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portend's Issues

Please replace the 'jaraco.timing' with 'tempora.timing' in 'install_requires'

I use 'CherryPy' package that depend on 'portend'.
'portend' require 'jaraco.timing'.
'jaraco.timing' is deprecated and replaced with 'tempora.timing'.

Unfortunately, I can't packaging my app with 'jaraco.timing' using py2exe.
When use 'tempora.timing', my app is packaged using py2exe and works well.
(I modify the line 20 in the portend.py)

from jaraco import timing
->
from tempora import timing

Below is my test.

  • jaraco.timing
# test_jaracotiming.py
from jaraco import timing
print "jaraco.timing"
# setup_jaracotiming.py
from distutils.core import setup
import py2exe
setup(console=['test_jaracotiming.py'])
D:\work\py2exe_test>python setup_jaracotiming.py py2exe -c
D:\work\py2exe_test\dist>test_jaracotiming.exe
Traceback (most recent call last):
  File "test_jaracotiming.py", line 1, in <module>
ImportError: No module named jaraco
  • tempora.timing
# test_temporatiming.py
from tempora import timing
print "tempora.timing"
# setup_temporatiming.py
from distutils.core import setup
import py2exe
setup(console=['test_temporatiming.py'])
D:\work\py2exe_test>python setup_temporatiming.py py2exe -c
D:\work\py2exe_test\dist>test_temporatiming.exe
tempora.timing

Add explicit MIT License to source dist

Hey-lo,

I'm building a version of portend using conda for conda-forge. When possible, we try to include a link to the license file in the meta.yaml specification for the build; doing so requires an actual license file be bundled with the dist and (usually) that said license be indexed in an explicit MANIFEST.in file so that it gets included in the source distribution.

Would you consider adding a full copy of the MIT License to the bundle, along with an appropriate manifest?

Remove getaddrinfo fallback

In the port check routine, there is a fallback for when getaddrinfo raises an error. It's not obvious to me why that functionality exists or if it still serves as a purpose. Perhaps it's cruft from an older Python, or perhaps it's to support environments that are no longer in use, or perhaps it serves a real purpose.

Let's raise a warning when this functionality is used and see if anyone is using it.

3.1.0: pytest is failing on hosts without ipv6

I'm trying to package your module as an rpm package. So I'm using the typical build, install and test cycle used on building packages from non-root account.

  • "setup.py build"
  • "setup.py install --root </install/prefix>"
  • "pytest with PYTHONPATH pointing to sitearch and sitelib inside </install/prefix>

Looks like pytest is failing on hosts without ipv6:

+ PYTHONPATH=/home/tkloczko/rpmbuild/BUILDROOT/python-portend-3.1.0-2.fc35.x86_64/usr/lib64/python3.8/site-packages:/home/tkloczko/rpmbuild/BUILDROOT/python-portend-3.1.0-2.fc35.x86_64/usr/lib/python3.8/site-packages
+ /usr/bin/pytest -ra
=========================================================================== test session starts ============================================================================
platform linux -- Python 3.8.12, pytest-6.2.5, py-1.10.0, pluggy-0.13.1
rootdir: /home/tkloczko/rpmbuild/BUILD/portend-3.1.0, configfile: pytest.ini
plugins: shutil-1.7.0, virtualenv-1.7.0, mock-3.6.1, cov-2.12.1, anyio-3.3.4, forked-1.3.0, xdist-2.3.0, flaky-3.7.0, tornasync-0.6.0.post2, console-scripts-1.2.0, trio-0.7.0, timeout-2.0.1, asyncio-0.16.0, hypothesis-6.27.0, freezegun-0.4.2, flake8-1.0.7
collected 20 items

portend.py F...FF                                                                                                                                                    [ 30%]
test_portend.py .E.F.F.E.E.E.E                                                                                                                                       [100%]

================================================================================== ERRORS ==================================================================================
_____________________________________________ ERROR at setup of TestChecker.test_check_port_listening[AddressFamily.AF_INET6] ______________________________________________

request = <SubRequest 'listening_addr' for <Function test_check_port_listening[AddressFamily.AF_INET6]>>

    @pytest.fixture(**build_addr_infos())
    def listening_addr(request):
        af, socktype, proto, canonname, sa = request.param
>       sock = socket.socket(af, socktype, proto)

test_portend.py:37:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
_______________________________________________ ERROR at setup of TestChecker.test_free_with_timeout[AddressFamily.AF_INET6] _______________________________________________

request = <SubRequest 'listening_addr' for <Function test_free_with_timeout[AddressFamily.AF_INET6]>>

