crontab 没有读取文件的权限

Question

i need to calculate the percentage difference between yesterday bitcoin price and current price.

I have a python script and the current price is given by:

 response = requests.get('http://api.coindesk.com/v1/bpi/currentprice.json')

but i don't know how to get yesterday price. The only way that i found is saving the current price in a txt file and updating it every day. The problem is with crontab that doesn't have the access to the file and can't read this line.

file = open("yesprice.txt", "r")

how can i fix this?

Answer 1

chmod a+r yesprice.txt Should do the trick.