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我測試的MAC scons的行爲,我試過「導入OS」從環境變量來構建,像這樣:scons「import os」沒有導入我的OS環境變量?
$cat SConstruct
import os
env=Environment(ENV=os.environ)
kkk=env['MY']
然後我試圖運行它,似乎仍是環境變量沒有進口通過 「ENV =環境(ENV = os.environ)」 語句
$export MY='haha'
$/usr/local/bin/scons
scons: Reading SConscript files ...
KeyError: 'MY':
File "/Users/my/SConstruct", line 3:
kkk=env['MY']
File "/usr/local/Cellar/scons/2.5.1/libexec/scons-local/SCons/Environment.py", line 410:
return self._dict[key]
我使用scons的版本:
$/usr/local/bin/scons -v
SCons by Steven Knight et al.:
script: v2.5.1.rel_2.5.1:3735:9dc6cee5c168[MODIFIED], 2016/11/03 14:02:02, by bdbaddog on mongodog
engine: v2.5.1.rel_2.5.1:3735:9dc6cee5c168[MODIFIED], 2016/11/03 14:02:02, by bdbaddog on mongodog
engine path: ['/usr/local/Cellar/scons/2.5.1/libexec/scons-local/SCons']
Copyright (c) 2001 - 2016 The SCons Foundation
我從哪裏得到錯誤,如何解決呢?