Check out example codes for "dataframe to dict without index". It will help you in understanding the concepts better.

Code Example 1

df.to_dict('index')

Code Example 2

{'Name': ['John', 'Sara', 'John', 'Sara'],
 'Sem': ['Sem1', 'Sem1', 'Sem2', 'Sem2'],
 'Subject': ['Mathematics', 'Biology', 'Biology', 'Mathematics'],
 'Grade': ['A', 'B', 'A+', 'B++']}

Code Example 3

df.to_dict('list')

Code Example 4

{0: {'Name': 'John', 'Age': 38, 'City': 'Boston'},
 1: {'Name': 'Sara', 'Age': 47, 'City': 'Charlotte'},
 2: {'Name': 'Peter', 'Age': 63, 'City': 'London'},
 3: {'Name': 'Cecilia', 'Age': 28, 'City': 'Memphis'}}

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