Log output is not coloured in GitHub Actions #604
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enhancement
Improvement to an already existing feature
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By default, Loguru tries to automatically detect whether or not the terminal supports colors. Maybe this is a false-negative case. You can force colored output by adding you sink with |
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@Delgan Thank you, that worked eg. see this You could fix the false-negative case by detecting the environment variable: |
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Great, I will do that, thanks. 👍 Why are some logs not colored in the Github Actions output you shared, though? Is it due to |
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That script is using the standard logger and then imports another library of mine where the |
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I guess it would go here: Lines 10 to 11 in 6861648 if any(x in os.environ for x in ("PYCHARM_HOSTED", "GITHUB_ACTIONS")):
return True |
Delgan
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Jan 1, 2025
[//]: # (dependabot-start)⚠️ **Dependabot is rebasing this PR**⚠️ Rebasing might not happen immediately, so don't worry if this takes some time. Note: if you make any changes to this PR yourself, they will take precedence over the rebase. --- [//]: # (dependabot-end) Bumps [loguru](https://github.com/Delgan/loguru) from 0.6.0 to 0.7.3. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/Delgan/loguru/releases">loguru's releases</a>.</em></p> <blockquote> <h2>0.7.3</h2> <ul> <li>Fix Cython incompatibility caused by the absence of underlying stack frames, which resulted in a <code>ValueError</code> during logging (<a href="https://redirect.github.com/Delgan/loguru/issues/88">#88</a>).</li> <li>Fix possible <code>RuntimeError</code> when removing all handlers with <code>logger.remove()</code> due to thread-safety issue (<a href="https://redirect.github.com/Delgan/loguru/issues/1183">#1183</a>, thanks <a href="https://github.com/jeremyk"><code>@jeremyk</code></a>).</li> <li>Fix <code>diagnose=True</code> option of exception formatting not working as expected with Python 3.13 (<a href="https://redirect.github.com/Delgan/loguru/issues/1235">#1235</a>, thanks <a href="https://github.com/etianen"><code>@etianen</code></a>).</li> <li>Fix non-standard level names not fully compatible with <code>logging.Formatter()</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/1231">#1231</a>, thanks <a href="https://github.com/yechielb2000"><code>@yechielb2000</code></a>).</li> <li>Fix inability to display a literal <code>"\"</code> immediately before color markups (<a href="https://redirect.github.com/Delgan/loguru/issues/988">#988</a>).</li> <li>Fix possible infinite recursion when an exception is raised from a <code>__repr__</code> method decorated with <code>logger.catch()</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/1044">#1044</a>).</li> <li>Improve performance of <code>datetime</code> formatting while logging messages (<a href="https://redirect.github.com/Delgan/loguru/issues/1201">#1201</a>, thanks <a href="https://github.com/trim21"><code>@trim21</code></a>).</li> <li>Reduce startup time in the presence of installed but unused <code>IPython</code> third-party library (<a href="https://redirect.github.com/Delgan/loguru/issues/1001">#1001</a>, thanks <a href="https://github.com/zakstucke"><code>@zakstucke</code></a>).</li> </ul> <h2>0.7.2</h2> <ul> <li>Add support for formatting of <code>ExceptionGroup</code> errors (<a href="https://redirect.github.com/Delgan/loguru/issues/805">#805</a>).</li> <li>Fix possible <code>RuntimeError</code> when using <code>multiprocessing.set_start_method()</code> after importing the <code>logger</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/974">#974</a>).</li> <li>Fix formatting of possible <code>__notes__</code> attached to an <code>Exception</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/980">#980</a>).</li> </ul> <h2>0.7.1</h2> <ul> <li>Add a new <code>context</code> optional argument to <code>logger.add()</code> specifying <code>multiprocessing</code> context (like <code>"spawn"</code> or <code>"fork"</code>) to be used internally instead of the default one (<a href="https://redirect.github.com/Delgan/loguru/issues/851">#851</a>).</li> <li>Add support for true colors on Windows using ANSI/VT console when available (<a href="https://redirect.github.com/Delgan/loguru/issues/934">#934</a>, thanks <a href="https://github.com/tunaflsh"><code>@tunaflsh</code></a>).