Brownie Python .ENV文件错误导出变量不起作用？

Question

这与帕特里克·柯林斯（Patrick Collins）的“坚固性，区块链和智能合同”课程有关 - YouTube专家Python教程的初学者。

    [This is my .env file][1]
    
    
      [1]: https://i.sstatic.net/Xrw9C.png

这是我的布朗尼 - config.yaml，

dotenv : .env

wallets:
  from_key : ${PRIVATE_KEY}

我尝试在infura.io上开设一个新项目，并在.env中添加了一个新的项目ID，但没有帮助。

这是错误日志，

    ERROR LOGS
    
    C:\Users\Project\soltest>brownie run scripts/main.py --network rinkeby
    INFO: Could not find files for the given pattern(s).
    Brownie v1.19.0 - Python development framework for Ethereum
    
    SoltestProject is the active project.
    
    Running 'scripts\main.py::main'...
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\brownie\_cli\run.py", line 51, in main
        return_value, frame = run(
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\brownie\project\scripts.py", line 110, in run
        return_value = f_locals[method_name](*args, **kwargs)
      File ".\scripts\main.py", line 33, in main
        con()
      File ".\scripts\main.py", line 19, in con
        Simple_Storage = SimpleStorage.deploy({"from":account})
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\brownie\network\contract.py", line 549, in __call__
        return tx["from"].deploy(
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\brownie\network\account.py", line 510, in deploy
        receipt, exc = self._make_transaction(
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\brownie\network\account.py", line 720, in _make_transaction
        gas_price, gas_strategy, gas_iter = self._gas_price(gas_price)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\brownie\network\account.py", line 456, in _gas_price
        return web3.eth.generate_gas_price(), None, None
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\eth.py", line 986, in generate_gas_price
        return self._generate_gas_price(transaction_params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\eth.py", line 213, in _generate_gas_price
        return self.gasPriceStrategy(self.web3, transaction_params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\gas_strategies\rpc.py", line 20, in rpc_gas_price_strategy
        return web3.manager.request_blocking(RPC.eth_gasPrice, [])
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\manager.py", line 197, in request_blocking
        response = self._make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\manager.py", line 150, in _make_request
        return request_func(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\formatting.py", line 94, in middleware
        response = make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\gas_price_strategy.py", line 90, in middleware
        return make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\formatting.py", line 94, in middleware
        response = make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\attrdict.py", line 33, in middleware
        response = make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\formatting.py", line 94, in middleware
        response = make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\formatting.py", line 94, in middleware
        response = make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\formatting.py", line 94, in middleware
        response = make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\buffered_gas_estimate.py", line 40, in middleware
        return make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\middleware\exception_retry_request.py", line 105, in middleware
        return make_request(method, params)
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\providers\rpc.py", line 88, in make_request
        raw_response = make_post_request(
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\web3\_utils\request.py", line 103, in make_post_request
        response.raise_for_status()
      File "C:\Users\Project\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\requests\models.py", line 960, in raise_for_status
        raise HTTPError(http_error_msg, response=self)
    HTTPError: 401 Client Error: Unauthorized for url: https://rinkeby.infura.io/v3/PROJECT_ID

我在.env文件中遇到一个错误，它浪费了我两天，我无法弄清楚

Answer 1

您添加了一个新的网络。您正在尝试将请求从字面上发送到'https://rinkeby.infura.io/v3/project_id'。在您的情况下，Project_ID不是占位符，它是URL的一部分。

您的网络URL（请参阅 brownie Network网络管理）：

brownie networks modify rinkeby host='https://rinkeby.infura.io/v3/$PROJECT_ID'

更新 “ Rinkeby”，带有您正在使用的网络名称。此外，您可以尝试使用infura的完整URL（进行故障排除）：

brownie networks modify rinkeby host='https://rinkeby.infura.io/v3/0gg81053a4...ad