默认的

django=2.2 version

resetpwd/utils/crypto.py

@@ -1,4 +1,11 @@
-from cryptography.fernet import Fernet
+import os
+import random
+
+try:
+    from cryptography.fernet import Fernet
+except ImportError:
+    os.system('pip3 install cryptography')
+    from cryptography.fernet import Fernet
 
 
 class Crypto(object):
@@ -6,11 +13,6 @@ class Crypto(object):
     def __init__(self, key):
         self.factory = Fernet(key)
 
-    @staticmethod
-    def generate_key():
-        key = Fernet.generate_key()
-        print(key)
-
     # 加密
     def encrypt(self, string):
         token = str(self.factory.encrypt(string.encode('utf-8')), 'utf-8')
@@ -20,3 +22,8 @@ class Crypto(object):
     def decrypt(self, token):
         string = self.factory.decrypt(bytes(token.encode('utf-8'))).decode('utf-8')
         return string
+
+
+if __name__ == '__main__':
+    key = Fernet.generate_key()
+    print(key)