Python web scraper that pulls data from yahoo finance then saves to csv

sample run

Enter ticker symbol: ex. AAPL, MSFT, FB... aapl

Ticker symbol AAPL accepted.

Enter how many days of past data (1-50): 50

Gathering data for AAPL from 50 day/s in the past.

Saving AAPL50days.csv to C:\Users\MyPythonScripts ...

Data saved to file C:\Users\MyPythonScripts\AAPL50days.csv

#TO-DO

add functionality to search for longer periods of time and choose between daily, weekly or monthly periods

add functionality for checking if a ticker is a valid/in use ticker