pulpがインストールできません！

前提・実現したいこと

python初心者です。anacondaにてpulpをインストールしようと思ったですが、以下のエラーメッセージが発生しました。みなさんのお力をお貸しください！お願いします！

発生している問題・エラーメッセージ

(base) C:\Users\＊>conda install -c primer pulp
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: |
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.
Examining vc:  29%|███████████████████▍                                               | 11/38 [00:00<00:00, 164.62it/s]/Examining certifi:  74%|█████████████████████████████████████████████▋                | 28/38 [00:00<00:00, 144.53it/s]
failed
                                                                                                                       -
UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:

Specifications:

  - pulp -> python=2.7
  - pulp -> python[version='>=2.7,<2.8.0a0']

Your python: python=3.7

If python is on the left-most side of the chain, that's the version you've asked for.
When python appears to the right, that indicates that the thing on the left is somehow
not available for the python version you are constrained to. Note that conda will not
change your python version to a different minor version unless you explicitly specify
that.

The following specifications were found to be incompatible with each other:



Package setuptools conflicts for:
pulp -> setuptools
python=3.7 -> pip -> setuptools
Package certifi conflicts for:
pulp -> python=2.7 -> pip -> requests -> certifi[version='>=2017.4.17']
python=3.7 -> pip -> setuptools -> certifi[version='>=2016.09|>=2016.9.26']
Package msgpack-python conflicts for:
pulp -> python=2.7 -> pip -> cachecontrol -> msgpack-python
Package pip conflicts for:
pulp -> python=2.7 -> pip
python=3.7 -> pip
Package wincertstore conflicts for:
pulp -> setuptools -> wincertstore[version='>=0.2']
python=3.7 -> pip -> setuptools -> wincertstore[version='>=0.2']
Package vc conflicts for:
pulp -> python=2.7 -> vc=9
python=3.7 -> vc[version='14.*|>=14.1,<15.0a0']
python=3.7 -> openssl[version='>=1.1.1b,<1.1.2a'] -> vc=9
Package ca-certificates conflicts for:
pulp -> python=2.7 -> ca-certificates
python=3.7 -> openssl[version='>=1.1.1b,<1.1.2a'] -> ca-certificates
Package wheel conflicts for:
python=3.7 -> pip -> wheel
pulp -> python=2.7 -> pip -> wheel

試したこと

python3及び2をインストールしたことがあり、"The following specifications were found
to be incompatible with the existing python installation in your environment"と表示されたことからおそらくどちらかのバージョンをアンインストールしないといけないと思ったので、試したことはパソコン(windows10)の設定→アプリ→python2からこのバージョンをアンインストールして、パソコンを再起動しました。しかし、その後"conda info python"と打つと、python2の情報も表示され、アンインストールされていないと思ったので、これ以上先には自力で進めなくなりました。