perfin 0.0.3dev

# PerFin
PerFin is a Personal Finance library for Python

## What is PerFin
It's basically a wrapper library for Pandas and Zipline with the focus on an easy to use interface

### Implemented so far:
* Load and handle csv files
* Calculate montly savings and outliers
* Get aggregates for easy analytics

### More to come
* Will add a simple API for backtesting, plotting in Jupyter, monte carlo simulations ... over the next month

## Examples
To get a PerFin playground execute the following steps

1. Define a environment variable 'PERFIN_FILES' and point it to the directory with the csv files you want to work on
* on MacOS or Linux it's `export PERFIN_FILES=/home/user/files`.
Note: Right now, if you have on folder for all `.csv` files, they will
all be put together into one dataframe, regardless if the filenames say 'checking' or 'saving'.

2. Open the interpreter in the `PerFin` folder. Load the playground script from the examples folder.
* Option 1: Import the playground module. The code is directly executed and is then available via `playground.data`
* Option 2: Add the variables to the interpreters global scope e.g. `exec(open("/Users/admin/pythonprojects/perfin/examples/playground.py").read(), globals())`

3. Have fun