</li> <li>Fix possible deadlock when calling <code>logger.complete()</code> with concurrent logging of an asynchronous sink (<a href="https://redirect.github.com/Delgan/loguru/issues/906">#906</a>).</li> <li>Fix file possibly rotating too early or too late when re-starting an application around midnight (<a href="https://redirect.github.com/Delgan/loguru/issues/894">#894</a>).</li> <li>Fix inverted <code>"<hide>"</code> and <code>"<strike>"</code> color tags (<a href="https://redirect.github.com/Delgan/loguru/issues/943">#943</a>, thanks <a href="https://github.com/tunaflsh"><code>@tunaflsh</code></a>).</li> <li>Fix possible untraceable errors raised when logging non-unpicklable <code>Exception</code> instances while using <code>enqueue=True</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/329">#329</a>).</li> <li>Fix possible errors raised when logging non-picklable <code>Exception</code> instances while using <code>enqueue=True</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/342">#342</a>, thanks <a href="https://github.com/ncoudene"><code>@ncoudene</code></a>).</li> <li>Fix missing seconds and microseconds when formatting timezone offset that requires such accuracy (<a href="https://redirect.github.com/Delgan/loguru/issues/961">#961</a>).</li> <li>Raise <code>ValueError</code> if an attempt to use nanosecond precision for time formatting is detected (<a href="https://redirect.github.com/Delgan/loguru/issues/855">#855</a>).</li> </ul> <h2>0.7.0</h2> <ul> <li>Update <code>InterceptHandler</code> recipe to make it compatible with Python 3.11 (<a href="https://redirect.github.com/Delgan/loguru/issues/654">#654</a>).</li> <li>Add a new <code>watch</code> optional argument to file sinks in order to automatically re-create possibly deleted or changed file (<a href="https://redirect.github.com/Delgan/loguru/issues/471">#471</a>).</li> <li>Make <code>patch()</code> calls cumulative instead of overriding the possibly existing patching function (<a href="https://redirect.github.com/Delgan/loguru/issues/462">#462</a>).</li> <li>Make sinks added with <code>enqueue=True</code> and <code>catch=False</code> still process logged messages in case of internal exception (<a href="https://redirect.github.com/Delgan/loguru/issues/833">#833</a>).</li> <li>Avoid possible deadlocks caused by re-using the logger inside a sink, a signal handler or a <code>__del__</code> method. Since the logger is not re-entrant, such misuse will be detected and will now generate a <code>RuntimeError</code> (<a href="https://redirect.github.com/Delgan/loguru/issues/712">#712</a>, thanks <a href="https://github.com/jacksmith15"><code>@jacksmith15</code></a>).</li> <li>Fix file sink rotation using an aware <code>datetime.time</code> for which the timezone was ignored (<a href="https://redirect.github.com/Delgan/loguru/issues/697">#697</a>).</li> <li>Fix logs colorization not automatically enabled for Jupyter Notebook and Google Colab (<a href="https://redirect.github.com/Delgan/loguru/issues/494">#494</a>).</li> <li>Fix logs colorization not automatically enabled for Github Actions and others CI platforms (<a href="https://redirect.github.com/Delgan/loguru/issues/604">#604</a>).</li> <li>Fix <code>logger.complete()</code> possibly hanging forever when <code>enqueue=True</code> and <code>catch=False</code> if internal thread killed due to <code>Exception</code> raised by sink (<a href="https://redirect.github.com/Delgan/loguru/issues/647">#647</a>).</li> <li>Fix incompatibility with <code>freezegun</code> library used to simulate time (<a href="https://redirect.github.com/Delgan/loguru/issues/600">#600</a>).</li> <li>Raise exception if <code>logger.catch()</code> is used to wrap a class instead of a function to avoid unexpected behavior (<a href="https://redirect.github.com/Delgan/loguru/issues/623">#623</a>).</li> </ul> </blockquote> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/Delgan/loguru/blob/master/CHANGELOG.rst">loguru's changelog</a>.</em></p> <blockquote> <h1><code>0.7.3</code>_ (2024-12-06)</h1> <ul> <li>Fix Cython incompatibility caused by the absence of underlying stack frames, which resulted in a <code>ValueError</code> during logging (<code>[#88](Delgan/loguru#88) <https://github.com/Delgan/loguru/issues/88></code>_).</li> <li>Fix possible <code>RuntimeError</code> when removing all handlers with <code>logger.remove()</code> due to thread-safety issue (<code>[#1183](Delgan/loguru#1183) <https://github.com/Delgan/loguru/issues/1183></code><em>, thanks <code>@jeremyk <https://github.com/jeremyk></code></em>).</li> <li>Fix <code>diagnose=True</code> option of exception formatting not working as expected with Python 3.13 (<code>[#1235](Delgan/loguru#1235) <https://github.com/Delgan/loguru/issues/1235></code><em>, thanks <code>@etianen <https://github.com/etianen></code></em>).