macOS Sierra

Question

在macOS Sierra 10.12.6上，LD_LIBRARY_PATH，os.system()和subprocess.run()无法使用环境变量subprocess.Popen()，即使PATH可以正常使用。 Python版本为3.6.1。但是在Linux（Ubuntu 17.10）上，这个环境变量也可以正确使用。以下python脚本envv.py可以显示此问题：

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import subprocess
import os
import time

PATH = "PATH"
print(os.environ.get(PATH))
os.system("echo $" + PATH)
subprocess.run("echo $" + PATH, shell=True)
subprocess.run("/bin/echo $" + PATH, shell=True)
subprocess.run("/bin/echo $" + PATH, shell=True, env={PATH: os.environ.get(PATH)})
subprocess.run("/bin/echo $" + PATH, shell=True, env=os.environ)
subprocess.Popen("/bin/echo $" + PATH, shell=True, env=os.environ.copy())
time.sleep(2)
print('\n')

LD_LIBRARY_PATH = "LD_LIBRARY_PATH"
print(os.environ.get(LD_LIBRARY_PATH))
os.system("echo $" + LD_LIBRARY_PATH)
subprocess.run("/bin/echo $" + LD_LIBRARY_PATH, shell=True)
subprocess.run("/bin/echo $" + LD_LIBRARY_PATH, shell=True, env={LD_LIBRARY_PATH: os.environ.get(LD_LIBRARY_PATH)})
subprocess.run("/bin/echo $" + LD_LIBRARY_PATH, shell=True, env=os.environ)
subprocess.Popen("/bin/echo $" + LD_LIBRARY_PATH, shell=True, env=os.environ.copy())
time.sleep(2)
print('\n')

在macOS上，输出为

$ python3 envv.py 
/opt/alps/bin:...
/opt/alps/bin:...
/opt/alps/bin:...
/opt/alps/bin:...
/opt/alps/bin:...
/opt/alps/bin:...
/opt/alps/bin:...


/opt/alps/lib:...
$    # use $ to show blank line
$
....

在Linux上，输出是

$ python3 envv.py 
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/bin/intel64:...


/opt/intel/compilers_and_libraries_2018.1.163/linux/compiler/lib/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/compiler/lib/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/compiler/lib/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/compiler/lib/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/compiler/lib/intel64:...
/opt/intel/compilers_and_libraries_2018.1.163/linux/compiler/lib/intel64:...

有没有人有任何想法？非常感谢！

更新2018-02-07

按照@GrahamDumpleton的建议，我尝试DYLD_LIBRARY_PATH，但结果相同。测试条是

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import subprocess
import os

DYLD_LIBRARY_PATH = "DYLD_LIBRARY_PATH"
print(os.environ.get(DYLD_LIBRARY_PATH))
os.system("echo $" + DYLD_LIBRARY_PATH)
subprocess.run("/bin/echo $" + DYLD_LIBRARY_PATH, shell=True)
subprocess.run("/bin/echo $" + DYLD_LIBRARY_PATH, shell=True, env={DYLD_LIBRARY_PATH: os.environ.get(DYLD_LIBRARY_PATH)})
subprocess.run("/bin/echo $" + DYLD_LIBRARY_PATH, shell=True, env=os.environ)
subprocess.Popen("/bin/echo $" + DYLD_LIBRARY_PATH, shell=True, env=os.environ.copy())

相关输出

$ python3 envv.py
/opt/intel/compilers_and_libraries_2018.1.126/mac/compiler/lib:...
$
$
...

Answer 1

如果您将chainWebpack: (config) => { const tsRule = config.module.rule("ts"); tsRule.uses.clear(); tsRule .use("cache-loader") .loader("cache-loader") .end() .use("babel-loader") .loader("babel-loader") .end() .use("auto-inject-async-catch-loader") .loader("auto-inject-async-catch-loader") .tap(() => { return { catchCode: 'console.error(e)' } }) .end() .use("ts-loader") .loader("ts-loader") .tap(() => { return { transpileOnly: true, appendTsSuffixTo: [ '\\.vue$' ], happyPackMode: false } }) .end() } 与subprocess.Popen结合使用，则可以手动传播shell=True和LD_LIBRARY_PATH变量，如下所示：

DYLD_LIBRARY_PATH