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Several cmd.exe windows spawned when running virtualenv on Windows #1928

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uranusjr opened this issue Aug 23, 2020 · 11 comments · Fixed by #1929
Closed

Several cmd.exe windows spawned when running virtualenv on Windows #1928

uranusjr opened this issue Aug 23, 2020 · 11 comments · Fixed by #1929
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@uranusjr
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uranusjr commented Aug 23, 2020

Issue

When virtualenv is run for the first time, multiple extra cmd.exe windows appear on the screen for a while.

This is probably easier to explain with a screencast: https://d.pr/v/yQMzXY

I assume those are used to check setuptools, pip, and wheel updates.

Environment

Provide at least:

  • OS: Windows

  • pip list of the host python where virtualenv is installed:

    Package    Version
    ---------- -------
    appdirs    1.4.3
    distlib    0.3.1
    filelock   3.0.12
    pip        20.2.2
    setuptools 49.6.0
    six        1.14.0
    virtualenv 20.0.31
    wheel      0.35.1
    

Output of the virtual environment creation

Make sure to run the creation with -vvv --with-traceback:

152 setup logging to NOTSET [DEBUG report:43]
152 created app data folder C:\Users\uranusjr\AppData\Local\pypa\virtualenv [DEBUG __init__:30]
166 find interpreter for spec PythonSpec(path=c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\scripts\python.exe) [INFO builtin:44]
169 Attempting to acquire lock 1542576898112 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\py_info\1\ea7bf2eee3ed67557d64b592a1f73b5ed2dd9edb961e1fbe933fe0503584d4fe.lock [DEBUG filelock:270]
171 Lock 1542576898112 acquired on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\py_info\1\ea7bf2eee3ed67557d64b592a1f73b5ed2dd9edb961e1fbe933fe0503584d4fe.lock [INFO filelock:274]
171 get interpreter info via cmd: 'C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe' 'c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\lib\site-packages\virtualenv\discovery\py_info.py' [DEBUG cached_py_info:87]
322 wrote python info of C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe at C:\Users\uranusjr\AppData\Local\pypa\virtualenv\py_info\1\ea7bf2eee3ed67557d64b592a1f73b5ed2dd9edb961e1fbe933fe0503584d4fe.json [DEBUG via_disk_folder:159]
322 Attempting to release lock 1542576898112 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\py_info\1\ea7bf2eee3ed67557d64b592a1f73b5ed2dd9edb961e1fbe933fe0503584d4fe.lock [DEBUG filelock:315]
323 Lock 1542576898112 released on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\py_info\1\ea7bf2eee3ed67557d64b592a1f73b5ed2dd9edb961e1fbe933fe0503584d4fe.lock [INFO filelock:318]
323 proposed PythonInfo(spec=CPython3.8.1.final.0-64, system=C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe, exe=c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\scripts\python.exe, platform=win32, version='3.8.1 (tags/v3.8.1:1b293b6, Dec 18 2019, 23:11:46) [MSC v.1916 64 bit (AMD64)]', encoding_fs_io=utf-8-cp1252) [INFO builtin:50]
323 accepted PythonInfo(spec=CPython3.8.1.final.0-64, system=C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe, exe=c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\scripts\python.exe, platform=win32, version='3.8.1 (tags/v3.8.1:1b293b6, Dec 18 2019, 23:11:46) [MSC v.1916 64 bit (AMD64)]', encoding_fs_io=utf-8-cp1252) [DEBUG builtin:52]
331 symlink on filesystem does not work [DEBUG info:47]
