方法一：pip3 install web3
错误提示如下：
ERROR: Could not find a version that satisfies the requirement ipfshttpclient==0.7.0a1 (from web3) (from versions: 0.4.10, 0.4.11, 0.4.12, 0.4.13, 0.4.13.1, 0.4.13.2, 0.6.0, 0.6.0.post1, 0.6.1)
ERROR: No matching distribution found for ipfshttpclient==0.7.0a1 (from web3)

方法二：npm install web3

bufferutil@4.0.2 install /Users/priest/node_modules/bufferutil
node-gyp-build

xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

Traceback (most recent call last):
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/gyp_main.py", line 16, in
sys.exit(gyp.script_main())
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 545, in script_main
return main(sys.argv[1:])
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 538, in main
return gyp_main(args)
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 523, in gyp_main
generator.GenerateOutput(flat_list, targets, data, params)
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py", line 2170, in GenerateOutput
part_of_all=qualified_target in needed_targets)
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py", line 795, in Write
self.Pchify))
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py", line 1190, in WriteSources
cflags = self.xcode_settings.GetCflags(configname)
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 551, in GetCflags
archs = self.GetActiveArchs(self.configname)
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 420, in GetActiveArchs
xcode_archs_default = GetXcodeArchsDefault()
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 118, in GetXcodeArchsDefault
xcode_version, _ = XcodeVersion()
File "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 1265, in XcodeVersion
version = re.match(r'(\d.\d.?\d*)', version).groups()[0]
AttributeError: 'NoneType' object has no attribute 'groups'
gyp ERR! configure error
gyp ERR! stack Error: gyp failed with exit code: 1
gyp ERR! stack at ChildProcess.onCpExit (/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:336:16)
gyp ERR! stack at emitTwo (events.js:125:13)
gyp ERR! stack at ChildProcess.emit (events.js:213:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
gyp ERR! System Darwin 18.2.0
gyp ERR! command "/Users/priest/.nvm/versions/node/v8.5.0/bin/node" "/Users/priest/.nvm/versions/node/v8.5.0/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/priest/node_modules/bufferutil
gyp ERR! node -v v8.5.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
npm WARN enoent ENOENT: no such file or directory, open '/Users/priest/package.json'
npm WARN priest No description
npm WARN priest No repository field.
npm WARN priest No README data
npm WARN priest No license field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bufferutil@4.0.2 install: node-gyp-build
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bufferutil@4.0.2 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /Users/priest/.npm/_logs/2020-11-26T13_26_43_138Z-debug.log

求高手解答。
我在2017版mac下没有任何问题
现在换到一台2014版的mac就出现以上问题。