pdm outdated check: ChunkedEncodingError

[andrewKyres]

We should be able to check for outdated packages, as mentioned in this comment:
Done, now you can test on the master branch. Note that --outdated is just an alias of --dry-run

Originally posted by @frostming in #358 (comment)

However, I get the following output:

root@9e60eec6f1a2:/app# pdm update --dry-run --unconstrained --top -v
STATUS: Resolving dependencies
pdm.termui: ======== Start resolving requirements ========
pdm.termui:   PyMySQL
pdm.termui:   black[d]
pdm.termui:   fastapi
pdm.termui:   geocoder
pdm.termui:   gunicorn
pdm.termui:   iso8601
pdm.termui:   oauthlib
pdm.termui:   openai
pdm.termui:   python-dateutil
pdm.termui:   pytz
pdm.termui:   requests-oauthlib
pdm.termui:   requests
pdm.termui:   salesforce-oauth-request
pdm.termui:   sentry-sdk
pdm.termui:   simple-salesforce
pdm.termui:   sqlalchemy
pdm.termui:   timezonefinder
pdm.termui:   uvicorn[standard]
pdm.termui:   ward
pdm.termui:   ruff
pdm.termui:   watchfiles
pdm.termui:   tiktoken
pdm.termui:   python>=3.11.2
pdm.termui:   Adding requirement PyMySQL
Traceback (most recent call last):
  File "/root/.local/bin/pdm", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/core.py", line 255, in main
    return Core().main(args)
           ^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/core.py", line 193, in main
    raise cast(Exception, err).with_traceback(traceback) from None
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/core.py", line 188, in main
    self.handle(project, options)
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/core.py", line 154, in handle
    command.handle(project, options)
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/cli/commands/update.py", line 62, in handle
    actions.do_update(
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/cli/actions.py", line 377, in do_update
    resolved = do_lock(
               ^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/cli/actions.py", line 98, in do_lock
    mapping, dependencies = resolve(
                            ^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/resolver/core.py", line 35, in resolve
    result = resolver.resolve(requirements, max_rounds)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/resolvelib/resolvers.py", line 546, in resolve
    state = resolution.resolve(requirements, max_rounds=max_rounds)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/resolvelib/resolvers.py", line 397, in resolve
    self._add_to_criteria(self.state.criteria, r, parent=None)
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/resolvelib/resolvers.py", line 173, in _add_to_criteria
    if not criterion.candidates:
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/resolvelib/structs.py", line 127, in __bool__
    next(iter(self))
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/resolver/providers.py", line 241, in matches_gen
    yield from super_find()
               ^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/resolver/providers.py", line 139, in matches_gen
    candidates = self._find_candidates(reqs[0])
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/resolver/providers.py", line 123, in _find_candidates
    return self.repository.find_candidates(requirement, requirement.prerelease or self.allow_prereleases)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/models/repositories.py", line 148, in find_candidates
    cans = LazySequence(self._find_candidates(requirement))
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/pdm/models/repositories.py", line 323, in _find_candidates
    for c in finder.find_all_packages(requirement.project_name, allow_yanked=requirement.is_pinned)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/unearth/finder.py", line 281, in find_all_packages
    return LazySequence(self._find_packages(package_name, allow_yanked, hashes))
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/unearth/finder.py", line 263, in _find_packages
    return sorted(all_packages, key=self._sort_key, reverse=True)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/unearth/collector.py", line 133, in collect_links_from_location
    yield from _collect_links_from_index(session, location)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/unearth/collector.py", line 153, in _collect_links_from_index
    page = fetch_page(session, location)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/unearth/collector.py", line 140, in fetch_page
    resp = _get_html_response(session, location)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/unearth/collector.py", line 175, in _get_html_response
    resp = session.get(
           ^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/requests/sessions.py", line 600, in get
    return self.request("GET", url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/requests/sessions.py", line 587, in request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/requests/sessions.py", line 745, in send
    r.content
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/requests/models.py", line 899, in content
    self._content = b"".join(self.iter_content(CONTENT_CHUNK_SIZE)) or b""
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/share/pdm/venv/lib/python3.11/site-packages/requests/models.py", line 818, in generate
    raise ChunkedEncodingError(e)
requests.exceptions.ChunkedEncodingError: ('Connection broken: IncompleteRead(16740 bytes read, -8370 more expected)', IncompleteRead(16740 bytes read, -8370 more expected))

Here's what may be relevant from my pyproject.toml:

dependencies = [
    "PyMySQL==1.0.3",
    "black[d]==23.3.0",
    "fastapi==0.95.1",
    "geocoder==1.38.1",
    "gunicorn==20.1.0",
    "iso8601==1.1.0",
    "oauthlib==3.2.2",
    "openai==0.27.6",
    "python-dateutil==2.8.2",
    "pytz==2023.3",
    "requests-oauthlib==1.3.1",
    "requests==2.30.0",
    "salesforce-oauth-request==1.0.6",
    "sentry-sdk==1.22.1",
    "simple-salesforce==1.12.3",
    "sqlalchemy==2.0.12",
    "timezonefinder==6.2.0",
    "uvicorn[standard]==0.22.0",
    "ward==0.67.2b0",
    "ruff==0.0.265",
    "watchfiles==0.19.0",
    "tiktoken==0.3.3",
]
requires-python = ">=3.11.2"
license = {text = "MIT"}

[tool.pdm]
[[tool.pdm.source]]
name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true

[build-system]
requires = ["pdm-pep517>=1.0.0"]
build-backend = "pdm.pep517.api"

[andrewKyres]

Updating 2.5.5 -> 2.5.6 fixed this issue!