Cannot Connect to SQL Instance IF Server Name is from input() - python-3.x

Question

I have been playing around with pyodbc and for some reason when trying to connect if I get the Server property from a input() it cannot find the server, but if I take the same server name and declare it as a variable before hand it works fine with the exact same code. Does anyone know what is going on here?
Code with input()
import pyodbc
driver = '{ODBC Driver 17 for SQL Server}'
instance = input("Please Enter your SQL Instance: ")
connectionstring = f'Driver={driver}; Server={instance}; Trusted_Connection=yes'
conn = pyodbc.connect(connectionstring)
cursor = conn.cursor()
cursor.execute('SELECT name FROM sys.databases')
for row in cursor:
print(row)
Output
Code output server name from Input()
Code with Variable
import pyodbc
driver = '{ODBC Driver 17 for SQL Server}'
instance = 'DESKTOP-J7PBL8S\\NORTHWIND'
connectionstring = f'Driver={driver}; Server={instance}; Trusted_Connection=yes'
conn = pyodbc.connect(connectionstring)
cursor = conn.cursor()
cursor.execute('SELECT name FROM sys.databases')
for row in cursor:
print(row)
Output
Code output server name from variable
I have tried using str() on the input with no luck. Not really sure why it doesn't like when I get the server name from an input because it returns a string and the connection string is exactly the same as the code that works.
I am kind of curious why this is the case not really looking to use input() on any real project

Answer 1

I tried:
ins1 = input("Please Enter your SQL Instance: ")
ins2 = 'DESKTOP-J7PBL8S\\NORTHWIND'
print(ins1)
print(ins2)
Then pass the DESKTOP-J7PBL8S\\NORTHWIND as input and the output was:
DESKTOP-J7PBL8S\\NORTHWIND
DESKTOP-J7PBL8S\NORTHWIND
So I think we found the problem.
The input() returns the raw string without considering \ special meaning.
So if you use just one \-> DESKTOP-J7PBL8S\NORTHWIND, you should be able to connect to the intended server.