Basic python class for reading data

config.py

data = {
        "raw": "../data/raw/",
        "processed": "../data/processed/",
        "lookup": "../data/lookup/"
}

mapper.py

import pandas as pd
from classes.config import data

class Map:
    def __init__(self,file_name, index):
        path = data["lookup"]
        self.index = index
        self.mappings = _load_mappings(path,file_name)

    def map_data(self,df,df_index):
          return pd.merge(df, self.mappings, left_on=df_index, right_on=self.index)

def _load_mappings(path,file_name):
    return pd.read_csv(path + file_name)

reader.py

import pandas as pd
from classes.config import data

class Read:
  def __init__(self,file_name):
      path = data["raw"]
      self.df = _read_data(path,file_name)

# get data from csv
def _read_data(path,file_name):
    return pd.read_csv(path + file_name)

writer.py

import pandas as pd
from classes.config import data

class Write:
    def __init__(self,df,file_name):
        self.path = data["processed"]
        self._write_data(df,file_name)

    # write data to csv
    def _write_data(self,df,file_name):
        df.to_csv(self.path + file_name + '.csv', sep='\t')