Issue with formating element of list on 2 places-CodePudding

I'm trying to format my data on 2 places. If it contains only 1 element, it should append 0 to it. For example new_time = [10,52]My desire output is [10,52] For [10,5] My desire output is [10,05] I read about this method new_time = [new_time[0],new_time[1]:02]. But output of this is invalid syntax. Does anybody know why it isn't work? I did similar exercise and it works.

CodePudding user response：

It is not possible for integers to be denoted with leading zeroes, and it is by design. Try to run this statement into your python console: print(05). You would get an error stating that

SyntaxError: leading zeros in decimal integer literals are not permitted; 
use an 0o prefix for octal integers

But you can typecast integers into strings and logically put leading zeroes if you need.

CodePudding user response：

Integers(and Floats) can not be written with leading zeros. What you can do in this case is to convert them to string like this:

new_time = [10,5]
ls= [f'{_:02}' for _ in new_time]
print(ls) # Returns ['10', '05']

CodePudding user response：

I'm afraid you can not display left-zeros for values of type int, unless you change them into str:

new_time = ["d"%i for i in new_time]

for which, new_time outputs:

['10', '05']

CodePudding user response：

  new_time = [10, 5]
  formated_time = []
  for item in new_time:
  if item < 10:
     time = f"0{item}"
     formated_time.append(time)
  if item >= 10:
     time = item
     formated_time.append(time)
  print(formated_time)
  """note:but while using it again you should use type('int') before the item"""