unable to load extension modules compiled with pypy v7.0.0

[ilsawa]

I compile this module pypy v7.0.0

pypy setup.py install --record files.txt

When working, I get the following error:

Error while requesting best block header:
Traceback (most recent call last):
  File "/usr/local/lib/pypy2.7/dist-packages/twisted/internet/defer.py", line 654, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/usr/local/lib/pypy2.7/dist-packages/twisted/internet/defer.py", line 1475, in gotResult
    _inlineCallbacks(r, g, status)
  File "/usr/local/lib/pypy2.7/dist-packages/twisted/internet/defer.py", line 1416, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/local/lib/pypy2.7/dist-packages/twisted/python/failure.py", line 491, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
--- <exception caught here> ---
  File "/opt/lyra2re3/p2pool-vtc/p2pool/util/deferral.py", line 41, in f
    result = yield func(*args, **kwargs)
  File "/usr/local/lib/pypy2.7/dist-packages/twisted/internet/defer.py", line 1418, in _inlineCallbacks
    result = g.send(result)
  File "/opt/lyra2re3/p2pool-vtc/p2pool/node.py", line 218, in poll_header
    handle_header((yield self.factory.conn.value.get_block_header(self.bitcoind_work.value['previous_block'])))
  File "/opt/lyra2re3/p2pool-vtc/p2pool/node.py", line 200, in handle_header
    if not (self.net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(new_header)) <= self.bitcoind_work.value['bits'].target):
  File "/opt/lyra2re3/p2pool-vtc/p2pool/bitcoin/networks/vertcoin.py", line 17, in <lambda>
    POW_FUNC=lambda data: pack.IntType(256).unpack(__import__('lyra2re3_hash').getPoWHash(data))
  File "/usr/local/lib/pypy2.7/dist-packages/lyra2re2_hash-1.2.1-py2.7-linux-x86_64.egg/lyra2re3_hash.py", line 7, in <module>
    __bootstrap__()
  File "/usr/local/lib/pypy2.7/dist-packages/lyra2re2_hash-1.2.1-py2.7-linux-x86_64.egg/lyra2re3_hash.py", line 6, in __bootstrap__
    imp.load_dynamic(__name__,__file__)
exceptions.ImportError: unable to load extension module '/usr/local/lib/pypy2.7/dist-packages/lyra2re2_hash-1.2.1-py2.7-linux-x86_64.egg/lyra2re3_hash.pypy-41-x86_64-linux-gnu.so': /usr/local/lib/pypy2.7/dist-packages/lyra2re2_hash-1.2.1-py2.7-linux-x86_64.egg/lyra2re3_hash.pypy-41-x86_64-linux-gnu.so: undefined symbol: _Py_Dealloc

[metalicjames]

I am not familiar with PyPy but _Py_Dealloc comes from libpython2.7.a with CPython.

[ilsawa]

It is a pity that you do not use, now almost all nodes of p2ool work on PyPy. It is much more efficient than a Python.
Here a similar problem has been solved: dgrunwald/rust-cpython#122 (comment)
But I do not know how to apply it to your sources.

[ilsawa]

Found how to fix it, there's no error now.
I replaced https://github.com/metalicjames/lyra2re-hash-python/blob/master/setup.py#L1 with from distutils.core import setup Extension , and it helped.
But after this replacement, the modules are installed in /usr/local/lib/pypy2.7/dist-packages and not in a separate directory