removed the use of f'' strings

run.py

@@ -16,7 +16,7 @@ A...P...
 
 # Config
 DOMAIN = 'https://ap.virtualprivateserver.space'
-# domain = 'http://localhost:5000' # for local testing only, ActivityPub doesn't allow the usage of http:// (it only accepts https://)
+# domain = 'http://localhost:5010' # for local testing only, ActivityPub doesn't allow the usage of http:// (it only accepts https://)
 
 def publicKey():
 	if not os.path.exists('./public.pem'):
@@ -36,8 +36,8 @@ APP = flask.Flask(__name__)
 @APP.route('/', methods=['GET'])
 def index():
 	""" Displays the index page accessible at '/' """
-	
-	content = f'This ActivityPub Server is running !!! (exciting): ({ DOMAIN })'
+
+	content = 'This ActivityPub Server is running !!! (exciting): ({ domain })'.format(domain=DOMAIN)
 	return content
 
 @APP.route('/.well-known/webfinger', methods=['GET'])
@@ -87,10 +87,10 @@ def inbox(actor):
 	"""
 
 	if flask.request.method == 'GET':	
-		return f'''This has been a <em>{ flask.request.method }</em> request. <br>
-		It came with the following header: <br><br><em>{ flask.request.headers }</em><br><br>
+		return '''This has been a <em>{ mode }</em> request. <br>
+		It came with the following header: <br><br><em>{ headers }</em><br><br>
 		You have searched for the actor <em>{ actor }</em>. <br>
-		This is <em>{ DOMAIN }</em>'s shared inbox: <br><br><em>{ str(INBOX) }</em>'''
+		This is <em>{ domain }</em>'s shared inbox: <br><br><em>{ inbox }</em>'''.format(mode=flask.request.method, headers=flask.request.headers, actor=actor, somain=DOMAIN, inbox=str(INBOX))
 
 	if flask.request.method == 'POST':
 		INBOX.append(flask.request.data)	
@@ -98,4 +98,4 @@ def inbox(actor):
 
 if __name__ == '__main__':
 	APP.debug=True
-	APP.run(port=5001)
+	APP.run(port=5010)