在批处理和 python 脚本中读/写相同的变量

Question

我有 2 个脚本。一个是 .bat，另一个是 python。 python 脚本由 .bat 文件触发。执行时，首先我将使用命令行参数运行 .bat，然后我需要将参数读入 python 脚本。

我做错了什么？

我这样调用批处理脚本：

C:>main.bat c:\temp\text1.txt

main.bat：

@ECHO off
set var1=%~1
call python_script.bat 
echo "returned to main"
pause

python_script.bat：

python -x %0 %*

print var1        # Notworking

import sys
var1 = sys.argv  ############  Also not working

with open(var1, 'r+') as f:
content = f.read()
f.seek(0)
f.trunca........

Answer 1

我不太了解 bat 和 windows，但是 windows 不支持从 bat 文件中调用带有命令行参数的 python 脚本吗？如果是这样，这样的事情不会起作用吗？

这适用于 Linux shell：

call_py.sh：

# do stuff with command line argument 1 here ($1) and pass it on to py
echo "I'm a shell script and i received this cmd line arg: " $1
# pass $1 on to python as a cmd line arg here
python some_script.py $1
echo "shell script still running after python script finished"

The other question I linked to 向我们展示了如何从 bat 调用 python（虽然我无法验证）。你不能像我在 call_py.sh 中那样在 py 脚本的名称后简单地添加 var1 吗？

# syntax might be wrong
start C:\python27\python.exe D:\py\some_script.py var1

some_script.py 然后接收 $1/var1 作为sys.argv[1]

some_script.py：

import sys

print "I'm a python script called " + sys.argv[0]
print "I received this cmd line arg from shell: " + sys.argv[1]

输出：

$ sh call_py.sh "VARIABLE_GIVEN_TO_SHELL_AND_PASSED_TO_PY"
I'm a shell script and i received this cmd line arg:  VARIABLE_GIVEN_TO_SHELL_AND_PASSED_TO_PY
I'm a python script called some_script.py
I received this cmd line arg from shell VARIABLE_GIVEN_TO_SHELL_AND_PASSED_TO_PY
shell script still running after python script finished

这行得通还是 Windows 比我想象的更奇怪？ :)

更新：

我启动了旧的恶意软件磁铁并尝试从命令行 -> 批处理脚本 -> python 传递参数。我没有使用您的 python -x %0 %* 语法，它似乎允许在批处理脚本中运行 python 代码，而是简单地编写了一个单独的 .py 文件并从 .bat 文件中调用它。

这适用于 Windows 7：

call_py.bat：

@ECHO off

set var1=%~1
echo Bat script called with cmdline arg: "%var1%"
echo Passing cmdline arg to python script
call C:\Python27\python.exe C:\Users\bob\Desktop\print_arg1.py %var1%
echo Bat again - continuing...
pause

print_arg1.py：

import sys

try:
    print "Python says hi and received this cmdline arg: " + sys.argv[1]
except IndexError:
    print "Python says hi but didn't receive any cmdline args :("

输出：

C:\Users\bob\Desktop>call_py.bat I_AM_A_CMDLINE_ARG
Bat script called with cmdline arg: "I_AM_A_CMDLINE_ARG"
Passing cmdline arg to python script
Python says hi and received this cmdline arg: I_AM_A_CMDLINE_ARG
Bat again - continuing...
Press any key to continue . . .