331 filesystem is not case-sensitive [DEBUG info:28]
424 create virtual environment via CPython3Windows(dest=C:\Users\uranusjr\test, clear=False, global=False) [INFO session:52]
425 write C:\Users\uranusjr\test\pyvenv.cfg [DEBUG pyenv_cfg:34]
425     home = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38 [DEBUG pyenv_cfg:38]
425     implementation = CPython [DEBUG pyenv_cfg:38]
425     version_info = 3.8.1.final.0 [DEBUG pyenv_cfg:38]
425     virtualenv = 20.0.31 [DEBUG pyenv_cfg:38]
426     include-system-site-packages = false [DEBUG pyenv_cfg:38]
426     base-prefix = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38 [DEBUG pyenv_cfg:38]
426     base-exec-prefix = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38 [DEBUG pyenv_cfg:38]
426     base-executable = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe [DEBUG pyenv_cfg:38]
427 remove file C:\Users\uranusjr\test\Scripts\python.exe [DEBUG _sync:38]
428 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe to C:\Users\uranusjr\test\Scripts\python.exe [DEBUG _sync:52]
430 remove file C:\Users\uranusjr\test\Scripts\pythonw.exe [DEBUG _sync:38]
431 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\pythonw.exe to C:\Users\uranusjr\test\Scripts\pythonw.exe [DEBUG _sync:52]
433 remove file C:\Users\uranusjr\test\Scripts\python3.dll [DEBUG _sync:38]
434 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python3.dll to C:\Users\uranusjr\test\Scripts\python3.dll [DEBUG _sync:52]
436 remove file C:\Users\uranusjr\test\Scripts\python38.dll [DEBUG _sync:38]
439 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python38.dll to C:\Users\uranusjr\test\Scripts\python38.dll [DEBUG _sync:52]
445 remove file C:\Users\uranusjr\test\Scripts\vcruntime140.dll [DEBUG _sync:38]
445 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\vcruntime140.dll to C:\Users\uranusjr\test\Scripts\vcruntime140.dll [DEBUG _sync:52]
447 remove file C:\Users\uranusjr\test\Scripts\libcrypto-1_1.dll [DEBUG _sync:38]
448 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\libcrypto-1_1.dll to C:\Users\uranusjr\test\Scripts\libcrypto-1_1.dll [DEBUG _sync:52]
452 remove file C:\Users\uranusjr\test\Scripts\libffi-7.dll [DEBUG _sync:38]
452 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\libffi-7.dll to C:\Users\uranusjr\test\Scripts\libffi-7.dll [DEBUG _sync:52]
455 remove file C:\Users\uranusjr\test\Scripts\libssl-1_1.dll [DEBUG _sync:38]
456 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\libssl-1_1.dll to C:\Users\uranusjr\test\Scripts\libssl-1_1.dll [DEBUG _sync:52]
460 remove file C:\Users\uranusjr\test\Scripts\pyexpat.pyd [DEBUG _sync:38]
460 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\pyexpat.pyd to C:\Users\uranusjr\test\Scripts\pyexpat.pyd [DEBUG _sync:52]
462 remove file C:\Users\uranusjr\test\Scripts\select.pyd [DEBUG _sync:38]
463 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\select.pyd to C:\Users\uranusjr\test\Scripts\select.pyd [DEBUG _sync:52]
465 remove file C:\Users\uranusjr\test\Scripts\sqlite3.dll [DEBUG _sync:38]
466 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\sqlite3.dll to C:\Users\uranusjr\test\Scripts\sqlite3.dll [DEBUG _sync:52]
470 remove file C:\Users\uranusjr\test\Scripts\tcl86t.dll [DEBUG _sync:38]
471 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\tcl86t.dll to C:\Users\uranusjr\test\Scripts\tcl86t.dll [DEBUG _sync:52]
474 remove file C:\Users\uranusjr\test\Scripts\tk86t.dll [DEBUG _sync:38]
