How to install packages using pip? about pypy3.5-feedstock HOT 5 CLOSED

pypy3 -m ensurepip

$ pypy3 -m pip install requests
# Collecting ...
$ pypy3 -c "import requests; print(requests)"
# <module 'requests' from '.../miniconda3/envs/pypy/site-packages/requests/__init__.py'>

$ conda activate pycalver_pypy35
(pycalver_pypy35) $ conda install pytest
Solving environment: done
...
## Package Plan ##

  added / updated specs:
    - pytest

The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    pytest-4.2.0               |           py37_0         341 KB
    ca-certificates-2019.1.23  |                0         126 KB
    openssl-1.0.2p             |       h14c3975_0         3.5 MB
    ------------------------------------------------------------
                                           Total:         3.9 MB
...
Executing transaction: done
$ which pypy3
/home/mbarkhau/miniconda3/envs/pycalver_pypy35/bin/pypy3
$ pypy3 -m pytest
/home/mbarkhau/miniconda3/envs/pycalver_pypy35/bin/pypy3: No module named pytest

$ conda create -n test
# ...
$ source activate test
$ which python
/usr/bin/python # AKA no python in the env.

$ conda install -c conda-forge pypy3.5
...