Add external dependency python-venv

otherwise in the next step I get
```
$ python3 -m venv env
The virtual environment was not created successfully because ensurepip is not
available.  On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.

    apt-get install python3-venv
```
This commit is contained in:
ligi
2019-05-17 19:32:32 +02:00
committed by GitHub
parent 71475c5863
commit 1b434b40d2

View File

@@ -21,6 +21,7 @@ Your should install the following on your system:
* Python 3.5 or newer
* ``pip`` for Python 3 (Debian package: ``python3-pip``)
* ``python-dev`` for Python 3 (Debian package: ``python3-dev``)
* ``python-venv`` for Python 3 (Debian package: ``python3-venv``)
* ``libffi`` (Debian package: ``libffi-dev``)
* ``libssl`` (Debian package: ``libssl-dev``)
* ``libxml2`` (Debian package ``libxml2-dev``)