TypeError: can only concatenate str (not "int") to str in Python
Dung Do Tien Aug 08 2021 221
Hello, I just start learning Python 3.8 and I have some values I need to concat them as below:
fullName = "Joih Speaker"
age = 4
print("My name:" + fullName + " and age: " + age)And I got an error TypeError: can only concatenate str (not "int") to str
Traceback (most recent call last):
File "main.py", line 3, in <module>
print("My name:" + fullName + " and age: " + age)
TypeError: can only concatenate str (not "int") to strPls help me why and how can I solve it?
Have 2 answer(s) found.
- T0
Trọng Hiếu Aug 08 2021
You need to change the
numbertostringdata type:fullName = "Python 3.8" age = "4" print("My name:" + fullName + " and age: " + age)Or you can use
str()method help convert numbers to strings.fullName = "Python 3.8" age = str(4) print("My name:" + fullName + " and age: " + age) - R0
Ruslan Kurbanali Aug 08 2021
We have many ways to convert integer to string in Python.
1. Using str() function
num = 10 # check and print type of num variable print(type(num)) # convert the num into string converted_num = str(num) # check and print type converted_num variable print(type(converted_num))2. Using "%s" keyword
num = 10 # check and print type of num variable print(type(num)) # convert the num into string and print converted_num = "%s" % num print(type(converted_num))3. Using .format() function
num = 10 # check and print type of num variable print(type(num)) # convert the num into string and print converted_num = "{}".format(num) print(type(converted_num))4. Using f-string
num = 10 # check and print type of num variable print(type(num)) # convert the num into string converted_num = f'{num}' # print type of converted_num print(type(converted_num))
* Type maximum 2000 characters.
* All comments have to wait approved before display.
* Please polite comment and respect questions and answers of others.