# Download yafour

## Downloading

Download [yafour-YYYyafour-versionZZZ.zip](YYYdZZZ/yafour/yafour-YYYyafour-versionZZZ.zip).

## Installing


### Prerequisites:
* python3
    * macOS: `brew install python`
    * Windows: <https://www.python.org/downloads/windows/>
* tkinter 
    * Linux:  `apt install python3-tk`  - or something like that
    * Windows: `pip install tk`  (not sure if this works..)
    * macOS:  `brew install python-tk`
* gfortran
    * Linux: `apt install gfortran`  - or something like that
    * Windows: <https://masuday.github.io/fortran_tutorial/install_gfortran_windows.html>
    * macOS: `brew install gfortran`

Unzip yafour-YYYyafour-versionZZZ.zip:

*  linux: `unzip yafour-YYYyafour-versionZZZ.zip`
*  windows: `tar xf yafour-YYYyafour-versionZZZ.zip`
*  macOS: `unzip yafour-YYYyafour-versionZZZ.zip`

Change directory to yafour-YYYyafour-versionZZZ

```
  cd yafour-YYYyafour-versionZZZ
```

Install:

```
   python3 -m pip install .
   OR
   python -m pip install .
```

## Running

The program is installed as "yafour" and installed in the standard location 
that 'pip' uses.


