"TypeError: can only concatenate str (not "list") to str" why this error is showen to me?

Question

from datetime import datetime, timedelta
from pytz import timezone
import pytz
import re
while True:

    times=['Brazil','Hongkong','Australia','Mexico','US','Poland','Singapore','Portugal','Japan','Israel']
    use=[times[0],times[2],times[3],times[4]]
    print(r" enter the time zone that you want to watch ")
    o=input(f"{times}\n").lower()
    e=list(o)
    if  e=='us'or e=='usa' or e=='united state' or e=='untied states of america':
        uy=list(e)
        uy.remove(e[2:])
    else:
         mn=e[0].upper()+e[1:]
         if mn not in times:
             print("you need to enter time zone")
             continue
         else:
              if mn and uy in use:
              for i in  re.findall(f'^{mn}'|f'{uy}',pytz.all_timezones):
                  u=list(re.findall(f'^{mn}'|f'{uy}',pytz.all_timezones))
                  if u[i]=='/':
                      u.remove(u[0:i])
                      print(u)

Hello to you! I'm trying to create a code that takes me back to different time zones in the world! Although it is not finished yet and I am still in the beginning stages, I do not understand why this error is showen to me appears to me the error:

TypeError: can only concatenate str (not "list") to str

And please do not click on the sign "This question is not useful" It does not help me and I ask you to be tolerant and if you do not understand something write in the comments and I will try to correct

Answer 1

You have:

e=list(o)

which will never be caught by the if statement as it's a list, not a string. Then below you are trying to add a string to a list, hence the type error.

mn=e[0].upper()+e[1:]

From a cursory glance, I think you don't want your input converted at all.

Change these two lines:

o=input(f"{times}\n").lower()
e=list(o)

to without the conversion:

e=input(f"{times}\n").lower()