Filling in missing values

[melm0]

Thanks! here is the code to normalize the json table. From there fillna(method='bfill') does not fill in missing values in the 'name' column

import pandas as pd
import json
from pandas.io.json import json_normalize
import numpy as np
#loading data in file 
file = "world_bank_projects.json"
with open(file) as json_file:
    json_data = json.load(json_file)
#normalizing data with project name column. 
fill = json_normalize(json_data,'mjtheme_namecode', 'project_name')
fill.head(25)