Poetry install packages but doesn't found module

[danilobatistaqueiroz]

I installed poetry in my Ubuntu, started a new project using poetry new poetry-demo, but when I install a package, and start using it, Python can't find the module.

The same problem occurs with pipenv.

Ubuntu 20.04

I'm using my user and not root.

I tried to install camelcase package:

inside poetry.lock

[[package]]
name = "camelcase"
version = "0.2"
description = "Converts a string to Camel Case"
category = "main"
optional = false
python-versions = "*"

inside pyproject.toml

[tool.poetry.dependencies]
python = "^3.8"
camelcase = "^0.2"

inside cameltest.py

import camelcase

running poetry install the screen shows everything ok:

running poetry run python3.8 camelcases.py shows:

Traceback (most recent call last):
  File "camelcases.py", line 1, in <module>
    import camelcase
ModuleNotFoundError: No module named 'camelcase'

If I run ls /home/danilo/.cache/pypoetry/virtualenvs/poetry-demo-NpfZs6bz-py3.8/lib/python3.8/site-packages

it lists many files and directories, but doesn't show camelcase module.

if I run poetry run pip list it doesn't list camelcase module.

I ran an ubuntu docker container, installed poetry, and its fine, the directory /home/danilo/.cache/pypoetry/virtualenvs/poetry-demo-NpfZs6bz-py3.8/lib/python3.8/site-packages and the command poetry run pip list list the camelcase module, but in my machine, it doesn't work.

My default Python3 is 3.8 : python3 --version
But when I use poetry install the camelcase package is installed inside my python3.6 installation outside virtualenv, /home/danilo/.local/lib/python3.6/site-packages/camelcase

[danilobatistaqueiroz]

The problem is pip, it installs in python3.6 folder, and when it tries to uninstall, it searches in python3.8 folder

[danilobatistaqueiroz]

it was the global configuration of pip

[maxzw]

How did you solve this?

[lejshi3]

[0xUgochukwu]

in case you're still having this problem in poetry you can turn on the option to create a virtual environment in poetry before installing the packages, also don't forget to activate the virtual environment or add the path to your PATH environment variable

[sooworrow]

I had the similar problem. I solved it simply:
$ poetry lock
My project was just starting, so I didn't use the --no-update flag
and after that the command:
$ poetry install