475 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\tk86t.dll to C:\Users\uranusjr\test\Scripts\tk86t.dll [DEBUG _sync:52]
479 remove file C:\Users\uranusjr\test\Scripts\unicodedata.pyd [DEBUG _sync:38]
480 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\unicodedata.pyd to C:\Users\uranusjr\test\Scripts\unicodedata.pyd [DEBUG _sync:52]
484 remove file C:\Users\uranusjr\test\Scripts\winsound.pyd [DEBUG _sync:38]
484 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\winsound.pyd to C:\Users\uranusjr\test\Scripts\winsound.pyd [DEBUG _sync:52]
486 remove file C:\Users\uranusjr\test\Scripts\_asyncio.pyd [DEBUG _sync:38]
487 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_asyncio.pyd to C:\Users\uranusjr\test\Scripts\_asyncio.pyd [DEBUG _sync:52]
489 remove file C:\Users\uranusjr\test\Scripts\_bz2.pyd [DEBUG _sync:38]
490 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_bz2.pyd to C:\Users\uranusjr\test\Scripts\_bz2.pyd [DEBUG _sync:52]
492 remove file C:\Users\uranusjr\test\Scripts\_ctypes.pyd [DEBUG _sync:38]
492 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_ctypes.pyd to C:\Users\uranusjr\test\Scripts\_ctypes.pyd [DEBUG _sync:52]
494 remove file C:\Users\uranusjr\test\Scripts\_decimal.pyd [DEBUG _sync:38]
495 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_decimal.pyd to C:\Users\uranusjr\test\Scripts\_decimal.pyd [DEBUG _sync:52]
497 remove file C:\Users\uranusjr\test\Scripts\_elementtree.pyd [DEBUG _sync:38]
498 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_elementtree.pyd to C:\Users\uranusjr\test\Scripts\_elementtree.pyd [DEBUG _sync:52]
500 remove file C:\Users\uranusjr\test\Scripts\_hashlib.pyd [DEBUG _sync:38]
502 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_hashlib.pyd to C:\Users\uranusjr\test\Scripts\_hashlib.pyd [DEBUG _sync:52]
504 remove file C:\Users\uranusjr\test\Scripts\_lzma.pyd [DEBUG _sync:38]
505 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_lzma.pyd to C:\Users\uranusjr\test\Scripts\_lzma.pyd [DEBUG _sync:52]
510 remove file C:\Users\uranusjr\test\Scripts\_msi.pyd [DEBUG _sync:38]
511 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_msi.pyd to C:\Users\uranusjr\test\Scripts\_msi.pyd [DEBUG _sync:52]
515 remove file C:\Users\uranusjr\test\Scripts\_multiprocessing.pyd [DEBUG _sync:38]
516 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_multiprocessing.pyd to C:\Users\uranusjr\test\Scripts\_multiprocessing.pyd [DEBUG _sync:52]
518 remove file C:\Users\uranusjr\test\Scripts\_overlapped.pyd [DEBUG _sync:38]
518 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_overlapped.pyd to C:\Users\uranusjr\test\Scripts\_overlapped.pyd [DEBUG _sync:52]
521 remove file C:\Users\uranusjr\test\Scripts\_queue.pyd [DEBUG _sync:38]
522 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_queue.pyd to C:\Users\uranusjr\test\Scripts\_queue.pyd [DEBUG _sync:52]
524 remove file C:\Users\uranusjr\test\Scripts\_socket.pyd [DEBUG _sync:38]
525 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_socket.pyd to C:\Users\uranusjr\test\Scripts\_socket.pyd [DEBUG _sync:52]
528 remove file C:\Users\uranusjr\test\Scripts\_sqlite3.pyd [DEBUG _sync:38]
528 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_sqlite3.pyd to C:\Users\uranusjr\test\Scripts\_sqlite3.pyd [DEBUG _sync:52]
530 remove file C:\Users\uranusjr\test\Scripts\_ssl.pyd [DEBUG _sync:38]
531 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_ssl.pyd to C:\Users\uranusjr\test\Scripts\_ssl.pyd [DEBUG _sync:52]
