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logging-with-python.html

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  3. <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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  4. <title>2.3.7.1. Logging With Python</title>
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  7. <link rel="home" href="index.html" title="The Yocto Project Reference Manual">
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  8. <link rel="up" href="recipe-logging-mechanisms.html" title="2.3.7. Recipe Logging Mechanisms">
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  10. <link rel="next" href="logging-with-bash.html" title="2.3.7.2. Logging With Bash">
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  12. <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="section" title="2.3.7.1. Logging With Python">
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  13. <div class="titlepage"><div><div><h4 class="title">
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  14. <a name="logging-with-python"></a>2.3.7.1. Logging With Python</h4></div></div></div>
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  15. <p>
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  16.                 When creating recipes using Python and inserting code that handles build logs
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  17.                 keep in mind the goal is to have informative logs while keeping the console as 
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  18.                 "silent" as possible. 
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  19.                 Also, if you want status messages in the log use the "debug" loglevel.
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  20.             </p>
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  21. <p>
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  22.                 Following is an example written in Python.
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  23.                 The code handles logging for a function that determines the number of tasks 
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  24.                 needed to be run:
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  25.                 </p>
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  26. <pre class="literallayout">
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  27.      python do_listtasks() {
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  28.          bb.debug(2, "Starting to figure out the task list")
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  29.          if noteworthy_condition:
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  30.              bb.note("There are 47 tasks to run")
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  31.          bb.debug(2, "Got to point xyz")
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  32.          if warning_trigger:
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  33.              bb.warn("Detected warning_trigger, this might be a problem later.")
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  34.          if recoverable_error:
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  35.              bb.error("Hit recoverable_error, you really need to fix this!")
    36. 

  36.          if fatal_error:
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  37.              bb.fatal("fatal_error detected, unable to print the task list")
    38. 

  38.          bb.plain("The tasks present are abc")
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  39.          bb.debug(2, "Finished figuring out the tasklist")
    40. 

  40.      }
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  41.                 </pre>
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  42. <p>
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  43.             </p>
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  44. </div></body>
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  45. </html>
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