module

PyOs

Class methods

environ

os.environ : Does not match python behavior whereby a missing key will cause an error

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find_subdir_tree(dir)

Similar to a unix find, but only gets the directory and subdirectories

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getenv(arg)

os.getenv

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walk(dir)

Should be equivalent of python os.walk function. Note that we create a new Dir.find_subdir_tree since Crystal has no builtin equivalent of a Unix find.

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