-1

I want to use the pypy interpreter. Currently my application works well under python 2.5 and CPython, as I view the variable sys.path:

'/ apps / work', '/ apps / work / application' Twisted-12.0.0-py2.5-linux-x86_64.egg.

How can I add the path to the interpreter PyPy?

NlightNFotis
  • 9,559
  • 5
  • 43
  • 66

2 Answers2

0

Currently my application works well under python 2.5 and CPython

CPython is the name of the reference python implementation.

2.5 is a version of the language semantics. The language semantics have nothing to do with the implementation. 2.5 has to do with Python the language. It can be that another implementation (such as pypy, or jython) may be implementing the version 2.5 (or higher) of the Python language semantics.

How can I add the path to the interpreter PyPy

CPython works with an environment variable called PYTHONPATH in order to find the location of modules. Pypy works the same. You can view the contents of the PYTHONPATH environment variable by issuing (assuming you are using a UNIX like environment) echo $PYTHONPATH or printenv PYTHONPATH .

If you do not get the output you desire (or any output for that matter) from running the above, feel free to edit your .bashrc file and append to it the following line:

export PYTHONPATH="${PYTHONPATH}:/the/path/to/your/modules/"

replacing of course /the/path/to/your/modules with the actual path.

The above change will not take effect until you start a new shell or reload the config file by running this on the command line:

source ~/.bashrc

If you are working on a Windows environment, instructions for setting PYTHONPATH under Windows are here

[EDIT]: You can also see a guide for adding eggs under Pypy from a more authoritative source (Antonio Cuni is a Pypy developer) here

Community
  • 1
  • 1
NlightNFotis
  • 9,559
  • 5
  • 43
  • 66
  • thank you for the answer for '/ apps / work', '/ apps / work / application', I managed to harden and but twistd (Twisted-12.0.0-py2.5-linux-x86_64.egg) I do not know how do. please an idea – Richard Stallman May 28 '13 at 16:29
  • Maybe the real question has nothing to do with PYTHONPATH and is: how do I install Twisted for PyPy? – Armin Rigo May 29 '13 at 08:04
  • @ArminRigo I don't know. I do not think I can follow the op anymore. Apart from that, if you believe my answer contains misleading information I will be happy to delete it. – NlightNFotis May 29 '13 at 08:41
  • @NlightNFotis: No no, your answer is fine. I'm just trying to react to Richard's comments, which lead me to believe that your answer is not helpful for him. – Armin Rigo May 29 '13 at 13:27
0

You can install software on PyPy by using PyPy to run the software's installer. For example:

$ pypy setup.py install

You could try sharing installations between CPython and PyPy by setting PYTHONPATH but this is error prone (CPython and PyPy don't use exactly the same bytecode format, their native-code extension modules are not ABI compatible, etc) so unless you have very specific understanding of these issues and specific requirements for doing so, it's not really a good idea.

Jean-Paul Calderone
  • 47,755
  • 6
  • 94
  • 122