Question: somehow i tried to get the timezone of America/New\_York (my locale time is -1 hour from EST). But im always getting the same time when i use

```
moment(new Date()).tz("America\New_York").toDate()

```

Am i using the wrong method or what happened? Can someone help me out please?

here is a link to jsFiddle:
<https://jsfiddle.net/Lgr3qdjf/>

Answer: 
The reason that your code didn't work is because your new student dictionary isn't defined as a list; therefore, you can't append.

There are couple ways of doing this but keeping it the same logic as you have now, you'll need to add a few extra steps.

```
>>> students = {'James': [70, 75, 95], 'Adams': [75, 90, 73], 'Benjamin': [80, 79, 85]}
>>> def add_student ():
...     new_student = input ('Enter student name to be added:' )
...     grades = input ('Enter new student\'s grade: ')
...     grades = grades.split (',')  # Split grades by comma
...     grades = [int (grade.strip (' ')) for grade in grades]  # Strip space between each grade & convert to integers
...     students [new_student] = grades  # Assign new student with grades
... 
>>> add_student()
Enter student name to be added:>? John
Enter new student's grade: >? 82, 79, 77
>>> students
{'Benjamin': [80, 79, 85], 'Adams': [75, 90, 73], 'James': [70, 75, 95], 'John': [82, 79, 77]}

```

**Updating answer based on comments**  

To remove the students score, you'll need ensure that the name as well as the score exists in database.

```
>>> def remove_scores():
...     name = input('Enter student name whose scores would be removed: ')
...     score = int (input('Enter score to be removed: '))
...     # Checking both student name and score exists in database
...     if name in students and score in students [name]:
...         score_index = students [name].index (score)  # Obtain the index location of the score
...         del students [name][score_index]
...         print (students)
...     else:
...         print('Student %s and/or %s score is not in our database.' % (name, score))
... 

```

First, let's add one extra score '79' to Adams to be deleted.

```
>>> students ['Adams'].append (79)
>>> students
{'Benjamin': [80, 79, 85], 'Adams': [75, 90, 73, 79], 'James': [70, 75, 97]}

```

Next, test the name and score condition.

```
>>> remove_scores()
Enter student name whose scores would be removed: >? Larry
Enter score to be removed: >? 59
Student Larry and/or 59 score is not in our database.
>>> remove_scores()
Enter student name whose scores would be removed: >? Adams
Enter score to be removed: >? 77
Student Adams and/or 77 score is not in our database.

```

Once we're happy with the result, let's delete and see the results.

```
>>> remove_scores()
Enter student name whose scores would be removed: >? Adams
Enter score to be removed: >? 79
{'Benjamin': [80, 79, 85], 'Adams': [75, 90, 73], 'James': [70, 75, 97]}

```
Try using the `defaultdict`, as it seems perfect for what you are trying to do:

```py
from collections import defaultdict

StudDict = defaultdict(list)
# Optionally, provide existing data to the object:
# StudDict = defaultdict(list, {existing_dict_with_data})

def add_student():
    ...
    StudDict[StudToAdd].append(GradesToAdd)

```

See documentation for more details here:

<https://docs.python.org/3/library/collections.html#collections.defaultdict>