python-dotenv 没有从.env 文件导入 PRIVATE_KEY

Question

from solcx import compile_standard
import json
from web3 import Web3
import os
from dotenv import load_dotenv



my_address = "0xDFb3e342C0A8F724bfA72e5F2773a12748977f46"
private_key = os.getenv("PRIVATE_KEY")

I am learning solidity and when I use python-dotenv to import my PRIVATE_KEY from a.env file,

export PRIVATE_KEY = 0xd6a5ea3d2c97b1dd03fd1b9c447e36791522135136665f23b0c08c6395f66d7a

it imports it as none and throws an error. this error I have given the full script that I wrote above. I hope someone can help me solve this problem

Answer 1

• Make sure .env file is in the same directory.

• Calling load_dotenv will look for .env file and sets the environment variables

  load_dotenv()

if .env file is not in the same directory you have to pass the path of.env file to load_dotenv

 load_dotenv(path_of_env)