Lesson 2 of 12 · 9 min · 2 hands-on steps
Numbers, Strings & f-strings
Math, text methods and Python's favorite way to build strings.
Python math
Strings
f-strings: the Pythonic way to build text
Put an f before the quote and drop values in with { }:
Watch Python run it
Click Next ▶ to step through. Watch each variable appear in memory:
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🧪 Practice: 2 steps
0 / 2 doneStep 1 of 2 · Hours and minutes
total_minutes is 135. Use // (whole-number division) and % (remainder) to print exactly:
2 hours and 15 minutes
Output appears here. Press Run or Ctrl/⌘ + Enter.
Step 2 of 2 · Clean up a name
Write clean_name(raw) that removes extra spaces at the start and end and capitalizes each word, so " ada lovelace " becomes "Ada Lovelace".
Output appears here. Press Run or Ctrl/⌘ + Enter.
✅ Check your understanding
What is 7 // 2 in Python?
What does f"{2 + 3} apples" produce?
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