Remove the first space in the block of code as it is not necessary.
This
```
$ python --version
```
Becomes this
```
$ python --version
```
Also break the big block of code into individual blocks.
Because of issue #2769 at the moment the `lbrynet` daemon
will only work correctly with Python 3.7.
The `deadsnakes` personal package archive (PPA) provides
Python 3.7 for Ubuntu distributions that no longer have it
in their official repositories like 18.04 and 20.04.
If Python 3.8+ is used, the daemon will start but the RPC server
may not accept messages, returning the following:
```
Could not connect to daemon. Are you sure it's running?
```
Leave with `deactivate`.
Enter the environment again with
```
source lbry-venv/bin/activate
```
When developing, we can start the server interactively.
```
python lbry/extras/cli.py start
```
Parameters can be passed in the same way.
```
python lbry/extras/cli.py wallet balance
```
If a Python debugger (`pdb` or `ipdb`) is installed we can also start
it in this way, set up break points, and step through the code.
```
ipdb lbry/extras/cli.py
```
This is nothing special, it just allows the module
to run without throwing an error on the import.
From
```
from lbry.wallet.client.basenetwork import ClientSession
```
To
```
from lbry.wallet.network import ClientSession
```
This is nothing special, it just allows the module
to run without throwing an error on the import.
From
```
from lbry.wallet.client.basenetwork import ClientSession
```
To
```
from lbry.wallet.network import ClientSession
```
This is nothing special, it just allows the module
to run without throwing an error.
From
```
from lbry.wallet.server.db import SQLDB
```
To
```
from lbry.wallet.server.db.writer import SQLDB
```
