chore: clean repository history

kb/python-course-kb-practical-python/wiki/exercises/2-12-formatting-challenge.md

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+---
+id: practical-python-2.12
+source_exercise_id: "2.12"
+title: "Formatting Challenge"
+section: "2.3 Formatting"
+source_path: "02_Working_with_data/03_Formatting.md"
+source_repo: "https://github.com/dabeaz-course/practical-python"
+source_commit: "93dca856b41c61a0a0f85ae334116e4c125629ea"
+student_visible_solution: false
+has_private_solution: false
+skip: false
+---
+
+# Exercise 2.12: Formatting Challenge
+
+> Source: Practical Python Programming, `02_Working_with_data/03_Formatting.md`.
+
+### Exercise 2.12: Formatting Challenge
+
+How would you modify your code so that the price includes the currency symbol ($) and the output looks like this:
+
+```
+      Name     Shares      Price     Change
+---------- ---------- ---------- ----------
+        AA        100      $9.22     -22.98
+       IBM         50    $106.28      15.18
+       CAT        150     $35.46     -47.98
+      MSFT        200     $20.89     -30.34
+        GE         95     $13.48     -26.89
+      MSFT         50     $20.89     -44.21
+       IBM        100    $106.28      35.84
+```
+
+[Contents](../Contents.md) \| [Previous (2.2 Containers)](02_Containers.md) \| [Next (2.4 Sequences)](04_Sequences.md)
+
+## 关联来源
+
+- [[summaries/03_Formatting]]