Go launches only

Write the codeEasy 2 stages

The launch list from the API mixes launches that are cleared to fly with ones still waiting for a date, a payload or the weather. The public board highlights only the launches that are Go.

Filter the list by status, then add a line for everything that is still waiting.

Print only the launches whose status is Go, with their provider:

Lumen-3 (JAXA)
Tern-5 (ISRO)
Aurora Relay 2 (JAXA)

Loop over the launches and compare launch["status"] with "Go".

Show the Go launches

Works for any list

Finish stage 1 to unlock this stage.

Collect the launches that aren't Go, each with its status, and print them on one line after the Go launches, or none:

Lumen-3 (JAXA)
Tern-5 (ISRO)
Aurora Relay 2 (JAXA)
Not go yet: Kestrel-7 (TBD), Polaris Cargo 4 (Hold)

Build a list in the else branch, then join it after the loop.

List the waiting launches

Works for any list

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Hints

Iterating Over Dictionary

iterating-over-dictionary.py

# How long a single day lasts on each planet, measured in Earth hours
day_hours = {
    "Mercury": 1408,
    "Venus": 5832,
    "Earth": 24,
    "Mars": 24.6,
    "Jupiter": 9.9,
}

# A plain for loop walks the keys
for planet in day_hours:
    print("Planet:", planet)

# .values() walks the values instead
total = 0
for hours in day_hours.values():
    total = total + hours
print("All five days added together:", total, "hours")

# .items() hands you the key and the value at the same time
for planet, hours in day_hours.items():
    print(f"{planet}: one day is {round(hours / 24, 2)} Earth days")

# sorted() walks the same keys in a different order
for planet in sorted(day_hours):
    print(planet, "->", day_hours[planet], "hours")

Open the full example

script.py

PythonLn 1, Col 1Spaces: 4

Loading the Python environment…

Command-line arguments (sys.argv)

Separate arguments with commas. They're passed on every Run as sys.argv[1:].