Let's say you try to do something like this, where the fruits list contains a few items, and you try to use the print statement.

#!/usr/bin/python
fruits = ["apple", "banana", "orange", "grapes"]
print ("The fruits lsit contains: " + fruits)

This should cause something like this to be returned.

Traceback (most recent call last):
  File "/home/c065234/testing.py", line 3, in <module>
    print("The fruits list contains: " + fruits)
TypeError: cannot concatenate 'str' and 'list' objects

This occurs because the print statement contains both a string, which is the text "The fruits list contains: " and a list (the fruits list). This can be resolved by using the str function to convert the fruits list into a string object.

#!/usr/bin/python
fruits = ["apple", "banana", "orange", "grapes"]
print ("The fruits list contains: " + str(fruits))

Or better yet, use Python3 f-string formatter.

#!/usr/bin/python3
fruits = ["apple", "banana", "orange", "grapes"]
print (f"The fruits list contains: {fruits}")

Which should now return the following.

The fruits list contains: ['apple', 'banana', 'orange', 'grapes']