[FIXED] UnboundLocalError: cannot access local variable 'filename' where it is not associated with a value

Issue

What is the best way to fix this? Please help.

Here is my Code.

           if command == '/enable':
             filename='line_en.xml'
            else:
             if command == '/disable':
              filename='line_dis.xml'
        
             with open(filename) as f:
              data = f.read().replace('\n', '').replace('\r', '').encode()
             response = requests.put('http://www.xxxx.com')

with open(filename) as f:
              ^^^^^^^^
UnboundLocalError: cannot access local variable 'filename' where it is not associated with a value

Solution

Use match case advantage over if-elif-else.

snippet:

command = '/enable'

match command:
    case '/enable':
        filename = 'line_en.xml'
    case '/disable':
        filename = 'line_dis.xml'

with open(filename) as f:
    data = f.read().replace('\n', '').replace('\r', '').encode()

response = requests.put('http://www.xxxx.com')

Answered By - toyota Supra