Python 无法执行 powershell 脚本

Question

我一直在尝试从我的主要 python 程序中执行一个 powershell 脚本。该脚本已经过测试，可直接通过 powershell 运行。然而，当我启动一个进程以在 python 中执行它时，情况并非如此。

我尝试了多种方法，确保 powershell 没有限制我的执行策略（不受限制）。我也尝试了一个批处理文件，但是当我使用 python 执行批处理文件时它出错了

com = os.path.join( ".", 'test2.ps1 -in "C:','Users','kbrab','Desktop','Test','test.csv" -out "C:','Users','kbrab','Desktop','Test','OSReport.xlsx"')
print(com)
p = subprocess.Popen(['powershell.exe', '-ExecutionPolicy', 'unrestricted',
              com],stderr=subprocess.PIPE)
out = p.communicate()
print(out)

com 字符串具有正确的路径，并按如下方式打印：

.\test2.ps1 -in "C:\Users\kbrab\Desktop\Test\test.csv" -out "C:\Users\kbrab\Desktop\Test\OSReport.xlsx"

想我还会添加 powershell 脚本：

param([string]$in = "in", [string]$out = "out")
Import-Module ImportExcel
Write-Host "Arg: $in"
Write-Host "Arg: $out"

Import-CSV $in | Export-Excel $out `
    -IncludePivotTable `
    -PivotRows 'BName' `
    -PivotData @{'MEMBERNBR'='count'}

错误信息是：

(None, b"Export-Excel : The term 'Export-Excel' is not recognized as the name of a 
cmdlet, function, script file, or operable program. Check the spelling of the 
name, or if a path was included, verify that the path is correct and try again.
At C:\Users\kbrab\Desktop\Test\test2.ps1:5 char:18
+ Import-CSV $in | Export-Excel $out `
+ ~~~~~~~~~~~~
 + CategoryInfo : ObjectNotFound: (Export-Excel:String) [], CommandNotFoundException
 + FullyQualifiedErrorId : CommandNotFoundException")

powershell 脚本自己导入一个 csv 然后导出一个数据透视表，直接通过 powershell 执行时它可以正常工作。

非常感谢任何帮助，谢谢

更新 1

将导入添加到 powershell 脚本后的第二个错误

(None, b"Import-Module : The specified module 'ImportExcel' was not loaded because no 
valid module file was found in any module directory.
At C:\Users\kbrab\Desktop\Test\test2.ps1:2 char:1
+ Import-Module ImportExcel
+ ~~~~~~~~~~~~~~~~~~~~~~~~~
 + CategoryInfo : ResourceUnavailable: (ImportExcel:String) [Import-Module], FileNotFoundException
 + FullyQualifiedErrorId : Modules_ModuleNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

Export-Excel : The term 'Export-Excel' is not recognized as the name of a 
cmdlet, function, script file, or operable program. Check the spelling of the 
name, or if a path was included, verify that the path is correct and try again.
At C:\Users\kbrab\Desktop\Test\test2.ps1:6 char:18
+ Import-CSV $in | Export-Excel $out `
+ ~~~~~~~~~~~~
 + CategoryInfo : ObjectNotFound: (Export-Excel:String) [], CommandNotFoundException
 + FullyQualifiedErrorId : CommandNotFoundException")

仅在 powershell 上测试，仍然有效

Answer 1

Export-Excel 是来自 ImportExcel powershell 模块的 cmdlet。错误消息显示它没有找到它，因此它似乎正在正确执行 Powershell 脚本，但 Powershell 脚本没有导入该模块并且没有找到 cmdlet。

确保 Import-Module ImportExcel 位于 PowerShell 脚本的顶部。