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Add pygraphviz docs for Windows #20

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Add pygraphviz docs for Windows #20

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ddc90bf
Add instructions for installing `pygraphviz` on Windows 10
vburca Jun 13, 2019
2c62f5f
Small md improvements
vburca Jun 13, 2019
c011085
Add instructions for adding graphviz to PATH
vburca Jun 13, 2019
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35 changes: 31 additions & 4 deletions README.md
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Expand Up @@ -34,12 +34,39 @@ pip3 install numpy pydot networkx progressbar2 pygraphviz pymdptoolbox
pip3 install -r requirements.txt
```

### pyraphiz failing to install?
### pygraphviz failing to install?
`pygraphviz` requires you to have the graphviz package installed on your OS.
See this [thread](https://github.com/rldm/hw3-tester/issues/2)


3. Docker:
### Installing `pygraphviz` on Windows

*instructions inspired and adapted from [here](https://stackoverflow.com/questions/40809758/howto-install-pygraphviz-on-windows-10-64bit) and [here](https://stackoverflow.com/questions/45093811/installing-pygraphviz-on-windows-10-64-bit-python-3-6/54890705#54890705)*

* Download `graphviz-2.38.msi` (a dependency of `pygraphviz`) from here:
* https://graphviz.gitlab.io/_pages/Download/Download_windows.html
* Install it manually
* Add `graphviz` tot PATH; specifically, add `C:\Program Files (x86)\Graphviz2.38\bin`
* from the Windows menu (Windows logo key), search for: "*Environment Variables*" (the entry should be called "*Edit the system environment variables*")
* click on Environment Variables
* under `User variables for <username>`, find `Path` and double click on it
* click `New`
* add `C:\Program Files (x86)\Graphviz2.38\bin` and click `OK`
* **restart the Anaconda window and other command prompt windows that are open**
* *there is an easier way of doing this, through `SETX`, but it is dangerous as it can erase your entire `PATH` variable if you make some typos*
* Download the `pygraphviz` wheel from here:
* **Python 3.5/3.6/3.7**
* https://github.com/CristiFati/Prebuilt-Binaries/tree/master/Windows/PyGraphviz
* **Python 2.7**
* https://www.lfd.uci.edu/~gohlke/pythonlibs/#pygraphviz
* Navigate to the directory where the downloaded wheel file is located
* Run `pip install your_downloaded_pygraphviz_file.whl`
* Example for **Python 3.5 on Windows 10 amd64**: `pip install pygraphviz-1.5-cp35-cp35m-win_amd64.whl`
* Now you should have `pygraphviz` successfully installed. Test it properly by running the tester script with the `-s` flag.
* `python hw3_tester.py -m sample.json -i -vvv -s`

Another possible solution has been offered [here](https://stackoverflow.com/questions/45093811/installing-pygraphviz-on-windows-10-64-bit-python-3-6/53137438#53137438) but I have not tested it.

1. Docker:

```bash
docker build -t rldm/hw3-tester:v1 .
Expand Down Expand Up @@ -69,7 +96,7 @@ python hw3_tester.py -m sample.json -i -vvv
Output will show:

```
06/12/2017 01:57:32 AM - INFO:
06/12/2017 01:57:32 AM - INFO:
06/12/2017 01:57:32 AM - INFO: mdp returned median number of iterations 2
number of iterations: 2
06/12/2017 01:57:32 AM - INFO: end of script
Expand Down