调用支付宝接口一直出现问题TypeError: ‘tuple‘ object cannot be interpreted as an integer

  File "C:UserspyAppDataLocalProgramsPythonPython37libsite-packagesalipay__init__.py", line 94, in __init__
    self._load_key()
  File "C:UserspyAppDataLocalProgramsPythonPython37libsite-packagesalipay__init__.py", line 99, in _load_key
    self._app_private_key = RSA.importKey(content)
  File "C:UserspyAppDataLocalProgramsPythonPython37libsite-packagesCryptodomePublicKeyRSA.py", line 748, in import_key
    extern_key = tobytes(extern_key)
  File "C:UserspyAppDataLocalProgramsPythonPython37libsite-packagesCryptodomeUtilpy3compat.py", line 129, in tobytes
    return bytes([s])
TypeError: 'tuple' object cannot be interpreted as an integer

读取pem密钥的时候传入的是个tuple？！

创建支付宝支付SDK对象时，需要直接传入密钥内容（str），这里的app_private_key必须要是str类型的

alipay = AliPay(
    appid=settings.ALIPAY_APPID,
    app_notify_url=None,  # 默认回调url
    app_private_key_string=app_private_key,
    alipay_public_key_string=alipay_public_key,
    sign_type="RSA2",
    debug=settings.ALIPAY_DEBUG
)

这里原来传入的是一个os.path ，需要打开这个path读入pem文件内容。

注意os.path.join(os.path.dirname(os.path.abspath(__file__))返回的是一个tuple，那就用"".join转成字符串。

# app_private_key = os.path.join(os.path.dirname(os.path.abspath(__file__)), "keys/app_private_key.pem"),
# alipay_public_key = os.path.join(os.path.dirname(os.path.abspath(__file__)), "keys/alipay_public_key.pem"),
app_private_key_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "keys/app_private_key.pem"),
alipay_public_key_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "keys/alipay_public_key.pem"),

f = open("".join(app_private_key_path), "r")
app_private_key = f.read()
f = open("".join(alipay_public_key_path), "r")
alipay_public_key = f.read()

问题解决