python - Ruby 2.1.5 和 RubyPython 0.6.3- RubyPython::InvalidInterpreter:指定了无效的解释器

Question

我尝试在 Debian 8 上使用 RubyPython 但无法。 RubyPython.start 始终引发 InvalidInterpreter 异常。我尝试指定 python 解释器可执行文件，但这并不重要。下面的片段显示了我的版本并尝试从 pry 启动它

rubypython (0.6.3)
adrew@bunny:~$ ruby --version
ruby 2.1.5p273 (2014-11-13) [x86_64-linux-gnu]
adrew@bunny:~$ python --version
Python 2.7.9
adrew@bunny:~$ which python2.7
/usr/bin/python2.7
adrew@bunny:~$ pry
[1] pry(main)> require 'rubypython'
=> true
[2] pry(main)> RubyPython.start
RubyPython::InvalidInterpreter: An invalid interpreter was specified.
from /var/lib/gems/2.1.0/gems/rubypython-0.6.3/lib/rubypython.rb:67:in `block in start'
[3] pry(main)> RubyPython.start(:python_exe => "/usr/bin/python2.7")
RubyPython::InvalidInterpreter: An invalid interpreter was specified.
from /var/lib/gems/2.1.0/gems/rubypython-0.6.3/lib/rubypython.rb:67:in `block in start'

Answer 1

我运行 strace -ff -o/tmp/pry.txt pry 来看看当 require ruby​​python 和 RubyPython.start 是时会发生什么进入。有这样的行

stat("/usr/lib/libpython2.7.so", 0x7ffd2bf4cde0) = -1 ENOENT (No such file or directory)

意味着 ruby​​python 代码正在尝试查找 python 库。缺少的是/usr/lib/x86_64-linux-gnu/libpython2.7.so 文件的成功 stat。

我修改了文件 ~/.gem/ruby/2.1.0/gems/rubypython-0.6.3/lib/rubypython/interpreter.rb

if ::FFI::Platform::ARCH != 'i386'
   @locations << File.join("/opt/local/lib64", name)
   @locations << File.join("/opt/lib64", name)
   @locations << File.join("/usr/local/lib64", name)
   @locations << File.join("/usr/lib64", name)
   @locations << File.join("/usr/lib/x86_64-linux-gnu", name)

最后一行是我插入的内容。在 RubyPython.start 返回 true 后。