Python Open File - If Else Statement

I am confused about the output of my code.

This is my file:

201707001 Jenson_ 
201707002 Richard 
201707003 Jean

This is my code:

def studentInfo (userInput):  # storing student info
    # read the students file
    with open('C:\\Users\\jaspe\\Desktop\\PADS Assignment\\Student.txt') as f:
        for line in f:
            stdId, stdName = line.strip().split(" ", 1)
            # check if the student exist
            if userInput == stdId:
                print("Student found!")
                print("Student ID: " + stdId + "\nStudent Name: " + stdName)
            else:
                print("The student does not exist")


studentFinder = input("Please enter id: ")
studentInfo(studentFinder)

This is my output of the code

Please enter id: 201707001
Student found!
Student ID: 201707001
Student Name: Jenson
The student does not exist
The student does not exist

How do I fix my code?