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Maeve Morton
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Asked: 2022-05-18T20:21:15+00:00 In:

How can I handle – typeerror: must be str, not int?

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How to solve the problem – typeerror: must be str, not int? I have the sample detail:

if verb == "stoke":
 
  if items["furnace"] >= 1:
  print("going to stoke the furnace")
 
  if items["coal"] >= 1:
  print("successful!")
  temperature += 250 
  print("the furnace is now " + (temperature) + "degrees!")
  ^this line is where the issue is occuring
  else:
  print("you can't")
 
  else:
  print("you have nothing to stoke")

While I was running it, I found the warning message:

Traceback(most recent call last):
  File "C:\Users\User\Documents\Python\smelting game 0.3.1 build 
  incomplete.py"
  , line 227, in <module>
  print("the furnace is now " + (temperature) + "degrees!")
  TypeError: must be str, not int

That is my question in my midterm exam, and it is urgent. I searched the solutions on some websites, but I didn’t get it. I may miss any line or other changes. I appreciate your assistance!

must be strnot int
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2 Answers

  1. Best Answer
    Expert

    The cause:

    You have got this error because you are attempting to write integer values in your program but it is invalid, because it requires string values.

    Solution:

    Before concatenating, you have to change int to str by the following  command:

    print("the furnace is now " + str(temperature) + "degrees!")
    • 0

  2. Python offers many ways to format strings.

    .format() has a new style that supports rich formatting. 

    >>> temperature = 10
>>> print("the furnace is now {} degrees!".format(temperature))
the furnace is now 10 degrees!

    Specifier for the % old style format: 

    >>> print("the furnace is now %d degrees!" % temperature)
the furnace is now 10 degrees!

    Py 3.6 with the new f"" format strings 

    >>> print(f"the furnace is now {temperature} degrees!")
the furnace is now 10 degrees!

    Or using print()s default separator: 

    >>> print("the furnace is now", temperature, "degrees!")
the furnace is now 10 degrees!

    The least effective way to construct a string is by concatenating it with str(). 

    >>> print("the furnace is now " + str(temperature) + " degrees!")
the furnace is now 10 degrees!

    Oder join()ing it 

    >>> print(' '.join(["the furnace is now", str(temperature), "degrees!"]))
the furnace is now 10 degrees!
    • 23

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