What is different of handling character code between pure Python and Django?

Hi there

I'd like to run Java code via Django.

The Java code, javaprogram use like below.

—
java javaprogram [text] [file_name]
—

text is parameter. multi-byte character is also okey.
file_name is generate file name.

So, I run the stand-alone Python program like below could run fine.
—
java_file = 'javaprogram'
file_name = 'filename'
text = 'あいうえお' #Japanese character
java_file_path = '/path/to/'
class_path = '-cp ' + java_file_path

cmd = "java {0} {1} {2} {3}".format(class_path, java_file, text, file_name)

import subprocess
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
—

But, I run same program in Django.
It couldn't work. However, if text is English, it works fine.

What is different of handling character code between pure Python and Django?
And, could you tell me how to resolve it?

Thank you.

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