String Formatting (ValueError: Unknown format code 'd' for object of type 'str')-CodePudding

So I was trying to print some formated text printing the name and distance of objects in space that are close to the earth using the nasa api.

My problem is that i can't manage to get empty spaces in front of the distance, (so that they are justified right, next to the name) I tried {:25d} but thats not working and giving me the

error: print(f"Name: {name:25} Entfernung km: {distance:25d}") ValueError: Unknown format code 'd' for object of type 'str'

The python documentation example(https://docs.python.org/3/tutorial/inputoutput.html) is working without a problem.

import requests

key = "DEMO_KEY"
start_date = "2021-03-20"
end_date = "2021-03-27"
r = requests.get(f"https://api.nasa.gov/neo/rest/v1/feed?start_date={start_date}&end_date={end_date}&api_key={key}")
json = r.json()

def search_name_distance(date):
    print(date, ":\n")
    for x in range(len(json['near_earth_objects'][date])):
        name = json['near_earth_objects'][date][x]['name']
        distance = json['near_earth_objects'][date][x]['close_approach_data'][0]['miss_distance']['kilometers']
        print(f"Name: {name:25} Entfernung km: {distance:25d}")
    print("\n\n")

search_name_distance(start_date)

'''
working:
table = {'Sjoerd': 4127, 'Jack': 4098, 'Dcab': 7678}
for name, phone in table.items():
    print(f'{name:10} ==> {phone:10d}')
'''

CodePudding user response：

d is for an integer, but in your case distance is a str. So you can convert

distance = int(json['near_earth_objects'][date][x]['close_approach_data'][0]['miss_distance']['kilometers'])