Extra `.exe` suffix on assumed path - `Assuming app is 'pip_search.exe.exe' (Windows only)` and `[WinError 2] The system cannot find the file specified` running `pipx run <package>`

[Spitfire1900]

When running any pipx run command the following stack trace is thrown

PS C:\Bitbucket> pipx run  -v --no-cache pip-search
pipx >(setup:850): pipx version is 1.4.1
pipx >(setup:851): Default python interpreter is 'C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\python.exe'
pipx >(run_package:129): Assuming app is 'pip-search.exe' (Windows only)
pipx >(run_subprocess:168): running <checking pip's availability>
pipx >(needs_upgrade:77): Time since last upgrade of shared libs, in seconds: 804285. Upgrade will be run by pipx if greater than 2592000.
pipx >(run_subprocess:168): running <checking pip's availability>
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
pipx >(run_package:156): venv location is C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b
pipx >(run_subprocess:168): running <checking pip's availability>
pipx >(run_subprocess:168): running <checking pip's availability>
creating virtual environment...
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\python.exe -m venv --without-pip C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b
pipx >(run_subprocess:168): running <checking pip's availability>
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\shared\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\python.exe --version
pipx >(_parsed_package_to_package_or_url:137): cleaned package spec: pip-search
installing pip-search...
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\python.exe -m pip --no-input install pip-search
pipx >(run_subprocess:168): running <fetch_info_in_venv commands>
pipx >(get_venv_metadata_for_package:339): get_venv_metadata_for_package: 2195ms
pipx >(_parsed_package_to_package_or_url:137): cleaned package spec: pip-search
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
NOTE: running app 'pip_search.exe' from 'pip-search'
pipx >(_download_and_run:253): Assuming app is 'pip_search.exe.exe' (Windows only)
pipx >(run_subprocess:168): running C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
pipx >(exec_app:370): exec_app: C:\Users\XXXXXXX\AppData\Local\pipx\pipx\Cache\13a61f997a2511b\Scripts\pip_search.exe.exe
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Scripts\pipx.exe\__main__.py", line 7, in <module>
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\main.py", line 911, in cli
    return run_pipx_command(parsed_pipx_args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\main.py", line 197, in run_pipx_command
    commands.run(
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\commands\run.py", line 200, in run
    run_package(
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\commands\run.py", line 157, in run_package
    _download_and_run(
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\commands\run.py", line 271, in _download_and_run
    venv.run_app(app, app_filename, app_args)
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\venv.py", line 402, in run_app
    exec_app([str(self.bin_path / filename)] + app_args)
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\site-packages\pipx\util.py", line 374, in exec_app
    subprocess.run(
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\subprocess.py", line 548, in run
    with Popen(*popenargs, **kwargs) as process:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\subprocess.py", line 1026, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\Lib\subprocess.py", line 1538, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [WinError 2] The system cannot find the file specified

I think the issue is noted by Assuming app is 'pip_search.exe.exe' (Windows only)

Expected behavior

The command should be ran as expected.

[Spitfire1900]

This reproduces at least as far back a 1.2.1

[Spitfire1900]

Added breakpoint to pipx/util.py:

(Pdb) cmd
['C:\\Users\\XXXXXXX\\.local\\pipx\\.cache\\13a61f997a2511b\\Scripts\\pip_search.exe.exe']

(Pdb) bt
  <frozen runpy>(198)_run_module_as_main()
  <frozen runpy>(88)_run_code()
  c:\users\XXXXXXX\.pyenv\pyenv-win\versions\3.11.7\scripts\pipx.exe\__main__.py(7)<module>()
-> sys.exit(cli())
  c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\main.py(911)cli()
-> return run_pipx_command(parsed_pipx_args)
  c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\main.py(197)run_pipx_command()
-> commands.run(
  c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\commands\run.py(200)run()
-> run_package(
  c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\commands\run.py(157)run_package()
-> _download_and_run(
  c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\commands\run.py(271)_download_and_run()
-> venv.run_app(app, app_filename, app_args)
  c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\venv.py(402)run_app()
-> exec_app([str(self.bin_path / filename)] + app_args)
> c:\users\XXXXXXX\appdata\roaming\python\python311\site-packages\pipx\util.py(387)exec_app()
-> print('breakpoint')

[Spitfire1900]

In the above example a workaround is pipx run --spec=pip-search pip_search