Pyright install breaks with npm v7

[nwh]

I am setting up a fresh instance of macOS Big Sur. I think I am running into this upstream npm issue: npm/cli#2277

0 verbose cli [
0 verbose cli   '/opt/brew/Cellar/node/15.5.1/bin/node',
0 verbose cli   '/opt/brew/bin/npm',
0 verbose cli   '-g',
0 verbose cli   '--prefix',
0 verbose cli   '/Users/nw_henderson/github.com/nwh/emacs.d/.cache/lsp/npm/pyright',
0 verbose cli   'install',
0 verbose cli   'pyright'
0 verbose cli ]
1 info using [email protected]
2 info using [email protected]
3 timing config:load:defaults Completed in 1ms
4 timing config:load:file:/opt/brew/lib/node_modules/npm/npmrc Completed in 1ms
5 timing config:load:builtin Completed in 1ms
6 timing config:load:cli Completed in 1ms
7 timing config:load:env Completed in 0ms
8 timing config:load:file:/Users/nw_henderson/github.com/nwh/emacs.d/.cache/lsp/npm/pyright/.npmrc Completed in 0ms
9 timing config:load:project Completed in 1ms
10 timing config:load:file:/Users/nw_henderson/.npmrc Completed in 0ms
11 timing config:load:user Completed in 0ms
12 timing config:load:file:/Users/nw_henderson/github.com/nwh/emacs.d/.cache/lsp/npm/pyright/etc/npmrc Completed in 0ms
13 timing config:load:global Completed in 0ms
14 timing config:load:cafile Completed in 0ms
15 timing config:load:validate Completed in 0ms
16 timing config:load:setUserAgent Completed in 1ms
17 timing config:load:setEnvs Completed in 0ms
18 timing config:load Completed in 5ms
19 verbose npm-session 20464621194c937e
20 timing npm:load Completed in 9ms
21 timing arborist:ctor Completed in 1ms
22 timing idealTree:init Completed in 5ms
23 timing idealTree:userRequests Completed in 1ms
24 silly idealTree buildDeps
25 silly fetch manifest pyright@*
26 http fetch GET 304 https://registry.npmjs.org/pyright 125ms (from cache)
27 silly placeDep ROOT [email protected] OK for:  want: *
28 timing idealTree:#root Completed in 132ms
29 timing idealTree:node_modules/pyright Completed in 0ms
30 timing idealTree:buildDeps Completed in 133ms
31 timing idealTree:fixDepFlags Completed in 0ms
32 timing idealTree Completed in 140ms
33 timing command:install Completed in 142ms
34 verbose stack Error: ENOENT: no such file or directory, lstat '/Users/nw_henderson/github.com/nwh/emacs.d/.cache'
35 verbose cwd /Users/nw_henderson/.npm/_logs
36 verbose Darwin 20.2.0
37 verbose argv "/opt/brew/Cellar/node/15.5.1/bin/node" "/opt/brew/bin/npm" "-g" "--prefix" "/Users/nw_henderson/github.com/nwh/emacs.d/.cache/lsp/npm/pyright" "install" "pyright"
38 verbose node v15.5.1
39 verbose npm  v7.3.0
40 error code ENOENT
41 error syscall lstat
42 error path /Users/nw_henderson/github.com/nwh/emacs.d/.cache
43 error errno -2
44 error enoent ENOENT: no such file or directory, lstat '/Users/nw_henderson/github.com/nwh/emacs.d/.cache'
45 error enoent This is related to npm not being able to find a file.
46 verbose exit -2

[nwh]

macOS/brew work around is to brew install node@14 and ensure that npm v6 is available on PATH. See brew info node@14.