10.`evennia start` (make sure to make a superuser when asked)
Evennia should now be running and you can connect to it by pointing a web browser to `http://localhost:4001` or a MUD telnet client to `localhost:4000` (use `127.0.0.1` if your OS does not recognize `localhost`).
Note that, the default Python version for your distribution may still not be Python3.7 after this. This is ok - we'll specify exactly which Python to use later.
You should make sure to *not* be `root` after this step, running as `root` is a
security risk. Now create a folder where you want to do all your Evennia
development:
```
mkdir muddev
cd muddev
```
Next we fetch Evennia itself:
```
git clone https://github.com/evennia/evennia.git
```
A new folder `evennia` will appear containing the Evennia library. This only
contains the source code though, it is not *installed* yet. To isolate the
Evennia install and its dependencies from the rest of the system, it is good
Python practice to install into a _virtualenv_. If you are unsure about what a
virtualenv is and why it's useful, see the [Glossary entry on
virtualenv](Glossary#virtualenv).
Run `python -V` to see which version of Python your system defaults to.
```
# If your Linux defaults to Python3.7+:
virtualenv evenv
# If your Linux defaults to Python2 or an older version
# of Python3, you must instead point to Python3.7+ explicitly:
virtualenv -p /usr/bin/python3.7 evenv
```
A new folder `evenv` will appear (we could have called it anything). This
folder will hold a self-contained setup of Python packages without interfering
with default Python packages on your system (or the Linux distro lagging behind
on Python package versions). It will also always use the right version of Python.
Activate the virtualenv:
```
source evenv/bin/activate
```
The text `(evenv)` should appear next to your prompt to show that the virtual
environment is active.
> Remember that you need to activate the virtualenv like this *every time* you
> start a new terminal to get access to the Python packages (notably the
> important `evennia` program) we are about to install.
Next, install Evennia into your active virtualenv. Make sure you are standing
at the top of your mud directory tree (so you see the `evennia/` and `evenv/`
The Evennia server is a terminal program. Open the terminal e.g. from
*Applications->Utilities->Terminal*. [Here is an introduction to the Mac terminal](http://blog.teamtreehouse.com/introduction-to-the-mac-os-x-command-line)
if you are unsure how it works. If you run into any issues during the
> You should then follow the Linux install instructions above.
The Evennia server itself is a command line program. In the Windows launch
menu, start *All Programs -> Accessories -> command prompt* and you will get
the Windows command line interface. Here is [one of many tutorials on using the Windows command line](http://www.bleepingcomputer.com/tutorials/windows-command-prompt-introduction/)
if you are unfamiliar with it.
* Install Python [from the Python homepage](https://www.python.org/downloads/windows/). You will need to be a
Windows Administrator to install packages. You want Python version **3.7.0** (latest verified version), usually
the 64-bit version (although it doesn't matter too much). **When installing, make sure
to check-mark *all* install options, especially the one about making Python
available on the path (you may have to scroll to see it)**. This allows you to
just write `python` in any console without first finding where the `python`
program actually sits on your hard drive.
* You need to also get [GIT](http://git-scm.com/downloads) and install it. You
can use the default install options but when you get asked to "Adjust your PATH
environment", you should select the second option "Use Git from the Windows
Command Prompt", which gives you more freedom as to where you can use the
program.
* Finally you must install the [Microsoft Visual C++ compiler for
Python](https://aka.ms/vs/16/release/vs_buildtools.exe). Download and run the linked installer and
install the C++ tools. Keep all the defaults. Allow the install of the "Win10 SDK", even if you are on Win7 (not tested on older Windows versions). If you later have issues with installing Evennia due to a failure to build the "Twisted wheels", this is where you are missing things.
* You *may* need the [pypiwin32](https://pypi.python.org/pypi/pypiwin32) Python headers. Install these only if you have issues.
You can install Evennia wherever you want. `cd` to that location and create a
new folder for all your Evennia development (let's call it `muddev`).
```
mkdir muddev
cd muddev
```
> Hint: If `cd` isn't working you can use `pushd` instead to force the
> directory change.
Next we fetch Evennia itself:
```
git clone https://github.com/evennia/evennia.git
```
A new folder `evennia` will appear containing the Evennia library. This only
contains the source code though, it is not *installed* yet. To isolate the
Evennia install and its dependencies from the rest of the system, it is good
Python practice to install into a _virtualenv_. If you are unsure about what a
to build [Evennia's tutorial world](./Tutorial-World-Introduction) - it's a small solo quest to explore. Only run the instructed `@batchcommand` once. You'll get a lot of text scrolling by as the tutorial is built. Once done, the `tutorial` exit will have appeared out of Limbo - just write `tutorial` to enter it.
