[1.0.0b4] poetry run fails with FileNotFoundError

• I am on the latest Poetry version.

• I have searched the issues of this repo and believe that this is not a duplicate.

• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option). poetry run -vvv does not change anything about the output

• OS version and name: Linux x86_64 (Elementary OS)

• Poetry version: 1.0.0b4

• Link of a Gist with the contents of your pyproject.toml file: Link (generated with poetry new)

Issue

Running poetry run without additional argument fails with

[FileNotFoundError]
[Errno 2] No such file or directory

Executing poetry run pip list for example works fine. It’s just with either no argument or when the first argument is not found as an executable.

[mattwelke]

I’m getting this error even after I run poetry install.

Steps to reproduce:

• Create new Poetry project with poetry init.
• Create file app.py with contents print('hello').
• Run poetry run app.py.

Something I notice is that poetry can’t run my program but using python directly can:

poetry run app.py 

  FileNotFoundError

  [Errno 2] No such file or directory

  at ~/.pyenv/versions/3.9.1/lib/python3.9/os.py:607 in _execvpe
       603│         path_list = map(fsencode, path_list)
       604│     for dir in path_list:
       605│         fullname = path.join(dir, file)
       606│         try:
    →  607│             exec_func(fullname, *argrest)
       608│         except (FileNotFoundError, NotADirectoryError) as e:
       609│             last_exc = e
       610│         except OSError as e:
       611│             last_exc = e

python app.py 
hello

EDIT:

Oh wait, I’m just stupid. I misunderstood how to use the poetry run command. Checking the docs helped me:

poetry run python app.py
hello

[technillogue]

it would be awfully nice if poetry told you to run poetry install or something instead of just FileNotFoundError