我尝试为pyRFC创建一个独立的轮子:http://sap.github.io/PyRFC/install.html

我有所需的(封闭源)库和头文件。

如果我将库和标头复制到$ VIRTUAL_ENV / lib和$ VIRTUAL_ENV / include,则可以安装pyRFC。

现在,我尝试创建一个包含封闭的源库文件的轮子。

但是我失败了。

如果我解压轮子,它仅包含以下内容:

(pypi)pypi@pypiserver:~> unzip -l packages/pyrfc-1.9.91-cp27-cp27mu-linux_x86_64.whl
Archive:  packages/pyrfc-1.9.91-cp27-cp27mu-linux_x86_64.whl
  Length      Date    Time    Name
---------  ---------- -----   ----
     5366  2018-07-23 13:38   pyrfc/_exception.py
     1045  2018-07-23 13:38   pyrfc/__init__.py
  1610216  2018-07-23 14:10   pyrfc/_pyrfc.so
     3835  2018-07-23 14:10   pyrfc-1.9.91.dist-info/DESCRIPTION.rst
      990  2018-07-23 14:10   pyrfc-1.9.91.dist-info/metadata.json
        6  2018-07-23 14:10   pyrfc-1.9.91.dist-info/top_level.txt
      105  2018-07-23 14:10   pyrfc-1.9.91.dist-info/WHEEL
     4666  2018-07-23 14:10   pyrfc-1.9.91.dist-info/METADATA
      715  2018-07-23 14:10   pyrfc-1.9.91.dist-info/RECORD
---------                     -------
  1626944                     9 files


缺少extra_objects(请参见下文)。

如何修改pyRFC的setup.py以使转盘包含$ VIRTUAL_ENV / lib中的库?

这是setup.py:https://github.com/SAP/PyRFC/blob/master/setup.py

我为setup.py尝试了此补丁

@@ -48,7 +49,9 @@ PYRFC_EXT = Extension(
     , libraries=LIBS
     , define_macros=MACROS
     , extra_compile_args=COMPILE_ARGS
-    , extra_link_args=LINK_ARGS
+    , extra_link_args=LINK_ARGS,
+      library_dirs=['lib'],
+      extra_objects = ['lib/libicudata.so.50', 'lib/libsapnwrfc.so', 'lib/libicui18n.so.50', 'lib/libicuuc.so.50', 'lib/libicudecnumber.so', 'lib/libsapucum.so'],
 )


如果我在没有libsapnwrfc.so的情况下安装和运行该库,则会出现此错误:

Traceback (most recent call last):
  File "test-pyrfc.py", line 1, in <module>
    from pyrfc import Connection
  File "/home/other/lib/python2.7/site-packages/pyrfc/__init__.py", line 22, in <module>
    from pyrfc._pyrfc import get_nwrfclib_version, Connection, TypeDescription, FunctionDescription, Server
ImportError: libsapnwrfc.so: cannot open shared object file: No such file or directory


如果跟踪打开的调用,我会看到它仅在库的根目录下查看。该库无法在virtualenv(/ home / other)中进行搜索:

strace python test-pyrfc.py 2>&1 | grep libsapnwrfc.so
open("/lib64/tls/x86_64/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/lib64/tls/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/lib64/x86_64/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/lib64/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/usr/lib64/tls/x86_64/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/usr/lib64/tls/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/usr/lib64/x86_64/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/usr/lib64/libsapnwrfc.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
write(2, "libsapnwrfc.so: cannot open shar"..., 73libsapnwrfc.so: cannot open shared object file: No such file or directory) = 73


我想通过滚轮将“ libsapnwrfc.so”安装到virtualenv中,因为这使我能够拥有多个独立的环境。我可以通过RPM或config-management安装它,但是我想避免它。

最佳答案

extra_objects仅在链接扩展程序lib时使用,并且未捆绑在滚轮中。 From the docs


  extra_objects:要链接的其他文件列表(例如,“源”未隐含的目标文件,必须明确指定的静态库,二进制资源文件等)


要将库捆绑到滚轮中,对于Linux滚轮,请使用auditwheel;对于MacOS滚轮,请使用delocate。 SO已经有了一个很好的问题:How to build and distribute a Python/Cython package that depends on third party libFoo.so涵盖了同时使用auditwheeldelocate的整个车轮维修过程。在这里,我将仅概述必要的命令。这两个工具的过程非常相似:

$ pip install auditwheel  # you may also need to install patchelf
$ python setup.py bdist_wheel
$ auditwheel show dist/*_linux_x86_64.whl  # will show the libs to be bundled
$ auditwheel repair dist/*_linux_x86_64.whl


这将创建一个新的目录dist/wheelhouse,其中包含带有捆绑库的新车轮。

08-19 21:29