</li> <li>Fix non-standard level names not fully compatible with <code>logging.Formatter()</code> (<code>[#1231](Delgan/loguru#1231) <https://github.com/Delgan/loguru/issues/1231></code><em>, thanks <code>@yechielb2000 <https://github.com/yechielb2000></code></em>).</li> <li>Fix inability to display a literal <code>"\"</code> immediately before color markups (<code>[#988](Delgan/loguru#988) <https://github.com/Delgan/loguru/issues/988></code>_).</li> <li>Fix possible infinite recursion when an exception is raised from a <code>__repr__</code> method decorated with <code>logger.catch()</code> (<code>[#1044](Delgan/loguru#1044) <https://github.com/Delgan/loguru/issues/1044></code>_).</li> <li>Improve performance of <code>datetime</code> formatting while logging messages (<code>[#1201](Delgan/loguru#1201) <https://github.com/Delgan/loguru/issues/1201></code><em>, thanks <code>@trim21 <https://github.com/trim21></code></em>).</li> <li>Reduce startup time in the presence of installed but unused <code>IPython</code> third-party library (<code>[#1001](Delgan/loguru#1001) <https://github.com/Delgan/loguru/issues/1001></code><em>, thanks <code>@zakstucke <https://github.com/zakstucke></code></em>).</li> </ul> <h1><code>0.7.2</code>_ (2023-09-11)</h1> <ul> <li>Add support for formatting of <code>ExceptionGroup</code> errors (<code>[#805](Delgan/loguru#805) <https://github.com/Delgan/loguru/issues/805></code>_).</li> <li>Fix possible <code>RuntimeError</code> when using <code>multiprocessing.set_start_method()</code> after importing the <code>logger</code> (<code>[#974](Delgan/loguru#974) <https://github.com/Delgan/loguru/issues/974></code>_).</li> <li>Fix formatting of possible <code>__notes__</code> attached to an <code>Exception</code> (<code>[#980](Delgan/loguru#980) <https://github.com/Delgan/loguru/issues/980></code>_).</li> </ul> <h1><code>0.7.1</code>_ (2023-09-04)</h1> <ul> <li>Add a new <code>context</code> optional argument to <code>logger.add()</code> specifying <code>multiprocessing</code> context (like <code>"spawn"</code> or <code>"fork"</code>) to be used internally instead of the default one (<code>[#851](Delgan/loguru#851) <https://github.com/Delgan/loguru/issues/851></code>_).</li> <li>Add support for true colors on Windows using ANSI/VT console when available (<code>[#934](Delgan/loguru#934) <https://github.com/Delgan/loguru/issues/934></code><em>, thanks <code>@tunaflsh <https://github.com/tunaflsh></code></em>).</li> <li>Fix possible deadlock when calling <code>logger.complete()</code> with concurrent logging of an asynchronous sink (<code>[#906](Delgan/loguru#906) <https://github.com/Delgan/loguru/issues/906></code>_).</li> <li>Fix file possibly rotating too early or too late when re-starting an application around midnight (<code>[#894](Delgan/loguru#894) <https://github.com/Delgan/loguru/issues/894></code>_).</li> <li>Fix inverted <code>"<hide>"</code> and <code>"<strike>"</code> color tags (<code>[#943](Delgan/loguru#943) <https://github.com/Delgan/loguru/pull/943></code><em>, thanks <code>@tunaflsh <https://github.com/tunaflsh></code></em>).</li> <li>Fix possible untraceable errors raised when logging non-unpicklable <code>Exception</code> instances while using <code>enqueue=True</code> (<code>[#329](Delgan/loguru#329) <https://github.com/Delgan/loguru/issues/329></code>_).</li> <li>Fix possible errors raised when logging non-picklable <code>Exception</code> instances while using <code>enqueue=True</code> (<code>[#342](Delgan/loguru#342) <https://github.com/Delgan/loguru/issues/342></code><em>, thanks <code>@ncoudene <https://github.com/ncoudene></code></em>).</li> <li>Fix missing seconds and microseconds when formatting timezone offset that requires such accuracy (<code>[#961](Delgan/loguru#961) <https://github.com/Delgan/loguru/issues/961></code>_).</li> <li>Raise <code>ValueError</code> if an attempt to use nanosecond precision for time formatting is detected (<code>[#855](Delgan/loguru#855) <https://github.com/Delgan/loguru/issues/855></code>_).</li> </ul> <h1><code>0.7.0</code>_ (2023-04-10)</h1> <ul> <li>Update <code>InterceptHandler</code> recipe to make it compatible with Python 3.11 (<code>[#654](Delgan/loguru#654) <https://github.com/Delgan/loguru/issues/654></code>_).</li> <li>Add a new <code>watch</code> optional argument to file sinks in order to automatically re-create possibly deleted or changed file (<code>[#471](Delgan/loguru#471) <https://github.com/Delgan/loguru/issues/471></code>_).</li> <li>Make <code>patch()</code> calls cumulative instead of overriding the possibly existing patching function (<code>[#462](Delgan/loguru#462) <https://github.com/Delgan/loguru/issues/462></code>_).