533 remove file C:\Users\uranusjr\test\Scripts\_tkinter.pyd [DEBUG _sync:38]
534 copy C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\DLLs\_tkinter.pyd to C:\Users\uranusjr\test\Scripts\_tkinter.pyd [DEBUG _sync:52]
536 create virtualenv import hook file C:\Users\uranusjr\test\Lib\site-packages\_virtualenv.pth [DEBUG api:94]
537 create C:\Users\uranusjr\test\Lib\site-packages\_virtualenv.py [DEBUG api:97]
538 ============================== target debug ============================== [DEBUG session:54]
538 debug via 'C:\Users\uranusjr\test\Scripts\python.exe' 'c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\lib\site-packages\virtualenv\create\debug.py' [DEBUG creator:209]
538 {
  "sys": {
    "executable": "C:\\Users\\uranusjr\\test\\Scripts\\python.exe",
    "_base_executable": "C:\\Users\\uranusjr\\test\\Scripts\\python.exe",
    "prefix": "C:\\Users\\uranusjr\\test",
    "base_prefix": "C:\\Users\\uranusjr\\AppData\\Local\\Programs\\Python\\Python38",
    "real_prefix": null,
    "exec_prefix": "C:\\Users\\uranusjr\\test",
    "base_exec_prefix": "C:\\Users\\uranusjr\\AppData\\Local\\Programs\\Python\\Python38",
    "path": [
      "C:\\Users\\uranusjr\\test\\Scripts\\python38.zip",
      "C:\\Users\\uranusjr\\AppData\\Local\\Programs\\Python\\Python38\\DLLs",
      "C:\\Users\\uranusjr\\AppData\\Local\\Programs\\Python\\Python38\\lib",
      "C:\\Users\\uranusjr\\AppData\\Local\\Programs\\Python\\Python38",
      "C:\\Users\\uranusjr\\test",
      "C:\\Users\\uranusjr\\test\\lib\\site-packages"
    ],
    "meta_path": [
      "<class '_virtualenv._Finder'>",
      "<class '_frozen_importlib.BuiltinImporter'>",
      "<class '_frozen_importlib.FrozenImporter'>",
      "<class '_frozen_importlib_external.PathFinder'>"
    ],
    "fs_encoding": "utf-8",
    "io_encoding": "cp1252"
  },
  "version": "3.8.1 (tags/v3.8.1:1b293b6, Dec 18 2019, 23:11:46) [MSC v.1916 64 bit (AMD64)]",
  "makefile_filename": "C:\\Users\\uranusjr\\AppData\\Local\\Programs\\Python\\Python38\\Lib\\config\\Makefile",
  "os": "<module 'os' from 'C:\\\\Users\\\\uranusjr\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python38\\\\lib\\\\os.py'>",
  "site": "<module 'site' from 'C:\\\\Users\\\\uranusjr\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python38\\\\lib\\\\site.py'>",
  "datetime": "<module 'datetime' from 'C:\\\\Users\\\\uranusjr\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python38\\\\lib\\\\datetime.py'>",
  "math": "<module 'math' (built-in)>",
  "json": "<module 'json' from 'C:\\\\Users\\\\uranusjr\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python38\\\\lib\\\\json\\\\__init__.py'>"
} [DEBUG session:55]
760 add seed packages via FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=C:\Users\uranusjr\AppData\Local\pypa\virtualenv) [INFO session:59]
766 wrote embed update of distribution setuptools at C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\embed\1\setuptools.json [DEBUG via_disk_folder:159]
766 wrote embed update of distribution pip at C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\embed\1\pip.json [DEBUG via_disk_folder:159]
767 wrote embed update of distribution wheel at C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\embed\1\wheel.json [DEBUG via_disk_folder:159]
770 triggered periodic upgrade of setuptools==49.6.0 (for python 3.8) via background process having PID 13968 [INFO periodic_update:191]
771 triggered periodic upgrade of pip==20.2.2 (for python 3.8) via background process having PID 2760 [INFO periodic_update:191]
