first commit

deafrica_tools/__init__.py

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+__locales__ = __path__[0] + '/locales'
+
+
+def set_lang(lang=None):
+    if lang is None:
+        import os
+        os_lang = os.getenv('LANG')
+        
+        # Just take the first 2 letters: 'fr' not 'fr_FR.UTF-8'
+        if os_lang is not None and len(os_lang) >=2:
+            lang = [os_lang[:2]]
+    else:
+        lang = [lang]
+    
+    import gettext
+    try:
+        translation = gettext.translation(
+            'deafrica_tools', 
+            localedir=__locales__, 
+            languages=lang,
+            fallback=True
+        )
+        translation.install()
+        
+    except FileNotFoundError:
+        print(f'Could not load lang={lang}')