在這里，我試圖在 Windows 上讀取常規幫助 cmd 的輸出，但出現錯誤subprocess.CalledProcessError: Command 'help' ` returned non-zero exit status 1 有什么辦法可以解決這個問題嗎
使用相同的命令，如果我嘗試使用systeminfo關鍵字我得到輸出，為什么它回傳systeminfo的值而不是cmd關鍵字的值
import subprocess
calling_output = subprocess.check_output(
"help", shell=True, stderr=subprocess.STDOUT)
print (calling_output)
預期產出
For more information on a specific command, type HELP command-name
ASSOC Displays or modifies file extension associations.
ATTRIB Displays or changes file attributes.
BREAK Sets or clears extended CTRL C checking.
BCDEDIT Sets properties in boot database to control boot loading.
CACLS Displays or modifies access control lists (ACLs) of files.
CALL Calls one batch program from another.
CD Displays the name of or changes the current directory.
CHCP Displays or sets the active code page number.
CHDIR Displays the name of or changes the current directory.
CHKDSK Checks a disk and displays a status report.
CHKNTFS Displays or modifies the checking of disk at boot time.
CLS Clears the screen.
CMD Starts a new instance of the Windows command interpreter.
COLOR Sets the default console foreground and background colors.
COMP Compares the contents of two files or sets of files.
COMPACT Displays or alters the compression of files on NTFS partitions.
CONVERT Converts FAT volumes to NTFS. You cannot convert the
current drive.
COPY Copies one or more files to another location.
DATE Displays or sets the date.
DEL Deletes one or more files.
DIR Displays a list of files and subdirectories in a directory.
DISKPART Displays or configures Disk Partition properties.
DOSKEY Edits command lines, recalls Windows commands, and
creates macros.
DRIVERQUERY Displays current device driver status and properties.
ECHO Displays messages, or turns command echoing on or off.
ENDLOCAL Ends localization of environment changes in a batch file.
ERASE Deletes one or more files.
EXIT Quits the CMD.EXE program (command interpreter).
FC Compares two files or sets of files, and displays the
differences between them.
FIND Searches for a text string in a file or files.
FINDSTR Searches for strings in files.
FOR Runs a specified command for each file in a set of files.
FORMAT Formats a disk for use with Windows.
FSUTIL Displays or configures the file system properties.
FTYPE Displays or modifies file types used in file extension
associations.
GOTO Directs the Windows command interpreter to a labeled line in
a batch program.
GPRESULT Displays Group Policy information for machine or user.
GRAFTABL Enables Windows to display an extended character set in
graphics mode.
HELP Provides Help information for Windows commands.
ICACLS Display, modify, backup, or restore ACLs for files and
directories.
IF Performs conditional processing in batch programs.
LABEL Creates, changes, or deletes the volume label of a disk.
MD Creates a directory.
MKDIR Creates a directory.
MKLINK Creates Symbolic Links and Hard Links
MODE Configures a system device.
MORE Displays output one screen at a time.
MOVE Moves one or more files from one directory to another
directory.
OPENFILES Displays files opened by remote users for a file share.
PATH Displays or sets a search path for executable files.
PAUSE Suspends processing of a batch file and displays a message.
POPD Restores the previous value of the current directory saved by
PUSHD.
PRINT Prints a text file.
PROMPT Changes the Windows command prompt.
PUSHD Saves the current directory then changes it.
RD Removes a directory.
RECOVER Recovers readable information from a bad or defective disk.
REM Records comments (remarks) in batch files or CONFIG.SYS.
REN Renames a file or files.
RENAME Renames a file or files.
REPLACE Replaces files.
RMDIR Removes a directory.
ROBOCOPY Advanced utility to copy files and directory trees
SET Displays, sets, or removes Windows environment variables.
SETLOCAL Begins localization of environment changes in a batch file.
SC Displays or configures services (background processes).
SCHTASKS Schedules commands and programs to run on a computer.
SHIFT Shifts the position of replaceable parameters in batch files.
SHUTDOWN Allows proper local or remote shutdown of machine.
SORT Sorts input.
START Starts a separate window to run a specified program or command.
SUBST Associates a path with a drive letter.
SYSTEMINFO Displays machine specific properties and configuration.
TASKLIST Displays all currently running tasks including services.
TASKKILL Kill or stop a running process or application.
TIME Displays or sets the system time.
TITLE Sets the window title for a CMD.EXE session.
TREE Graphically displays the directory structure of a drive or
path.
TYPE Displays the contents of a text file.
VER Displays the Windows version.
VERIFY Tells Windows whether to verify that your files are written
correctly to a disk.
VOL Displays a disk volume label and serial number.
XCOPY Copies files and directory trees.
WMIC Displays WMI information inside interactive command shell.
uj5u.com熱心網友回復：
您好，根據您的要求，您可以使用 popen
data =subprocess.Popen("help", stdout=subprocess.PIPE, shell=True).stdout.read().decode("utf-8")
print(data)
它將回傳幫助和系統資訊的輸出
uj5u.com熱心網友回復：
從您的問題中，我不明白您實際上要運行什么命令，我也沒有或使用 Windows，但是我感覺您的命令正在退出并出現令您不安的錯誤。
如果commandX在macOS或Linux上失敗，正常的做法是在它之后運行第二個命令，該命令將成功，因此呼叫者不會感到不安。所以也許你可以嘗試這種技術：
commandX # this fails
commandX || true # this succeeds
我看到您正在使用shell=True并且 Windows 可以在此處執行此操作，因此您可能想要：
commandX || echo # should succeed even if commandX fails
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