ustropo

code = 1004001
value = 15.50
msg = "This action is not allowed"

print(f"Error {code:10d}")    # code will occupy 10 characters
## 'Error    1004001'
print(f"Error {code:#X}")     # code will be shown as hexa, uppercase, with 0X prefix
## 'Error 0XF51E1'
print(f"Value: {value:.4f}")  # value will have 4 digits after decimal point
## 'Value: 15.5000'

ustropo

>>> f"Error {code}: {msg}"
'Error 1004001: This action is not allowed'
>>> f"Error {code:#x}: {msg}" 
'Error 0xf51e1: This action is not allowed'

ustropo

f"Error {code}: {msg}"
## 'Error 1004001: This action is not allowed'

ustropo

"Error {}: {}".format(code, msg)
## 'Error 1004001: This action is not allowed'

ustropo

>>> "Error %d: %s" % (code, msg)
'Error 1004001: This action is not allowed'

ustropo

msg = "This action is not allowed"
details = "Please, talk to your admin"
code = 1004001

ustropo

try:
    print('ok')
except ValueError:
    print('value error')
except:
    print('other error')
else:
    print('everything went fine')

ustropo

try:
  print('some danger code')
except ValueError:
  print('a value error occurred')
except:
  print('other error happened')

ustropo

import sys

correct_password = 'supersecret!'

for i in range(3):
  password = input('Please, type your password:')
  if password == correct_password:
    break
else:
  print('Sorry! You entered the wrong password many times!')

ustropo

import sys

correct_password = 'supersecret!'
tries = 3

while tries > 0:
  password = input('Please, type your password:')
  if password == correct_password:
    break