Question

我正在尝试使用ScriptEngine在Java中编写Python脚本。但是当我导入tflearn模块时，它会给我以下错误。

javax.script.ScriptException: ImportError: 
Importing the multiarray numpy extension module failed.  Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control).  Otherwise reinstall numpy.

Original error was: cannot import name multiarray
 in <script> at line number 1
    at org.python.jsr223.PyScriptEngine.scriptException(PyScriptEngine.java:222)
    at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:59)
    at org.python.jsr223.PyScriptEngine.eval(PyScriptEngine.java:31)
    at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:264)
    at com.ultimatix.bot.JavaRunCommand.main(JavaRunCommand.java:48)
Caused by: Traceback (most recent call last):
  File "<script>", line 1, in <module>
  File "D:\Python\Lib\site-packages\tflearn\__init__.py", line 4, in <module>
    from . import config
  File "D:\Python\Lib\site-packages\tflearn\config.py", line 3, in <module>
    import tensorflow as tf
  File "D:\Python\Lib\site-packages\tensorflow\__init__.py", line 24, in <module>
    from tensorflow.python import *
  File "D:\Python\Lib\site-packages\tensorflow\python\__init__.py", line 47, in <module>
    import numpy as np
  File "D:\Python\Lib\site-packages\numpy\__init__.py", line 142, in <module>
    from . import add_newdocs
  File "D:\Python\Lib\site-packages\numpy\add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "D:\Python\Lib\site-packages\numpy\lib\__init__.py", line 8, in <module>
    from .type_check import *
  File "D:\Python\Lib\site-packages\numpy\lib\type_check.py", line 11, in <module>
    import numpy.core.numeric as _nx
  File "D:\Python\Lib\site-packages\numpy\core\__init__.py", line 26, in <module>
    raise ImportError(msg)

我还尝试导入一些不同的包，如sys，pickle。它们正在成功导入。

Python版本：3.5.4 操作系统：窗口7 - 64位

Answer 1

Numpy是用Fortran编写的，编译成二进制文件。因此，在JVM上运行是不兼容的。您导入的其他包是用纯python实现的。

标准的python实现CPython已经做了很多工作以保持二进制级别的兼容性。 Numpy数组与C数组具有相同的内存布局，这些数组与Java数组的内存布局不同。随着你对python的深入研究，关于为什么它不能工作会有更多的不兼容性。

ImportError：导入多阵列numpy扩展模块失败

1 个答案: