“TypeError: list indices must be integers or slices, not tuple”——如何解决

Question

I want to convert my big json file(up to 1GB) into csv then print it.My code:

f = open('C:\\Users\\non_coder\\Desktop\\datasets_fldr\\layer2.json',) 
data = json.load(f)
f.close()
df = json_normalize(data['ingredients',]) 
d_file = df.to_csv('json-to-csv.csv', sep=',', encoding='utf-8') 
print(d_file)

Then the error:

<ipython-input-23-4a2ec3b63241> in <module>
  5 f.close()
  6 
  7 ---->df = json_normalize(data['ingredients',]) #problem indicates in this line
  8 d_file = df.to_csv('json-to-csv.csv', sep=',', encoding='utf-8')
  9 print(d_file)

 TypeError: list indices must be integers or slices, not tuple.

How should I deal with this

Answer 1

f = open('C:\\Users\\non_coder\\Desktop\\datasets_fldr\\layer2.json',) 
data = json.load(f)
f.close()
df = json_normalize(data['ingredients']) # <------- delete the comma here
d_file = df.to_csv('json-to-csv.csv', sep=',', encoding='utf-8') 
print(d_file)