Python List Loops, Print Satellite Names according to Number Enetered after Comma

Sheharyar Bhatti 0
Viewed 33

UserInput: (“LANDSAT8,5,MODIS,3,SENTINAL2,6”). User entered three satellites name and instruct the program that how many images of that particular satellite should be downloaded. In this example, there are three pairs;

  1. LANDSAT8,5
  2. MODIS,3
  3. SENTINAL2,6

Preferred Output should be like:

Program Output: LANDSAT8 image 1 downloaded LANDSAT8 image 2 downloaded LANDSAT8 image 3 downloaded LANDSAT8 image 4 downloaded LANDSAT8 image 5 downloaded MODIS image 1 downloaded MODIS image 2 downloaded MODIS image 3 downloaded SENTINAL2 image 1 downloaded SENTINAL2 image 2 downloaded SENTINAL2 image 3 downloaded SENTINAL2 image 4 downloaded SENTINAL2 image 5 downloaded SENTINAL2 image 6 downloaded

list loops python
4 Answers
UserInput="LANDSAT8,5,MODIS,3,SENTINAL2,6"
numbers=[]
names=[]
for keyword in UserInput.split(","):
    if keyword.isdigit():
        numbers.append(keyword)
    else:
        names.append(keyword)

for i in range(len(names)):
    temp=numbers[i]
    for j in range(int(temp)):
        print(names[i],"image "+str(j)+" downloaded",end=" ")
Adan Nazir0

Overview

you need to get input, split the input on a , comma, and then zip them into pairs, then generate your output text and then you can print or do whatever you want with the output array, each element in the output array is a string. using
{x} image {y} downloaded as the format

Code

def pairwise(iterable):
    "s -> (s0, s1), (s2, s3), (s4, s5), ..."
    a = iter(iterable)
    return zip(a, a)

user_input = input("enter satelites: ")

splitted = user_input.split(',')

output = []
for x, y in pairwise(splitted):
    output.append(f"{x} image {y} downloaded");

for x in output: # Do your downloading stuff 
    print(x)

Output (usage)

enter image description here

Dean Van Greunen0 
inp = input()

words = inp.split(sep=",")

satellites = {}
i = 0
while i < len(words):
    satellites[words[i]] = int(words[i + 1])
    i += 2

for key, value in satellites.items():
    for i in range(1, value + 1):
        print(f"{key} image {i} downloaded")
George Muscat0

I think this may be what you're trying to do:

user_input = "LANDSAT8,5,MODIS,3,SENTINAL2,6"

tokens = user_input.split(',')

for s, d in zip(tokens[::2], map(int, tokens[1::2])):
    for i in range(d):
        print(f'{s} image {i+1} downloaded')

Output:

LANDSAT8 image 1 downloaded
LANDSAT8 image 2 downloaded
LANDSAT8 image 3 downloaded
LANDSAT8 image 4 downloaded
LANDSAT8 image 5 downloaded
MODIS image 1 downloaded
MODIS image 2 downloaded
MODIS image 3 downloaded
SENTINAL2 image 1 downloaded
SENTINAL2 image 2 downloaded
SENTINAL2 image 3 downloaded
SENTINAL2 image 4 downloaded
SENTINAL2 image 5 downloaded
SENTINAL2 image 6 downloaded
Vlad0
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