Parse the whole feed
In "Parse a telemetry line" you split one reading into its fields. The ground station receives the feed as one block of text, one reading per line, and a parser has to handle every line the same way.
Loop over the lines, split each one, and print what the flight controllers need.
Finish stage 1 to unlock this stage.
Go through the feed line by line, split each line at the commas, and print the sensor, the value and the unit:
ENG-2: 412.5 C TANK-1: 78.3 % CABIN: 101.2 kPa ENG-2: 415.0 C
feed.splitlines() gives a list with one string per line. Inside the loop, line.split(",") gives the four fields, as in "Parse a telemetry line".
Finish stage 1 to unlock this stage.
Unpack the four fields into names, as in "Manifest line", and start each line with the clock time from the timestamp:
09:30:05 ENG-2: 412.5 C 09:30:05 TANK-1: 78.3 % 09:30:10 CABIN: 101.2 kPa 09:30:10 ENG-2: 415.0 C
timestamp, sensor, value, unit = line.split(",") names the fields. The clock time is characters 11 to 18 of the timestamp: timestamp[11:19].
Hints
For Loop Basics
# A for loop visits every item in a collection, one at a time
cargo = ["water", "food", "spare parts", "experiments"]
for item in cargo:
print("Loading:", item)
print("Hold sealed")
# The loop body can do real work, not just print
masses_kg = [820, 640, 310, 175]
total = 0
for mass in masses_kg:
total = total + mass
print("Total cargo:", total, "kg")
# A tuple of pairs unpacks straight into two variables
manifest = (("water", 820), ("food", 640), ("experiments", 175))
for name, mass in manifest:
print(f"{name}: {mass} kg")
# A string is a collection too, one character at a time
for letter in "CYGNUS":
print(letter, end=" ")
print()
# A set works as well, but the order is never promised
for module in {"Unity", "Harmony", "Destiny"}:
print("Docking check:", module)
Separate arguments with commas. They're passed on every Run as sys.argv[1:].