    @pytest.fixture(**build_addr_infos())
    def listening_addr(request):
        af, socktype, proto, canonname, sa = request.param
>       sock = socket.socket(af, socktype, proto)

test_portend.py:37:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
________________________________________ ERROR at setup of TestChecker.test_occupied_with_immediate_timeout[AddressFamily.AF_INET6] ________________________________________

request = <SubRequest 'listening_addr' for <Function test_occupied_with_immediate_timeout[AddressFamily.AF_INET6]>>

    @pytest.fixture(**build_addr_infos())
    def listening_addr(request):
        af, socktype, proto, canonname, sa = request.param
>       sock = socket.socket(af, socktype, proto)

test_portend.py:37:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
___________________________________________________________ ERROR at setup of test_main[AddressFamily.AF_INET6] ____________________________________________________________

request = <SubRequest 'listening_addr' for <Function test_main[AddressFamily.AF_INET6]>>

    @pytest.fixture(**build_addr_infos())
    def listening_addr(request):
        af, socktype, proto, canonname, sa = request.param
>       sock = socket.socket(af, socktype, proto)

test_portend.py:37:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
_______________________________________________________ ERROR at setup of test_main_timeout[AddressFamily.AF_INET6] ________________________________________________________

request = <SubRequest 'listening_addr' for <Function test_main_timeout[AddressFamily.AF_INET6]>>

    @pytest.fixture(**build_addr_infos())
    def listening_addr(request):
        af, socktype, proto, canonname, sa = request.param
>       sock = socket.socket(af, socktype, proto)

test_portend.py:37:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
================================================================================= FAILURES =================================================================================
__________________________________________________________________ [doctest] portend.Checker.assert_free ___________________________________________________________________
045
046         Assert that the given addr is free
047         in that all attempts to connect fail within the timeout
048         or raise a PortNotFree exception.
049
050         >>> free_port = find_available_local_port()
051
052         >>> Checker().assert_free('localhost', free_port)
UNEXPECTED EXCEPTION: OSError(97, 'Address family not supported by protocol')
Traceback (most recent call last):
  File "/usr/lib64/python3.8/doctest.py", line 1336, in __run
    exec(compile(example.source, filename, "single",
  File "<doctest portend.Checker.assert_free[1]>", line 1, in <module>
  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 71, in assert_free
    list(itertools.starmap(self._connect, info))
  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 74, in _connect
    s = socket.socket(af, socktype, proto)
  File "/usr/lib64/python3.8/socket.py", line 231, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 97] Address family not supported by protocol
/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py:52: UnexpectedException
__________________________________________________________________________ [doctest] portend.free __________________________________________________________________________
099
100     Wait for the specified port to become free (dropping or rejecting
101     requests). Return when the port is free or raise a Timeout if timeout has
102     elapsed.
103
104     Timeout may be specified in seconds or as a timedelta.
105     If timeout is None or ∞, the routine will run indefinitely.
106
107     >>> free('localhost', find_available_local_port())
UNEXPECTED EXCEPTION: OSError(97, 'Address family not supported by protocol')
Traceback (most recent call last):
  File "/usr/lib64/python3.8/doctest.py", line 1336, in __run
    exec(compile(example.source, filename, "single",
  File "<doctest portend.free[0]>", line 1, in <module>
  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 122, in free
    Checker(timeout=0.1).assert_free(host, port)
  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 71, in assert_free
    list(itertools.starmap(self._connect, info))
  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 74, in _connect
    s = socket.socket(af, socktype, proto)
  File "/usr/lib64/python3.8/socket.py", line 231, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 97] Address family not supported by protocol
/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py:107: UnexpectedException
________________________________________________________________________ [doctest] portend.occupied ________________________________________________________________________
132
133     Wait for the specified port to become occupied (accepting requests).
134     Return when the port is occupied or raise a Timeout if timeout has
135     elapsed.
136
137     Timeout may be specified in seconds or as a timedelta.
138     If timeout is None or ∞, the routine will run indefinitely.
139
140     >>> occupied('localhost', find_available_local_port(), .1)
Differences (unified diff with -expected +actual):
    @@ -1,3 +1,14 @@
     Traceback (most recent call last):
    -...
    -Timeout: Port ... not bound on localhost.
    +  File "/usr/lib64/python3.8/doctest.py", line 1336, in __run
    +    exec(compile(example.source, filename, "single",
    +  File "<doctest portend.occupied[0]>", line 1, in <module>
    +    occupied('localhost', find_available_local_port(), .1)
    +  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 157, in occupied
    +    Checker(timeout=0.5).assert_free(host, port)
    +  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 71, in assert_free
    +    list(itertools.starmap(self._connect, info))
    +  File "/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py", line 74, in _connect
    +    s = socket.socket(af, socktype, proto)
    +  File "/usr/lib64/python3.8/socket.py", line 231, in __init__
    +    _socket.socket.__init__(self, family, type, proto, fileno)
    +OSError: [Errno 97] Address family not supported by protocol

