Resolve more type checking issues

Author: sylvieed

src/config.py

@@ -18,7 +18,7 @@
 
 # Warn users if they have missing required environment variables
 environ_help_url = "https://github.com/Zohair-coder/drexel-scraper?tab=readme-ov-file#authentication"
-def get_environ(key: str, required = True) -> str:
+def get_environ(key: str, required: bool = True) -> str:
     if key in os.environ:
         return os.environ[key]
     elif required:

src/login.py

@@ -78,7 +78,7 @@ def login_with_drexel_connect(session: Session) -> Session:
 
     parsed_data = parse_final_mfa_page(soup)
 
-    if config.drexel_mfa_secret_key != None:
+    if config.drexel_mfa_secret_key is not None:
         mfa_token = totp.get_token(config.drexel_mfa_secret_key)
     else:
         mfa_token = input("Please input your MFA verification code: ")

src/totp.py

@@ -18,4 +18,7 @@ def get_token(secret: str) -> str:
 
 if __name__ == "__main__":
     import config
-    print(get_token(config.drexel_mfa_secret_key))
+    if config.drexel_mfa_secret_key is not None:
+        print(get_token(config.drexel_mfa_secret_key))
+    else:
+        print(f"Please set your MFA secret key to run this script. See {config.environ_help_url} for more information and help")