从pyxdameraulevenshtein导入会出现以下错误
pyxdameraulevenshtein==1.5.3
pandas==1.1.4
scikit-learn==0.20.2.
Numpy是1.16.1。
在Python 3.6中工作良好,在Python 3.7中问题。
有人在使用Python 3.7(3.7.9)时遇到过类似的问题吗?
from pyxdameraulevenshtein import normalized_damerau_levenshtein_distance as norm_dl_dist
__init__.pxd:242: in init pyxdameraulevenshtein
???
E ValueError: numpy.ndarray size changed, may indicate binary incompatibility. Expected 88 from C header, got 80 from PyObject
我在python3.10.4,numpy1.21.5中遇到了同样的问题,我只有在通过pip卸载numpy和pip安装numpy将numpy更新到1.22.3后才解决了这个问题。只有pip install -upgrade numpy没有工作。
PS D:\quant\vnpy-master\examples\veighna_trader> python .\run.py
Traceback (most recent call last): File
"D:\quant\vnpy-master\examples\veighna_trader\run.py", line 31, in
from vnpy_optionmaster import OptionMasterApp File
"D:\it_soft\python3.10.4\Lib\site-packages\vnpy_optionmaster__init__.py",
line 26, in from .engine import OptionEngine, APP_NAME File
"D:\it_soft\python3.10.4\Lib\site-packages\vnpy_optionmaster\engine.py",
line 34, in from .pricing import binomial_tree_cython as
binomial_tree File "binomial_tree_cython.pyx", line 1, in init
binomial_tree_cython ValueError: numpy.ndarray size changed, may
indicate binary incompatibility. Expected 96 from C header, got 88
from PyObject
对于几乎相同的图像:python:3.7-slim-buster
我今天才开始有这个问题,以前是不存在的。
我通过从require .txt文件中删除numpy来解决这个问题,并在我的Dockerfile中执行以下操作:
RUN pip3 install --upgrade --no-binary numpy==1.18.1 numpy==1.18.1 \
&& pip3 install -r requirements.txt
我使用了一些旧版本的keras和它的库,升级到numpy 1.20.0对这些库不起作用。但我认为解决方案包含在我给你的第一个命令中,它告诉pip不要编译numpy,而是下载一个预编译的版本。
命令中的技巧是,您可能会发现有人告诉您使用pip的——no-binary选项来解决问题,但他们没有指定如何解决问题,这可能很棘手(就像我遇到的那样);您必须在命令中编写两次包才能使其工作,否则PIP将向您抛出一个错误。
我认为第一个命令中的——upgrade选项是不必要的。
不升级numpy的解决方案
虽然升级numpy版本通常可以解决这个问题,但并不总是可行的。一个很好的例子是,当你使用tensorflow==2.6.0时,它与最新的numpy版本不兼容(它需要~=1.19.2)。
正如在FZeiser的回答中已经提到的,在1.20.0版本中numpys C API发生了变化。有一些包在构建时依赖于这个C API,例如pyxdameraulevenshtein。鉴于pips依赖解析器不保证安装包的任何顺序,可能会发生以下情况:
pip figures out that it needs to install numpy and it chooses the latest version, 1.21.2 as of the time writing this answer.
It then builds a package that depends on numpy and its C API, e.g. pyxdameraulevenshtein. This package is now compatible with numpy 1.21.2 C API.
At a later point pip needs to install a package that has a requirement for an older version of numpy, e.g. tensorflow==2.6.0 which would try to install numpy==1.19.5. As a result, numpy==1.21.2 is uninstalled and the older version is installed.
When running code that uses pyxdameraulevenshtein, its current installation relies on the updated numpy C API, yet the numpy version was downgraded which would result in the error.
解决方案
您应该使用过时的numpy C API重新构建包,以确保它与当前安装的numpy版本兼容。例如,对于pyxdameraulevenshtein:
pip uninstall pyxdameraulevenshtein
pip install pyxdameraulevenshtein --no-binary pyxdameraulevenshtein