[pypy-issue] Issue #2183: PyPy 4.0.0 SSL module appears to leak memory. (pypy/pypy)

[Cory Benfield]

New issue 2183: PyPy 4.0.0 SSL module appears to leak memory.
https://bitbucket.org/pypy/pypy/issues/2183/pypy-400-ssl-module-appears-to-leak-memory

Cory Benfield:

Originally raised as [Requests issue #2862](https://github.com/kennethreitz/requests/issues/2862).

It seems that somewhere in the PyPy stack, the SSL module leaks memory. The following script slowly but indefinitely leaks memory on my machine (OS X 10.11 El Capitan) under the latest two PyPy releases (4.0.0 and 2.6.1) at least. The script does not leak under CPython 2.7.10.

The script is below:


```
#!python

import gc
import time
import socket
import ssl
import sys

def main():
    while True:
        ctx = ssl.create_default_context()
        s = socket.create_connection(('www.bing.com', 443))
        s = ctx.wrap_socket(s, server_hostname='www.bing.com')
        s.close()

        time.sleep(0.1)
        sys.stderr.write('.')
        sys.stderr.flush()
        gc.collect()

if __name__ == '__main__':
    main()

```

Please let me know if there's any additional diagnostics you'd like to see.