773 triggered periodic upgrade of wheel==0.35.1 (for python 3.8) via background process having PID 10656 [INFO periodic_update:191]
788 got embed update of distribution setuptools from C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\embed\1\setuptools.json [DEBUG via_disk_folder:133]
789 got embed update of distribution pip from C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\embed\1\pip.json [DEBUG via_disk_folder:133]
789 got embed update of distribution wheel from C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\embed\1\wheel.json [DEBUG via_disk_folder:133]
799 install setuptools from wheel c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\lib\site-packages\virtualenv\seed\wheels\embed\setuptools-49.6.0-py3-none-any.whl via CopyPipInstall [DEBUG via_app_data:53]
800 install pip from wheel c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\lib\site-packages\virtualenv\seed\wheels\embed\pip-20.2.2-py2.py3-none-any.whl via CopyPipInstall [DEBUG via_app_data:53]
801 install wheel from wheel c:\users\uranusjr\appdata\local\programs\pipx\venvs\virtualenv\lib\site-packages\virtualenv\seed\wheels\embed\wheel-0.35.1-py2.py3-none-any.whl via CopyPipInstall [DEBUG via_app_data:53]
802 Attempting to acquire lock 1542583620752 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any.lock [DEBUG filelock:270]
802 Attempting to acquire lock 1542583621184 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any.lock [DEBUG filelock:270]
803 Attempting to acquire lock 1542583621424 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any.lock [DEBUG filelock:270]
803 Lock 1542583620752 acquired on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any.lock [INFO filelock:274]
804 Lock 1542583621184 acquired on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any.lock [INFO filelock:274]
805 build install image for setuptools-49.6.0-py3-none-any.whl to C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any [DEBUG base:52]
805 Lock 1542583621424 acquired on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any.lock [INFO filelock:274]
805 build install image for pip-20.2.2-py2.py3-none-any.whl to C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any [DEBUG base:52]
809 build install image for wheel-0.35.1-py2.py3-none-any.whl to C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any [DEBUG base:52]
929 Attempting to release lock 1542583621424 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any.lock [DEBUG filelock:315]
932 Lock 1542583621424 released on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any.lock [INFO filelock:318]
942 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any\wheel to C:\Users\uranusjr\test\Lib\site-packages\wheel [DEBUG _sync:52]
1208 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any\wheel-0.35.1.dist-info to C:\Users\uranusjr\test\Lib\site-packages\wheel-0.35.1.dist-info [DEBUG _sync:52]
1275 Attempting to release lock 1542583620752 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any.lock [DEBUG filelock:315]
1278 Lock 1542583620752 released on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any.lock [INFO filelock:318]
1281 copy C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\distutils-precedence.pth to C:\Users\uranusjr\test\Lib\site-packages\distutils-precedence.pth [DEBUG _sync:52]
1320 copy C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\easy_install.py to C:\Users\uranusjr\test\Lib\site-packages\easy_install.py [DEBUG _sync:52]
