Windows Character Code Errors

When the subprocess module retrieves the Windows systeminfo and decodes 'shift-jis', the environment sends an exception.
PC1 has an exception: PC2 has been fine in the past.
PC2 is fine

By the way, by changing the following parts of the source code, there will be no exceptions for PC1 and PC2.

textout=retout.decode('shift-jis') ->textout=retout.decode()

Does it depend on the contents of systeminfo (may have different character codes in each environment)?
If it happens for each environment, how should I determine the cause? (There was no significant difference in environment variables.)

·Windows 10 Pro
·Vscode 1.72.0
·Python 3.9.10

PC1 and PC2 are both in the above environment

UnicodeDecodeError: 'shift_jis' codec can't decode byte 0x97 in position 2475: illegal multibyte sequence

import json
import subprocess

cmd_list = ['systeminfo', '/fo', 'LIST' ]

cmdreturn=subprocess.run(
    cmd_list, check = True, stdout = subprocess.PIPE)

retcode = cmdreturn.returncode
retout = cmdreturn.stdout
# textout = retout.decode()
try:
    textout=retout.decode('shift-jis')
except Exception as:
    print(e)
    raise

text_list = textout.splitlines()


param_dict=dict()
c_key=None

for text_line in text_list:
    if not text_line.startswith(''):
        if': 'in text_line:
            key_word=text_line.split(':',maxsplit=1)
            if key_word[1].startswith(''):
                key_word[1] = key_word[1].lstrip()
            param_dict.setdefault(key_word[0], key_word[1])
            c_key=key_word[0]
    else:
        temp=text_line.lstrip()
        if'\t'intemp:
            temp=temp.split('\t')
            temp='.join(temp)
        ifc_key in param_dict:
            c_data=param_dict [c_key]
            if isinstance(c_data,list):
                set_list=c_data
                set_list.append(temp)
                pass
            else:
                set_list = [c_data, temp]
                param_dict [c_key] = set_list
else:
    ret_dump=json.dumps(param_dict,indent=2,ensure_ascii=False)

print(ret_dump)

python python3 windows character-code

2022-10-12 01:01

1 Answers

Of course, there are other things besides ShiftJIS/CP932 outside of the Japanese language environment, and there are also cases where Windows 10 and later have UTF-8/CP65001.
How about checking Python version, Windows code page settings, environment variables such as PYTHONIOENCODING and PYTHONUTF8?

2022-10-12 01:01

If you have any answers or tips

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