• Poetry version: 1.2.2
• Python version: 3.8.13
• OS version and name: macOS 13.0.1
• pyproject.toml:

`[tool.poetry]
name = "debug"
version = "0.1.0"
description = ""
authors = []
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.8"
statsmodels = "^0.13.5"

[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"`

• [ x ] I am on the latest stable Poetry version, installed using a recommended method.
• [ x ] I have searched the issues of this repo and believe that this is not a duplicate.
• [ x ] I have consulted the FAQ and blog for any relevant entries or release notes.
• [ x ] If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

When trying to export poetry.lock to requirements.txt format i receive an error:
Dependency walk failed at scipy(>=1.3, <1.9)

After digging deeper it seems like the error is coming from statsmodels which leads to scipy being in poetry.lock with 2 different versions.

poetry.lock:
scipy = [ {file = "scipy-1.8.1-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:65b77f20202599c51eb2771d11a6b899b97989159b7975e9b5259594f1d35ef4"}, {file = "scipy-1.8.1-cp310-cp310-macosx_12_0_arm64.whl", hash = "sha256:e013aed00ed776d790be4cb32826adb72799c61e318676172495383ba4570aa4"}, {file = "scipy-1.8.1-cp310-cp310-macosx_12_0_universal2.macosx_10_9_x86_64.whl", hash = "sha256:02b567e722d62bddd4ac253dafb01ce7ed8742cf8031aea030a41414b86c1125"}, {file = "scipy-1.8.1-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:1da52b45ce1a24a4a22db6c157c38b39885a990a566748fc904ec9f03ed8c6ba"}, {file = "scipy-1.8.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:a0aa8220b89b2e3748a2836fbfa116194378910f1a6e78e4675a095bcd2c762d"}, {file = "scipy-1.8.1-cp310-cp310-win_amd64.whl", hash = "sha256:4e53a55f6a4f22de01ffe1d2f016e30adedb67a699a310cdcac312806807ca81"}, {file = "scipy-1.8.1-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:28d2cab0c6ac5aa131cc5071a3a1d8e1366dad82288d9ec2ca44df78fb50e649"}, {file = "scipy-1.8.1-cp38-cp38-macosx_12_0_arm64.whl", hash = "sha256:6311e3ae9cc75f77c33076cb2794fb0606f14c8f1b1c9ff8ce6005ba2c283621"}, {file = "scipy-1.8.1-cp38-cp38-macosx_12_0_universal2.macosx_10_9_x86_64.whl", hash = "sha256:3b69b90c9419884efeffaac2c38376d6ef566e6e730a231e15722b0ab58f0328"}, {file = "scipy-1.8.1-cp38-cp38-manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:6cc6b33139eb63f30725d5f7fa175763dc2df6a8f38ddf8df971f7c345b652dc"}, {file = "scipy-1.8.1-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:9c4e3ae8a716c8b3151e16c05edb1daf4cb4d866caa385e861556aff41300c14"}, {file = "scipy-1.8.1-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:23b22fbeef3807966ea42d8163322366dd89da9bebdc075da7034cee3a1441ca"}, {file = "scipy-1.8.1-cp38-cp38-win32.whl", hash = "sha256:4b93ec6f4c3c4d041b26b5f179a6aab8f5045423117ae7a45ba9710301d7e462"}, {file = "scipy-1.8.1-cp38-cp38-win_amd64.whl", hash = "sha256:70ebc84134cf0c504ce6a5f12d6db92cb2a8a53a49437a6bb4edca0bc101f11c"}, {file = "scipy-1.8.1-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:f3e7a8867f307e3359cc0ed2c63b61a1e33a19080f92fe377bc7d49f646f2ec1"}, {file = "scipy-1.8.1-cp39-cp39-macosx_12_0_arm64.whl", hash = "sha256:2ef0fbc8bcf102c1998c1f16f15befe7cffba90895d6e84861cd6c6a33fb54f6"}, {file = "scipy-1.8.1-cp39-cp39-macosx_12_0_universal2.macosx_10_9_x86_64.whl", hash = "sha256:83606129247e7610b58d0e1e93d2c5133959e9cf93555d3c27e536892f1ba1f2"}, {file = "scipy-1.8.1-cp39-cp39-manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:93d07494a8900d55492401917a119948ed330b8c3f1d700e0b904a578f10ead4"}, {file = "scipy-1.8.1-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:d3b3c8924252caaffc54d4a99f1360aeec001e61267595561089f8b5900821bb"}, {file = "scipy-1.8.1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:70de2f11bf64ca9921fda018864c78af7147025e467ce9f4a11bc877266900a6"}, {file = "scipy-1.8.1-cp39-cp39-win32.whl", hash = "sha256:1166514aa3bbf04cb5941027c6e294a000bba0cf00f5cdac6c77f2dad479b434"}, {file = "scipy-1.8.1-cp39-cp39-win_amd64.whl", hash = "sha256:9dd4012ac599a1e7eb63c114d1eee1bcfc6dc75a29b589ff0ad0bb3d9412034f"}, {file = "scipy-1.8.1.tar.gz", hash = "sha256:9e3fb1b0e896f14a85aa9a28d5f755daaeeb54c897b746df7a55ccb02b340f33"}, {file = "scipy-1.9.3-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:1884b66a54887e21addf9c16fb588720a8309a57b2e258ae1c7986d4444d3bc0"}, {file = "scipy-1.9.3-cp310-cp310-macosx_12_0_arm64.whl", hash = "sha256:83b89e9586c62e787f5012e8475fbb12185bafb996a03257e9675cd73d3736dd"}, {file = "scipy-1.9.3-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:1a72d885fa44247f92743fc20732ae55564ff2a519e8302fb7e18717c5355a8b"}, {file = "scipy-1.9.3-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:d01e1dd7b15bd2449c8bfc6b7cc67d630700ed655654f0dfcf121600bad205c9"}, {file = "scipy-1.9.3-cp310-cp310-win_amd64.whl", hash = "sha256:68239b6aa6f9c593da8be1509a05cb7f9efe98b80f43a5861cd24c7557e98523"}, {file = "scipy-1.9.3-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:b41bc822679ad1c9a5f023bc93f6d0543129ca0f37c1ce294dd9d386f0a21096"}, {file = "scipy-1.9.3-cp311-cp311-macosx_12_0_arm64.whl", hash = "sha256:90453d2b93ea82a9f434e4e1cba043e779ff67b92f7a0e85d05d286a3625df3c"}, {file = "scipy-1.9.3-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:83c06e62a390a9167da60bedd4575a14c1f58ca9dfde59830fc42e5197283dab"}, {file = "scipy-1.9.3-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:abaf921531b5aeaafced90157db505e10345e45038c39e5d9b6c7922d68085cb"}, {file = "scipy-1.9.3-cp311-cp311-win_amd64.whl", hash = "sha256:06d2e1b4c491dc7d8eacea139a1b0b295f74e1a1a0f704c375028f8320d16e31"}, {file = "scipy-1.9.3-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:5a04cd7d0d3eff6ea4719371cbc44df31411862b9646db617c99718ff68d4840"}, {file = "scipy-1.9.3-cp38-cp38-macosx_12_0_arm64.whl", hash = "sha256:545c83ffb518094d8c9d83cce216c0c32f8c04aaf28b92cc8283eda0685162d5"}, {file = "scipy-1.9.3-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:0d54222d7a3ba6022fdf5773931b5d7c56efe41ede7f7128c7b1637700409108"}, {file = "scipy-1.9.3-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:cff3a5295234037e39500d35316a4c5794739433528310e117b8a9a0c76d20fc"}, {file = "scipy-1.9.3-cp38-cp38-win_amd64.whl", hash = "sha256:2318bef588acc7a574f5bfdff9c172d0b1bf2c8143d9582e05f878e580a3781e"}, {file = "scipy-1.9.3-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:d644a64e174c16cb4b2e41dfea6af722053e83d066da7343f333a54dae9bc31c"}, {file = "scipy-1.9.3-cp39-cp39-macosx_12_0_arm64.whl", hash = "sha256:da8245491d73ed0a994ed9c2e380fd058ce2fa8a18da204681f2fe1f57f98f95"}, {file = "scipy-1.9.3-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:4db5b30849606a95dcf519763dd3ab6fe9bd91df49eba517359e450a7d80ce2e"}, {file = "scipy-1.9.3-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c68db6b290cbd4049012990d7fe71a2abd9ffbe82c0056ebe0f01df8be5436b0"}, {file = "scipy-1.9.3-cp39-cp39-win_amd64.whl", hash = "sha256:5b88e6d91ad9d59478fafe92a7c757d00c59e3bdc3331be8ada76a4f8d683f58"}, {file = "scipy-1.9.3.tar.gz", hash = "sha256:fbc5c05c85c1a02be77b1ff591087c83bc44579c6d2bd9fb798bb64ea5e1a027"},

