Python .yml不会在专用环境中安装来自.requirements.txt的软件包

我有以下内容，可以在刚刚创建的环境Env_Name中安装来自requirements.txt的包

- script: |
    python -m venv Env_Name
    cd Env_Name
    .\scripts\Activate
  displayName: 'Create & Activate Env_Name '

- script: |
    python -m pip install --upgrade pip
  displayName: 'Install dependencies'

- script: |
    pip install wheel
  displayName: 'Wheel install' 

- script: |
    pip install python_ldap-3.4.0-cp311-cp311-win_amd64.whl
  displayName: 'Install ldap from wheel' 

- script: |
    type requirements.txt
  displayName: 'display the content of the requirements file'

- script: |
    pip install -r requirements.txt -v
  displayName: 'packages installation'

- script: |
    pip list
  displayName: 'Display packages'

- script: |
    python setup.py sdist
  displayName: 'Artifact creation'

- task: CopyFiles@2
  inputs:
    targetFolder: $(Build.ArtifactStagingDirectory)

- task: PublishBuildArtifacts@1
  inputs:
    PathtoPublish: '$(Build.ArtifactStagingDirectory)'
    ArtifactName: 'My_App'
    publishLocation: 'Container'

显示程序包确实显示程序包已安装:

pip list
========================== Starting Command Output ===========================
"C:\Windows\system32\cmd.exe" /D /E:ON /V:OFF /S /C "CALL "D:\a\_temp\f53d2436-67e2-4d6f-bf00-e90e1dfcb18c.cmd""
Package              Version
-------------------- ------------
asgiref              3.7.2
beautifulsoup4       4.12.2
certifi              2023.7.22
cffi                 1.15.1
charset-normalizer   3.2.0
contourpy            1.1.1
cryptography         41.0.3
cx_Oracle            8.3.0
cycler               0.11.0
Django               4.2.5
django-adminlte3     0.1.6
django-auth-ldap     4.6.0
django-mssql-backend 2.8.1
et-xmlfile           1.1.0
fonttools            4.42.1
idna                 3.4
joblib               1.3.2
kiwisolver           1.4.5
lxml                 4.9.3

但查看env文件夹，我只能在Site-Packages中看到:

正如我们所看到的，我们没有来自Requirements s.txt的包.所以问题是:

所有这些包都安装在哪里？有没有脚本可以用来显示它们所在的文件夹的路径？

我如何在Env_Name中安装它们？