interpolate
    2,3 MiB [##        ] /misc
    2,2 MiB [##        ] /io
    1,5 MiB [##        ] /integrate
    1,3 MiB [#         ] /ndimage
    1,0 MiB [#         ] /fftpack
  744,0 KiB [          ] /cluster
  512,0 KiB [          ] /odr
  464,0 KiB [          ] /constants
  252,0 KiB [          ] /_lib
   44,0 KiB [          ] /_build_utils
   36,0 KiB [          ] /__pycache__
   24,0 KiB [          ]  HACKING.rst.txt
   12,0 KiB [          ]  THANKS.txt
    8,0 KiB [          ]  INSTALL.rst.txt
    4,0 KiB [          ]  __init__.py
    4,0 KiB [          ]  __config__.py
    4,0 KiB [          ]  LICENSE.txt
    4,0 KiB [          ]  setup.py
    4,0 KiB [          ]  BENTO_BUILD.txt
    4,0 KiB [          ]  version.py
    4,0 KiB [          ]  linalg.pxd

这是scipy virtualenv侧面安装的(同一scipy版本):

51,0 MiB [##########] /sparse
   37,6 MiB [#######   ] /.libs
   12,9 MiB [##        ] /linalg
   10,6 MiB [##        ] /spatial
    9,7 MiB [#         ] /special
    6,0 MiB [#         ] /interpolate
    5,9 MiB [#         ] /stats
    5,1 MiB [#         ] /optimize
    4,2 MiB [          ] /signal
    3,2 MiB [          ] /io
    3,0 MiB [          ] /integrate
    3,0 MiB [          ] /ndimage
    2,3 MiB [          ] /misc
    2,1 MiB [          ] /cluster
    1,7 MiB [          ] /fftpack
  884,0 KiB [          ] /odr
  328,0 KiB [          ] /constants
  204,0 KiB [          ] /_lib
   32,0 KiB [          ] /_build_utils
   24,0 KiB [          ]  HACKING.rst.txt
   20,0 KiB [          ] /__pycache__
   12,0 KiB [          ]  THANKS.txt
    8,0 KiB [          ]  INSTALL.rst.txt
    4,0 KiB [          ]  __init__.py
    4,0 KiB [          ]  LICENSE.txt
    4,0 KiB [          ]  setup.py
    4,0 KiB [          ]  __config__.py
    4,0 KiB [          ]  BENTO_BUILD.txt
    4,0 KiB [          ]  version.py
    4,0 KiB [          ]  pip-delete-this-directory.txt
    4,0 KiB [          ]  linalg.pxd

不用说,这里有巨大的尺寸差异。这通常不会给我带来太多麻烦,但我正在尝试将一个可执行文件与pyinstaller捆绑在一起,结果得到的可执行文件实在太大了。

有人能解释这种差异吗?它不是scipy特有的,我也认为它是numpy的,也许是其他库的。

编辑:

这个 文件夹 目录中的大小不同:

系统范围:

3,1 MiB [##########]  _sparsetools.cpython-35m-x86_64-linux-gnu.so

38,5 MiB [##########]  _sparsetools.cpython-35m-x86_64-linux-gnu.so