Original error:
`Source (poetry-locked): 1 packages found for statsmodels >=0.13.5,<0.14.0

Stack trace:

12 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/cleo/application.py:329 in run
327│
328│ try:
→ 329│ exit_code = self._run(io)
330│ except Exception as e:
331│ if not self._catch_exceptions:

11 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry/console/application.py:185 in _run
183│ self._load_plugins(io)
184│
→ 185│ exit_code: int = super()._run(io)
186│ return exit_code
187│

10 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/cleo/application.py:423 in _run
421│ io.input.set_stream(stream)
422│
→ 423│ exit_code = self._run_command(command, io)
424│ self._running_command = None
425│

9 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/cleo/application.py:465 in _run_command
463│
464│ if error is not None:
→ 465│ raise error
466│
467│ return event.exit_code

8 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/cleo/application.py:449 in _run_command
447│
448│ if event.command_should_run():
→ 449│ exit_code = command.run(io)
450│ else:
451│ exit_code = ConsoleCommandEvent.RETURN_CODE_DISABLED

7 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/cleo/commands/base_command.py:119 in run
117│ io.input.validate()
118│
→ 119│ status_code = self.execute(io)
120│
121│ if status_code is None:

6 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/cleo/commands/command.py:83 in execute
81│
82│ try:
→ 83│ return self.handle()
84│ except KeyboardInterrupt:
85│ return 1

5 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry_plugin_export/command.py:107 in handle
105│ exporter.with_credentials(self.option("with-credentials"))
106│ exporter.with_urls(not self.option("without-urls"))
→ 107│ exporter.export(fmt, Path.cwd(), output or self.io)
108│

4 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry_plugin_export/exporter.py:86 in export
84│ raise ValueError(f"Invalid export format: {fmt}")
85│
→ 86│ getattr(self, self.EXPORT_METHODS[fmt])(cwd, output)
87│
88│ def _export_generic_txt(

3 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry_plugin_export/exporter.py:101 in _export_generic_txt
99│ )
100│
→ 101│ for dependency_package in get_project_dependency_packages(
102│ self._poetry.locker,
103│ project_requires=root.all_requires,

2 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry_plugin_export/walker.py:103 in get_project_dependency_packages
101│ selected.append(dependency)
102│
→ 103│ for package, dependency in get_project_dependencies(
104│ project_requires=selected,
105│ locked_packages=repository.packages,

1 ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry_plugin_export/walker.py:129 in get_project_dependencies
127│ )
128│
→ 129│ nested_dependencies = walk_dependencies(
130│ dependencies=project_requires,
131│ packages_by_name=packages_by_name,

RuntimeError

Dependency walk failed at scipy (>=1.3,<1.9)

at ~/Library/Application Support/pypoetry/venv/lib/python3.8/site-packages/poetry_plugin_export/walker.py:155 in walk_dependencies
151│ requirement, packages_by_name, nested_dependencies
152│ )
153│
154│ if not locked_package:
→ 155│ raise RuntimeError(f"Dependency walk failed at {requirement}")
156│
157│ if requirement.extras:
158│ locked_package = locked_package.with_features(requirement.extras)`