Human: data frame from list in. Assistant: 
Here is a Python code to data frame from list in list

import pandas as pd

def df_from_list(list_of_list):
    """
    Return a data frame from a list of list.

    >>> df_from_list([[1, 2], [3, 4]])
    """
    df = pd.DataFrame(list_of_list)
    return df

# Enter the list of list
list_of_list = [[1, 2], [3, 4]]

# Calling the function
df = df_from_list(list_of_list)

# Printing the result
print(df)

#Example Output
#    0  1
# 0  1  2
# 1  3  4

#Remember to inspect code for bugs.