Update README.md

- Update URLs
- Point to INSTALL.md instead of to our external documentation
- Remove notes already included in installation notes
- Remove pipenv instructions

README.md

@@ -2,38 +2,19 @@ subscription-manager
 ====================
 
 The Subscription Manager package provides programs and libraries
-to allow users to manage subscriptions and yum repositories
-from the  Candlepin.
+to allow users to manage subscriptions and DNF repositories
+from the Candlepin.
 
- - http://candlepinproject.org/
- - https://fedorahosted.org/subscription-manager/
- - https://github.com/candlepin/subscription-Manager
+ - https://candlepinproject.org/
+ - https://github.com/candlepin/subscription-manager
 
 Local Installation
 ------------------
 
 In order to build, develop, and test locally, please follow
-[instructions at candlepinproject.org](http://www.candlepinproject.org/docs/subscription-manager/installation.html#installation-of-upstream-from-source-code).
+[INSTALL.md](INSTALL.md).
 
-For instructions on building the debian-packages of this project, see instructions in contrib/debian/README.source.
-
-Due to unintuitive behavior with `sys.path`
-(see https://github.com/asottile/scratch/wiki/PythonPathSadness),
-`python src/subscription_manager/scripts/subscription_manager.py` does not work
-as expected. One can run the script like this instead:
-
-```bash
-PYTHONPATH=./src python -m subscription_manager.scripts.subscription_manager
-```
-
-Similar for other bin scripts:
-
-```bash
-PYTHONPATH=./src python -m subscription_manager.scripts.rct
-# ... etc.
-```
-
-(You can also just export `PYTHONPATH` instead of setting it in each command).
+For instructions on building the debian-packages of this project, see instructions in [contrib/debian/README.source](contrib/debian/README.source).
 
 To ignore bulk commits that only change the format of the code, not the code
 itself (e.g. `black`ing whole codebase), add `.git-blame-ignore-revs` to your
@@ -43,84 +24,6 @@ git configuration:
 git config blame.ignoreRevsFile .git-blame-ignore-revs
 ```
 
-Pipenv
-------
-
-There is experimental support for installation of subscription-manager using
-Pipenv. We tested installing subscription-manager using Pipenv only on following
-operating systems:
-
-* Fedora 30
-* RHEL/CentOS 7
-* RHEL/CentOS 8
-
-We tested pipenv with Python 2 and Python 3. It is necessary to install following
-packages to your system, because binary module have to be compiled in virtual
-environment:
-
-### Python 2
-
-```bash
-dnf install -y pipenv gcc make python2-devel \
-    openssl-devel libnl3-devel
-```
-
-### Python 3
-
-```bash
-dnf install -y pipenv gcc make python3-devel \
-    openssl-devel libnl3-devel
-```
-
-You can create virtual environment using following steps:
-
-1. Create virtual environment using Python 2 or Python 3 and it is necessary to
-   use `--site-packages` argument, because virtual environment has to
-   use `rpm` Python package installed in your system. It is not possible
-   to install `rpm` Python package to virtual environment using pip/pipenv.
-
-   Python 2:
-
-   ```bash
-   pipenv --site-packages --two
-   ```
-
-   Python 3:
-
-   ```bash
-   pipenv --site-packages --three
-   ```
-
-2. Install required Python packages defined in `Pipfile` into virtual environment:
-
-   ```bash
-   pipevn install
-   ```
-
-3. Start virtual environment:
-
-   ```bash
-   pipenv shell
-   ```
-
-4. Build binary modules in virtual environment:
-
-   ```bash
-   python ./setup.py build
-   ```
-
-5. Install subscription-manager into virtual environment:
-
-   ```bash
-   python ./setup.py install
-   ```
-
-6. It should be possible to run subscription-manager in virtual environment
-
-   ```bash
-   sudo subscription-manager version
-   ```
-
 Development of the Subscription-Manager Deployment Ansible role
 ---------------------------------------------------------------
 The Ansible role that is used for deploying subscription-manager can be found at