如何从C＃向Python脚本传递双引号作为参数？

Question

My ultimate goal, is to pass a 'json string' from C# to python script.

For instance, in python script, I would like to get as sys.argv[1], something along these lines:

'{"A":"Hello", "B":"world"}'

Then, I would be able to use:

mystring = sys.argv[1]
myjson = json.loads(mystring)

I am not able to get the above. And so, I even tried just getting this:

{"A":"Hello", "B":"world"}

(so that, I could add the first and last single quotes manually in python).

Unfortunately, in either case, I am unable to pass the double quotes.

In C#, I have tried:

string myarguments = "main.py \"{\"A\":\"Hello\", \"B\":\"world\"}\"";
var myProcessStartInfo = new ProcessStartInfo(Path_OF_PYTHON_EXE);
myProcessStartInfo.RedirectStandardOutput = true;
myProcessStartInfo.Arguments = myarguments;
var myProcess = new Process();
myProcess.StartInfo = myProcessStartInfo;
myProcess.Start();

The part I am struggling with is to get the correct string myarguments that will allow the python script to receive a double quote as an argument.

With the above C# snippet, the python script:

import sys
print(str(sys.argv))
print('arg0 : ' + sys.argv[0])
print('arg1 : ' + sys.argv[1])

prints the following:

['main.py', '{A:Hello, B:world}']
arg0 : main.py
arg1 : {A:Hello, B:world}

What I really want in python, is to get from the line: print('arg1 : ' + sys.argv[1]):

arg1 : {"A":"Hello", "B":"world"}

Or even better:

arg1 : '{"A":"Hello", "B":"world"}'

I have tried many other scenarios (trying to escape double quotes in C#), but none of them gave me the correct sys.argv in python. Any help on this is very appreciated!

Answer 1

I have figured out the way:

In C#:

string myarguments = "main.py \"{\"\"A\"\":\"\"Hello\"\", \"\"B\"\":\"\"world\"\"}\" ";

In python, print(str(sys.argv)) prints:

['main.py', '{"A":"Hello","B":"world"}']