1328 copy C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\wheel-0.35.1-py2.py3-none-any\wheel-0.35.1.virtualenv to C:\Users\uranusjr\test\Lib\site-packages\wheel-0.35.1.virtualenv [DEBUG _sync:52]
1354 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\pkg_resources to C:\Users\uranusjr\test\Lib\site-packages\pkg_resources [DEBUG _sync:52]
1354 generated console scripts wheel3.8.exe wheel3.exe wheel-3.8.exe wheel.exe [DEBUG base:48]
1625 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\setuptools to C:\Users\uranusjr\test\Lib\site-packages\setuptools [DEBUG _sync:52]
1809 Attempting to release lock 1542583621184 on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any.lock [DEBUG filelock:315]
1811 Lock 1542583621184 released on C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any.lock [INFO filelock:318]
1943 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any\pip to C:\Users\uranusjr\test\Lib\site-packages\pip [DEBUG _sync:52]
2896 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\setuptools-49.6.0.dist-info to C:\Users\uranusjr\test\Lib\site-packages\setuptools-49.6.0.dist-info [DEBUG _sync:52]
2946 copy C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\setuptools-49.6.0.virtualenv to C:\Users\uranusjr\test\Lib\site-packages\setuptools-49.6.0.virtualenv [DEBUG _sync:52]
2956 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\setuptools-49.6.0-py3-none-any\_distutils_hack to C:\Users\uranusjr\test\Lib\site-packages\_distutils_hack [DEBUG _sync:52]
2970 generated console scripts easy_install3.8.exe easy_install3.exe easy_install.exe easy_install-3.8.exe [DEBUG base:48]
4516 copy directory C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any\pip-20.2.2.dist-info to C:\Users\uranusjr\test\Lib\site-packages\pip-20.2.2.dist-info [DEBUG _sync:52]
4544 copy C:\Users\uranusjr\AppData\Local\pypa\virtualenv\wheel\3.8\image\1\CopyPipInstall\pip-20.2.2-py2.py3-none-any\pip-20.2.2.virtualenv to C:\Users\uranusjr\test\Lib\site-packages\pip-20.2.2.virtualenv [DEBUG _sync:52]
4557 generated console scripts pip3.8.exe pip.exe pip-3.8.exe pip3.exe [DEBUG base:48]
4558 add activators for Bash, Batch, Fish, PowerShell, Python, Xonsh [INFO session:64]
4564 write C:\Users\uranusjr\test\pyvenv.cfg [DEBUG pyenv_cfg:34]
4565    home = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38 [DEBUG pyenv_cfg:38]
4565    implementation = CPython [DEBUG pyenv_cfg:38]
4565    version_info = 3.8.1.final.0 [DEBUG pyenv_cfg:38]
4565    virtualenv = 20.0.31 [DEBUG pyenv_cfg:38]
4565    include-system-site-packages = false [DEBUG pyenv_cfg:38]
4566    base-prefix = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38 [DEBUG pyenv_cfg:38]
4566    base-exec-prefix = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38 [DEBUG pyenv_cfg:38]
4566    base-executable = C:\Users\uranusjr\AppData\Local\Programs\Python\Python38\python.exe [DEBUG pyenv_cfg:38]
4567 created virtual environment CPython3.8.1.final.0-64 in 4421ms
  creator CPython3Windows(dest=C:\Users\uranusjr\test, clear=False, global=False)
  seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=C:\Users\uranusjr\AppData\Local\pypa\virtualenv)
    added seed packages: pip==20.2.2, setuptools==49.6.0, wheel==0.35.1
  activators BashActivator,BatchActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator [WARNING __main__:17]
@uranusjr uranusjr added the bug label Aug 23, 2020
@gaborbernat
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gaborbernat commented Aug 23, 2020

