9. Timeout a function in python

   You can use signals and a context manager to acheive this. The idea is to register a function that will raise an exeption when the alarm signal is received and schedule the alarm signal for the timeout.

   import signal
   from contextlib import contextmanager
   
   
   @contextmanager
   def timeout(time):
       # Register a function …

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10. Some tips for django

    Sommaire

    • View last executed query
    • Logging
      • Queries
    • Migrations
      • Checks
      • Fake all pending migrations
    • Model proxies
    • Easily increment migrations numbers
    • Create a widget with custom display
    • Use a nginx reverse proxy in dev
    • Checking PO files
    • Testing
      • Inserting pytest fixtures in a test case
      • Reset PK sequence
      • Reset factoryboy sequence

    View …

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11. JavaScript tips

    Sommaire

    • Normalize an UTF-8 string

    Normalize an UTF-8 string

    Rely on String.prototype.normalize().

    const str = "Crème Brulée"
    str.normalize('NFD').replace(/[\u0300-\u036f]/g, "")
    > 'Creme Brulee'
    

    Source: https://stackoverflow.com/questions/990904/remove-accents-diacritics-in-a-string-in-javascript/37511463#37511463

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12. PostgreSQL tips

    Sommaire

    • Update fields in JSONB format
    • CSV export/import
    • Update rows in bulks
    • Understand lock issues
    • Use variables in query
    • Database sizes

    Update fields in JSONB format

    Use the jsonb_set(COLUMN_NAME, PATH_TO_CHANGE, VALUE) function. The value must be a valid value in JSON (ie use '500' for numbers, 'true' for …

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13. How to cache Python module in Gitlab CI

    By default, pip cache will be in ~/.pip. However, this folder cannot be cached by Gitlab. The trick is to force pip to use a folder located in the build directory with the --cache-dir option. You can then cache this folder.

    For instance, you can use .pip as in the …

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14. nginx tips

    CORS for multiple domains

    location ~* \.(?:ttf|ttc|otf|eot|woff|woff2)$ {
        if ( $http_origin ~* (https?://(.+\.)?(domain1|domain2|domain3)\.(?:me|co|com)$) ) {
            add_header "Access-Control-Allow-Origin" "$http_origin";
        }
    }
    

    Source: https://stackoverflow.com/a/27879729/3900519

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15. Chiffrer des fichiers avec GPG

    Voici deux fonctions bash qui permettent de chiffrer et déchiffrer un fichier ou un dossier avec GPG.

    Les dossiers sont compressés dans une archive ZIP avant le chiffrement.

    Le chiffrement laisse les fichiers d'origine intacts. Le déchiffrement laisse le fichier chiffré intact.

    Ces fonctions auront leur place dans votre .bashrc …

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16. Extraire le HTML d'un email au format mbox

    Voici un petit script Python pour convertir un mail au format mbox en HTML. Pour que le script fonctionne, il faut soit que le corps du message soit du HTML (recommandé) soit que la première pièce jointe du message contienne le message en HTML.

    Par défaut, le script traitera tous …

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17. Docker compose tips

    For my tips about docker, go here.

    Sommaire

    • Use docker-compose.override.yml

    Use docker-compose.override.yml

    As describe here, if you create a docker-compose.override.yml next to your docker-compose.yml, you can override or add values to the docker file. This file is loaded by default. To ignore it …

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18. Create python virtual enviroments on Windows

    1. Before creating the venv you will need to open a PowerShell terminal as root and run the commands below to allow the script that activates the virtual env to run:

       cd ..
       Set-ExecutionPolicy Unrestricted
       

    2. Create the venv. Run in a terminal as a normal user: python3 -m venv .venv If the …

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