I am using the latest Python 3
letters = ['a', 'b', 'c', 'd', 'e']
letters[:3]
print((letters)[:3])
letters[3:]
print((letters)[3:])
print("Here is the whole thing :" + letters)
Error:
Traceback (most recent call last):
File "C:/Users/Computer/Desktop/Testing.py", line 6, in <module>
print("Here is the whole thing :" + letters)
TypeError: Can't convert 'list' object to str implicitly
When fixing, please explain how it works :) i dont want to just copy a fixed line
As it currently stands, you are trying to concatenate a string with a list in your final print statement, which will throw TypeError.
Instead, alter your last print statement to one of the following:
print("Here is the whole thing :" + ' '.join(letters)) #create a string from elements
print("Here is the whole thing :" + str(letters)) #cast list to string
print("Here is the whole thing : " + str(letters))
You have to cast your List-object to String first.
In addition to the str(letters) method, you can just pass the list as an independent parameter to print(). From the doc string:
>>> print(print.__doc__)
print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)
Prints the values to a stream, or to sys.stdout by default.
So multiple values can be passed to print() which will print them in sequence, separated by the value of sep (' ' by default):
>>> print("Here is the whole thing :", letters)
Here is the whole thing : ['a', 'b', 'c', 'd', 'e']
>>> print("Here is the whole thing :", letters, sep='') # strictly your output without spaces
Here is the whole thing :['a', 'b', 'c', 'd', 'e']
Or you can use string formatting:
>>> letters = ['a', 'b', 'c', 'd', 'e']
>>> print("Here is the whole thing : {}".format(letters))
Here is the whole thing : ['a', 'b', 'c', 'd', 'e']
Or string interpolation:
>>> print("Here is the whole thing : %s" % letters)
Here is the whole thing : ['a', 'b', 'c', 'd', 'e']
These methods are generally preferred over string concatenation with the + operator, although it's mostly a matter of personal taste.