Once you get back to `Limbo` from the tutorial (if you get stuck in the tutorial quest you can do `@tel #2` to jump to Limbo), a good idea is to learn how to [start, stop and reload](./Start-Stop-Reload) the Evennia server. You may also want to familiarize yourself with some [commonly used terms in our Glossary](./Glossary). After that, why not experiment with [creating some new items and build some new rooms](./Building-Quickstart) out from Limbo.
From here on, you could move on to do one of our [introductory tutorials](./Tutorials) or simply dive headlong into Evennia's comprehensive [manual](https://github.com/evennia/evennia/wiki). While Evennia has no major game systems out of the box, we do supply a range of optional *contribs* that you can use or borrow from. They range from dice rolling and alternative color schemes to barter and combat systems. You can find the [growing list of contribs here](https://github.com/evennia/evennia/blob/master/evennia/contrib/README.md).
If you have any questions, you can always ask in [the developer chat](http://webchat.freenode.net/?channels=evennia&uio=MT1mYWxzZSY5PXRydWUmMTE9MTk1JjEyPXRydWUbb) `#evennia` on `irc.freenode.net` or by posting to the [Evennia forums](https://groups.google.com/forum/#%21forum/evennia). You can also join the [Discord Server](https://discord.gg/NecFePw).
Finally, if you are itching to help out or support Evennia (awesome!) have an
Remember, the server logs are in `mygame/server/logs/`. To easily view server logs in the terminal,
you can run `evennia -l`, or (in the future) start the server with `evennia start -l`.
### Linux Troubleshooting
- If you get an error when installing Evennia (especially with lines mentioning
failing to include `Python.h`) then try `sudo apt-get install python3-setuptools python3-dev`.
Once installed, run `pip install -e evennia` again.
- Under some not-updated Linux distributions you may run into errors with a
too-old `setuptools` or missing `functools`. If so, update your environment
with `pip install --upgrade pip wheel setuptools`. Then try `pip install -e evennia` again.
- One user reported a rare issue on Ubuntu 16 is an install error on installing Twisted; `Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-vnIFTg/twisted/` with errors like `distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('incremental>=16.10.1')`. This appears possible to solve by simply updating Ubuntu with `sudo apt-get update && sudo apt-get dist-upgrade`.
- Users of Fedora (notably Fedora 24) has reported a `gcc` error saying the directory `/usr/lib/rpm/redhat/redhat-hardened-cc1` is missing, despite `gcc` itself being installed. [The confirmed work-around](https://gist.github.com/yograterol/99c8e123afecc828cb8c) seems to be to install the `redhat-rpm-config` package with e.g. `sudo dnf install redhat-rpm-config`.
- Some users trying to set up a virtualenv on an NTFS filesystem find that it fails due to issues with symlinks not being supported. Answer is to not use NTFS (seriously, why would you do that to yourself?)
### Mac Troubleshooting
- Mac users have reported a critical `MemoryError` when trying to start Evennia on Mac with a Python version below `2.7.12`. If you get this error, update to the latest XCode and Python2 version.
- Some Mac users have reported not being able to connect to `localhost` (i.e. your own computer). If so, try to connect to `127.0.0.1` instead, which is the same thing. Use port 4000 from mud clients and port 4001 from the web browser as usual.
### Windows Troubleshooting
- If you installed Python but the `python` command is not available (even in a new console), then you might have missed installing Python on the path. In the Windows Python installer you get a list of options for what to install. Most or all options are pre-checked except this one, and you may even have to scroll down to see it. Reinstall Python and make sure it's checked.
- If your MUD client cannot connect to `localhost:4000`, try the equivalent `127.0.0.1:4000` instead. Some MUD clients on Windows does not appear to understand the alias `localhost`.
- If you run `virtualenv evenv` and get a `'virtualenv' is not recognized as an internal or external command,
operable program or batch file.` error, you can `mkdir evenv`, `cd evenv` and then `python -m virtualenv .` as a workaround.
- Some Windows users get an error installing the Twisted 'wheel'. A wheel is a pre-compiled binary package for Python. A common reason for this error is that you are using a 32-bit version of Python, but Twisted has not yet uploaded the latest 32-bit wheel. Easiest way to fix this is to install a slightly older Twisted version. So if, say, version `18.1` failed, install `18.0` manually with `pip install twisted==18.0`. Alternatively you could try to get a 64-bit version of Python (uninstall the 32bit one). If so, you must then `deactivate` the virtualenv, delete the `evenv` folder and recreate it anew (it will then use the new Python executable).
- If your server won't start, with no error messages (and no log files at all when starting from scratch), try to start with `evennia ipstart` instead. If you then see an error about `system cannot find the path specified`, it may be that the file `evennia/evennia/server/twistd.bat` has the wrong path to the `twistd` executable. This file is auto-generated, so try to delete it and then run `evennia start` to rebuild it and see if it works. If it still doesn't work you need to open it in a text editor like Notepad. It's just one line containing the path to the `twistd.exe` executable as determined by Evennia. If you installed Twisted in a non-standard location this might be wrong and you should update the line to the real location.
