vscodeで「pipenv install matplotlib」が出来ない(numpyは出来る)

Question

タイトルのコマンドをvscodeのターミナルで行うと下記エラー(エラー内容)が出ました
色々、調べましたが該当するものがなかったため、
ご教示いただきたく投稿しました。

【環境】
PC:windows10
python:3.8(64bit)
pip:19.3
pipenv:2018.11.26
VScode:VSCodeUserSetup-x64-1.39.2
エラー対策用:visualcppbuildtools_full
→C++ビルドアップツール

エラー内容

Installing matplotlib…
Installing...Adding matplotlib to Pipfile's [packages]…
Installation Succeeded
Pipfile.lock (f4aeb4) out of date, updating to (2bfdca)…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
Locking Failed!
[pipenv.exceptions.ResolutionFailure]: File "c:/users/user/appdata/local/programs/python/python38/lib/site-packages/pipenv/resolver.py", line 61, in resolve
[pipenv.exceptions.ResolutionFailure]: return resolve_deps(
[pipenv.exceptions.ResolutionFailure]: File "c:\users\user\appdata\local\programs\python\python38\lib\site-packages\pipenv\utils.py", line 718, in resolve_deps
[pipenv.exceptions.ResolutionFailure]: resolved_tree, hashes, markers_lookup, resolver = actually_resolve_deps(
[pipenv.exceptions.ResolutionFailure]: File "c:\users\user\appdata\local\programs\python\python38\lib\site-packages\pipenv\utils.py", line 480, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]: resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]: File "c:\users\user\appdata\local\programs\python\python38\lib\site-packages\pipenv\utils.py", line 395, in resolve
[pipenv.exceptions.ResolutionFailure]: raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]: pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches and
[pipenv.exceptions.ResolutionFailure]: No versions found
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches and
No versions found
Was https://pypi.org/simple reachable?
[pipenv.exceptions.ResolutionFailure]: return resolve_deps(
[pipenv.exceptions.ResolutionFailure]: File "c:\users\user\appdata\local\programs\python\python38\lib\site-packages\pipenv\utils.py", line 718, in resolve_deps
[pipenv.exceptions.ResolutionFailure]: resolved_tree, hashes, markers_lookup, resolver = actually_resolve_deps(
[pipenv.exceptions.ResolutionFailure]: File "c:\users\user\appdata\local\programs\python\python38\lib\site-packages\pipenv\utils.py", line 480, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]: resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]: File "c:\users\user\appdata\local\programs\python\python38\lib\site-packages\pipenv\utils.py", line 395, in resolve
[pipenv.exceptions.ResolutionFailure]: raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]: pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches and
[pipenv.exceptions.ResolutionFailure]: No versions found
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches and
No versions found
Was https://pypi.org/simple reachable?

---

Answer 1

python 3.8 用のはまだ出揃ってないようですね。

試してみたら、私は kiwisolver でひっかかりました。https://pypi.org/project/kiwisolver/#files を見ると、まだ wheelが3.7用までしかないようです。自分でビルドすればいいんですが、visualcppbuildtools_full.exe に「最大4GBが必要です」を言われてめげました。

3.7に下げるほうが早そうです。いかがでしょうか。

Comments

[退会済みユーザー]

そうだったのですね。
色々、便利な機能が追加されましたので試したかったのですが、
揃うまでは下げたほうがよさそうですね。
ご協力いただきありがとうございました。

[matobaa]

kiwisolver の3.8版wheelが登場していたのでトライしてみましたが、今度はmatplotlibで引っかかってしまいました。　https://pypi.org/project/matplotlib/#files を待ってます

[matobaa]

プレリリース matplotlib==3.2.0rc1 の 3.8版wheelがOct 25付で出てました。3.8上でもすんなり入ってくれました。