pip: failed when running ./tools/vscode/refresh_compdb.sh

[qinggniq]

Title: failed when running ./tools/vscode/refresh_compdb.sh

Description:

$ git pull upstream main
$ ./tools/vscode/refresh_compdb.sh
INFO: Repository pylint_pip3 instantiated at:
  /data/envoy-learn/istio/envoy/WORKSPACE:17:25: in <toplevel>
  /data/envoy-learn/istio/envoy/bazel/repositories_extra.bzl:124:17: in envoy_dependencies_extra
  /data/envoy-learn/istio/envoy/bazel/repositories_extra.bzl:81:16: in _python_deps
  /data/.cache/envoy-compdb/_bazel_wangcong01/b938f25908549f924e43a4413d4b5096/external/rules_python/python/pip.bzl:53:19: in pip_install
Repository rule pip_repository defined at:
  /data/.cache/envoy-compdb/_bazel_wangcong01/b938f25908549f924e43a4413d4b5096/external/rules_python/python/pip_install/pip_repository.bzl:67:33: in <toplevel>
ERROR: An error occurred during the fetch of repository 'pylint_pip3':
   Traceback (most recent call last):
	File "/data/.cache/envoy-compdb/_bazel_wangcong01/b938f25908549f924e43a4413d4b5096/external/rules_python/python/pip_install/pip_repository.bzl", line 63, column 13, in _pip_repository_impl
		fail("rules_python_external failed: %s (%s)" % (result.stdout, result.stderr))
Error in fail: rules_python_external failed: Collecting flake8==3.9.0
  Using cached https://files.pythonhosted.org/packages/2a/cb/cd92e789442e234b8701bf6e886a55fbc83b7fd6e529b047e20b9cf196e8/flake8-3.9.0-py2.py3-none-any.whl
.
.
.

Collecting typing-extensions>=3.6.4; python_version < "3.8"
 (ERROR: In --require-hashes mode, all requirements must have their versions pinned with ==. These do not:
    typing-extensions>=3.6.4; python_version < "3.8" from https://files.pythonhosted.org/packages/60/7a/e881b5abb54db0e6e671ab088d079c57ce54e8a01a3ca443f561ccadb37e/typing_extensions-3.7.4.3-py3-none-any.whl#sha256=7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918 (from importlib-metadata==3.9.0->-r /data/.cache/envoy-compdb/_bazel_wangcong01/b938f25908549f924e43a4413d4b5096/external/envoy/tools/code_format/requirements.txt (line 4))

Repro steps:

• python version Python 3.6.9
• pip version pip 21.0.1

I use below requirement.txt in my machine, and run /usr/bin/python3 -m pip wheel -r ./requirements.txt --require-hashes

importlib-metadata==3.9.0 \
    --hash=sha256:6fd684b4c6c7bb36d57e93d57fc244b5ffc08faa1c298bcda3dfbbbf19d7550a \
    --hash=sha256:036eae7ebbd41db176774c42e80f3288a1e41c7ebfc8ed099a94653973ebd00f

Note:
When I replace importlib-metadata version from 3.9.0 to 2.0.0 at

envoy/tools/code_format/requirements.txt

Lines 4 to 7 in 29739fc

	importlib-metadata==3.9.0 \
	--hash=sha256:6fd684b4c6c7bb36d57e93d57fc244b5ffc08faa1c298bcda3dfbbbf19d7550a \
	--hash=sha256:036eae7ebbd41db176774c42e80f3288a1e41c7ebfc8ed099a94653973ebd00f
	mccabe==0.6.1 \

, everything works well.

importlib-metadata==2.0.0 \
    --hash=sha256:77a540690e24b0305878c37ffd421785a6f7e53c8b5720d211b211de8d0e95da \
    --hash=sha256:cefa1a2f919b866c5beb7c9f7b0ebb4061f30a8a9bf16d609b000e2dfaceb9c3

Related Link
python-poetry/poetry#3472
cjolowicz/hypermodern-python#174

[qinggniq]

cc @phlax, Does ci work well? I am not clear what causes it.

[phlax]

yep ci works well

i think the python version - altho not clear why 3.6.9 would pull typing-extensions - ill test later today with different versions of python

[qinggniq]

It works on python 3.8.0

[phlax]

i think this is resolved and docs updated in #15764