/home/tkloczko/rpmbuild/BUILD/portend-3.1.0/portend.py:140: DocTestFailure
_____________________________________________________ TestChecker.test_check_port_nonlistening[AddressFamily.AF_INET6] _____________________________________________________

self = <test_portend.TestChecker object at 0x7f8ae2dff430>, nonlistening_addr = ('::', 56509, 0, 0)

    def test_check_port_nonlistening(self, nonlistening_addr):
>       portend.Checker().assert_free(nonlistening_addr)

test_portend.py:61:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
portend.py:71: in assert_free
    list(itertools.starmap(self._connect, info))
portend.py:74: in _connect
    s = socket.socket(af, socktype, proto)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
___________________________________________________ TestChecker.test_free_with_immediate_timeout[AddressFamily.AF_INET6] ___________________________________________________

self = <test_portend.TestChecker object at 0x7f8ae2dc5340>, nonlistening_addr = ('::', 56509, 0, 0), immediate_timeout = None

    def test_free_with_immediate_timeout(self, nonlistening_addr, immediate_timeout):
        host, port = nonlistening_addr[:2]
>       portend.free(host, port, timeout=1.0)

test_portend.py:65:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
portend.py:122: in free
    Checker(timeout=0.1).assert_free(host, port)
portend.py:71: in assert_free
    list(itertools.starmap(self._connect, info))
portend.py:74: in _connect
    s = socket.socket(af, socktype, proto)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <socket.socket fd=-1, family=AddressFamily.AF_UNSPEC, type=0, proto=0>, family = <AddressFamily.AF_INET6: 10>, type = <SocketKind.SOCK_STREAM: 1>, proto = 6
fileno = None

    def __init__(self, family=-1, type=-1, proto=-1, fileno=None):
        # For user code address family and type values are IntEnum members, but
        # for the underlying _socket.socket they're just integers. The
        # constructor of _socket.socket converts the given argument to an
        # integer automatically.
        if fileno is None:
            if family == -1:
                family = AF_INET
            if type == -1:
                type = SOCK_STREAM
            if proto == -1:
                proto = 0
>       _socket.socket.__init__(self, family, type, proto, fileno)
E       OSError: [Errno 97] Address family not supported by protocol

/usr/lib64/python3.8/socket.py:231: OSError
========================================================================= short test summary info ==========================================================================
ERROR test_portend.py::TestChecker::test_check_port_listening[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
ERROR test_portend.py::TestChecker::test_free_with_timeout[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
ERROR test_portend.py::TestChecker::test_occupied_with_immediate_timeout[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
ERROR test_portend.py::test_main[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
ERROR test_portend.py::test_main_timeout[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
FAILED portend.py::portend.Checker.assert_free
FAILED portend.py::portend.free
FAILED portend.py::portend.occupied
FAILED test_portend.py::TestChecker::test_check_port_nonlistening[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
FAILED test_portend.py::TestChecker::test_free_with_immediate_timeout[AddressFamily.AF_INET6] - OSError: [Errno 97] Address family not supported by protocol
================================================================== 5 failed, 10 passed, 5 errors in 0.93s ==================================================================

find_available_local_port fails with OSError when IPv6 is not enabled

I am trying to install portend (python2-portend) on Arch Linux and am running into the following error:

Does this have to do with me using IPv4? I have tried to enable IPv6 and try again to no avail. IPv6 modules are enabled by default in linux, so I am not sure if this is something I am doing wrong or not.

screenshot_20170917_204630

Why the tempora dependency

While I appreciate the strong focus you have on testing and putting core functionality in core packages, I really wonder if in the case of tempora for portend this might be a bit overkill.

All you really use it for is to check if time_passed = time.now() - start_time in the occupied/free checks.
Adding tempora also ads it's (in this case unused) dependency pytz.
Should super-simple Python-core functionality really require it's own package-dependency?

Race condition in `free` and `occupied`

In portend.free, if the full duration of the timeout elapses between L112 and L114, a Timeout error will be thrown even if the port has been free the whole time. This can happen when debugging; you can reproduce it as follows on Python 3.7:

python -m pdb -c 'break portend.py:114' -c 'continue' -c 'import time; time.sleep(1.0)' -c 'continue' -c 'quit' -m portend --timeout=0.5 localhost:12345 free

I think I might have also observed it under other circumstances, but don't have a minimal repro to show at the moment. portend.occupied has an analogous problem.

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