问题
I'm trying to use RubyPython on Debian 8 and have been unable to. RubyPython.start always raises an InvalidInterpreter exception. I've tried specifying the python interpreter executable but it doesn't matter. The snipped below shows my versions and attempting to start it from pry
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'
回答1:
I run strace -ff -o /tmp/pry.txt pry to see what happens when require rubypython and RubyPython.start are entered. There was lines like
stat("/usr/lib/libpython2.7.so", 0x7ffd2bf4cde0) = -1 ENOENT (No such file or directory)
meaning that rubypython code was trying to locate python library. What was absent was a successful stat for /usr/lib/x86_64-linux-gnu/libpython2.7.so file.
I modified file ~/.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)
where the last line is what I inserted. After this RubyPython.start returned true.
回答2:
Updating RubyPython to 0.6.4 versions has resolved this issue for me.
来源：https://stackoverflow.com/questions/38400748/ruby-2-1-5-and-rubypython-0-6-3-rubypythoninvalidinterpreter-an-invalid-inte