Issues

• [Chapter 3] missing.py doctest failure after python 3.12 (UserDict)

  fluentpython/example-code-2e#73 · Filter by author dyp1109 opened on Jul 28, 2026

• [Chapter 20] - Some youtube links point to videos that are not long available

  fluentpython/example-code-2e#72 · Filter by author aserrano-sunnic opened on Jun 21, 2026

• [Example 20-8][demo_executor_map.py] Race condition bug in display function

  fluentpython/example-code-2e#68 · Filter by author Kristiyan-Ivanov opened on May 2, 2026

• Chapter 21 - tcp_mojifinder.py crashes on empty search result

  fluentpython/example-code-2e#61 · Filter by author timheiko opened on Aug 8, 2025
  2

• Review and cite post about finally gotchas

  3e-prep
  fluentpython/example-code-2e#49 · Filter by author ramalho opened on Nov 20, 2024

• Suggestion: Add small clarification on Chapter 22, Example 22-5. explore1.py

  fluentpython/example-code-2e#48 · Filter by author andyLaurito92 opened on Oct 31, 2024

• Problem with make function on page 843

  fluentpython/example-code-2e#47 · Filter by author kamalfarahani opened on Oct 30, 2024

• Side effect of FrozenJSON.__getattr__ not raising KeyError

  fluentpython/example-code-2e#46 · Filter by author hayemj opened on Jul 17, 2024

• Suggestion: Add more examples for “Type Hinting Asynchronous Objects” section in chapter 21

  fluentpython/example-code-2e#44 · Filter by author kamalfarahani opened on May 5, 2024

• concurrency examples

  fluentpython/example-code-2e#43 · Filter by author amirreza-sf80 opened on Apr 10, 2024
  1

• Typing for metaclass examples

  fluentpython/example-code-2e#42 · Filter by author jsrozner opened on Apr 5, 2024
  2

• Typo on page 745

  fluentpython/example-code-2e#41 · Filter by author kamalfarahani opened on Apr 4, 2024

• Why using synchronous get in flags_asyncio.py

  fluentpython/example-code-2e#40 · Filter by author ngokchaoho opened on Dec 13, 2023

• Doubt in spinner_async.py example

  fluentpython/example-code-2e#37 · Filter by author CarMoreno opened on Aug 7, 2023
  1

• Bug in flags2_asyncio.py (and flags3_asyncio.py) reporting

  fluentpython/example-code-2e#32 · Filter by author jgc31 opened on Dec 20, 2022

• The code checked_demo.py in Chapter 24 has TypeError: 'title' type hint must be callable?

  fluentpython/example-code-2e#30 · Filter by author danli349 opened on Nov 29, 2022
  2