This is true, but I'm not sure what's your proposal as alternative. This works as designed.

@gaborbernat gaborbernat removed the bug label Aug 23, 2020
@pfmoore
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pfmoore commented Aug 23, 2020

Can the windows be hidden? It's a background task, so should not pop up windows in the foreground.

@uranusjr
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uranusjr commented Aug 23, 2020

It should be possible to not show the windows. But the question is, why are there windows to show in the first place?note Normal subprocess calls use the CreateProcess API, and shouldn’t spawn a shell (which causes a window to show) at all.

note I did not read the implementation in virtualenv.

@pfmoore
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pfmoore commented Aug 23, 2020

The implementation uses DETACHED_PROCESS, and this seems to be the issue. The following simple reproducing case demonstrates the issue for me:

from subprocess import DETACHED_PROCESS, Popen
p = Popen(["py", "-c", "from time import sleep; sleep(5)"], creationflags=DETACHED_PROCESS)

The relevant virtualenv code is here.

@uranusjr
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uranusjr commented Aug 23, 2020

I can’t say I understand the myriad of process and window flags in Win32 API, but if the process must be launched detached, I believe there are flags to hide/disable the window as well.

@pfmoore
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pfmoore commented Aug 23, 2020

Trying those, they don't seem to work 🙁

It seems to be somehow related to the chain of processes involved, as using sys.executable rather than py in my sample code shows no window. Virtualenv uses sys.executable but maybe it's related to how virtualenv is called. I often use pew which calls virtualenv under the hood. That may be relevant here. @uranusjr do you run virtualenv via a wrapper?

@gaborbernat
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gaborbernat commented Aug 23, 2020

@zooba do you happen to know the magic incantation to run a detached process without a new window showing up? It's crucial that this process runs detached because the upgrade can take a long time, a lot longer than the virtual environment creation.

@uranusjr
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uranusjr commented Aug 23, 2020

@uranusjr do you run virtualenv via a wrapper?

I call virtualenv.exe installed with pipx, so yeah, there are quite some indirections involved. virtualenv.exe is a wrapper that calls the venv python.exe, which is itself a wrapper (venvlauncher.exe) to the “real” python.exe.

It's crucial that this process runs detached because the upgrade can take a long time, a lot longer than the virtual environment creation.

Makes sense, thanks for the additional context.


I’ll try some flag combinations myself as well and report back if I make any process. If all else fail, maybe it’d be doable to special-case Windows and launch pythonw.exe instead of python.exe instead?

@pfmoore
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pfmoore commented Aug 23, 2020

I've raised https://bugs.python.org/issue41619 because I think the inconsistent behaviour at least needs better explanation. I suspect that the launcher is part of the issue here - the Python 3 virtual environment mechanism uses a modified version of the launcher (although I don't know if virtualenv uses that mechanism or has its own approach). Unfortunately, the details of that mechanism are undocumented, so it's hard to know what's intended and what's accidental...

I think that even if there is a bug in Python here, virtualenv should work around it as the extra windows are not ideal. Hopefully the bug report will at least result in a more detailed explanation of what's going on here which will help us work out how to avoid them.

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gaborbernat commented Aug 23, 2020

I think that even if there is a bug in Python here, virtualenv should work around it as the extra windows are not ideal.

At this point I'm not aware that's possible for virtualenv to work around it. I'm happy to workaround if somone provides a way to work around it in a reliable way.

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pfmoore commented Aug 23, 2020

From the bpo issue, it looks like CREATE_NO_WINDOW (0x8000000) works, but it must be specified instead of DETACHED_PROCESS (in my tests, I specified both).

@pradyunsg pradyunsg added the bug label Aug 31, 2020
bmwiedemann pushed a commit to bmwiedemann/openSUSE that referenced this issue Oct 29, 2020
https://build.opensuse.org/request/show/840217
by user StevenK + dimstar_suse
- Update to 20.0.33:
  * Fix ``None`` type error in cygwin if POSIX path in dest - by :user:`danyeaw`. (`#1962 <https://github.com/pypa/virtualenv/issues/1962>`_)
  * Fix Python 3.4 incompatibilities (added back to the CI) - by :user:`gaborbernat`. (`#1963 <https://github.com/pypa/virtualenv/issues/1963>`_)
  * For activation scripts always use UNIX line endings (unless it's BATCH shell related) - by :user:`saytosid`. (`#1818 <https://github.com/pypa/virtualenv/issues/1818>`_)
  * Avoid spawning new windows when doing seed package upgrades in the background on Windows - by :user:`gaborbernat`. (`#1928 <https://github.com/pypa/virtualenv/issues/1928>`_)
  * Fix a bug that reading and writing on the same file may cause race on multiple processes. (`#1938 <https://github.com/pypa/virtualenv/is
@pypa pypa locked and limited conversation to collaborators Jan 14, 2021
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