</li> <li>Make sinks added with <code>enqueue=True</code> and <code>catch=False</code> still process logged messages in case of internal exception (<code>[#833](Delgan/loguru#833) <https://github.com/Delgan/loguru/issues/833></code>_).</li> <li>Avoid possible deadlocks caused by re-using the logger inside a sink, a signal handler or a <code>__del__</code> method. Since the logger is not re-entrant, such misuse will be detected and will now generate a <code>RuntimeError</code> (<code>[#712](Delgan/loguru#712) <https://github.com/Delgan/loguru/issues/712></code><em>, thanks <code>@jacksmith15 <https://github.com/jacksmith15></code></em>).</li> <li>Fix file sink rotation using an aware <code>datetime.time</code> for which the timezone was ignored (<code>[#697](Delgan/loguru#697) <https://github.com/Delgan/loguru/issues/697></code>_).</li> <li>Fix logs colorization not automatically enabled for Jupyter Notebook and Google Colab (<code>[#494](Delgan/loguru#494) <https://github.com/Delgan/loguru/issues/494></code>_).</li> <li>Fix logs colorization not automatically enabled for Github Actions and others CI platforms (<code>[#604](Delgan/loguru#604) <https://github.com/Delgan/loguru/issues/604></code>_).</li> <li>Fix <code>logger.complete()</code> possibly hanging forever when <code>enqueue=True</code> and <code>catch=False</code> if internal thread killed due to <code>Exception</code> raised by sink (<code>[#647](Delgan/loguru#647) <https://github.com/Delgan/loguru/issues/647></code>_).</li> <li>Fix incompatibility with <code>freezegun</code> library used to simulate time (<code>[#600](Delgan/loguru#600) <https://github.com/Delgan/loguru/issues/600></code>_).</li> <li>Raise exception if <code>logger.catch()</code> is used to wrap a class instead of a function to avoid unexpected behavior (<code>[#623](Delgan/loguru#623) <https://github.com/Delgan/loguru/issues/623></code>_).</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/Delgan/loguru/commit/ae3bfd1b85b6b4a3db535f69b975687c79498be4"><code>ae3bfd1</code></a> Bump version to 0.7.3</li> <li><a href="https://github.com/Delgan/loguru/commit/ccca3566cc00c22eed8659705e45386fa2101b5d"><code>ccca356</code></a> Replace "notifiers" (seems unmaintained) with "apprise" in docs (<a href="https://redirect.github.com/Delgan/loguru/issues/1251">#1251</a>)</li> <li><a href="https://github.com/Delgan/loguru/commit/a372814bf79d47628e66ca9a91072f53fba032f8"><code>a372814</code></a> Configure "trusted publishing" in Github workflow</li> <li><a href="https://github.com/Delgan/loguru/commit/633016db07e5dff63bc05dd3c4d5aa81b6190700"><code>633016d</code></a> Use tox to define the "release" command</li> <li><a href="https://github.com/Delgan/loguru/commit/ef12cbbaf54fb2e64ca66b0a90675cdf9e8a522f"><code>ef12cbb</code></a> Convert README from RST to MD (fix PyPI packaging)</li> <li><a href="https://github.com/Delgan/loguru/commit/cb3314a5af107ad175a9bafa11b1b79670e3067a"><code>cb3314a</code></a> Add Github action to verify packaging</li> <li><a href="https://github.com/Delgan/loguru/commit/6161a13b79e1a3a29e922926b44f26edbcc3c06a"><code>6161a13</code></a> Complete the "Troubleshooting" docs with more examples</li> <li><a href="https://github.com/Delgan/loguru/commit/7f5001fe46393627ced287bba2c4064442c3fd25"><code>7f5001f</code></a> Simplify the example of dynamic handler level</li> <li><a href="https://github.com/Delgan/loguru/commit/2e0cd7bb5105461057c56aefb225da569882ad29"><code>2e0cd7b</code></a> Move "Introduction to logging" docs to a new section</li> <li><a href="https://github.com/Delgan/loguru/commit/72b93d1a24d1491ce7ba752fe36c14f9570a5d63"><code>72b93d1</code></a> Correct outdated instructions for reporting a vulnerability</li> <li>Additional commits viewable in <a href="https://github.com/Delgan/loguru/compare/0.6.0...0.7.3">compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. 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I have found that log output is coloured when running locally but not when running through GitHub Actions. Is there something I need to do to get colour in GitHub Actions?
I noticed in a comment here: https://stackoverflow.com/questions/64111780/python-based-colored-logging-in-github-runner-with-ubuntu-latest that "humanfriendly.terminal.terminal_supports_colors actually returns False on the github runner (ubuntu-latest)". Could that be the problem?
GitHub Actions does support colour eg. from another logger:
https://github.com/OCHA-DAP/hdx-scraper-covid-viz/runs/5296688697?check_suite_focus=true
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