Starting with `pip install` as mentioned in the getting started [1] fails with the following:
```
pip install $( ./bin/pip-swh-packages --with-testing )
swh-storage[schemata,listener][testing] should either be a path to a local project or a VCS url beginning with svn+, git+, hg+, or bzr+
```
Indeed, in swh-storage, this fails with the same error:
```
cd swh-storage
pip install -e "swh-storage[schemata,listener][testing]"
```
Removing the extra [schemata,listener], the install works, that is:
```
pip install -e "swh-storage[testing]"
```
This comes from the `pip-swh-packages` script.
```
./bin/pip-swh-packages --with-testing
-e swh-core[testing]
[...]
-e swh-storage[schemata,listener][testing]
-e swh-web[testing]
-e swh-docs[testing]
```
System:
```
lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux buster/sid
Release: testing
Codename: buster
```
[1] https://docs.softwareheritage.org/devel/getting-started.html#step-2-install-python-packages-in-a-virtualenv