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MicroPython libraries
=====================
+.. warning::
+
+ Important summary of this section
+
+ * MicroPython implements a subset of Python functionality for each module.
+ * To ease extensibility, MicroPython versions of standard Python modules
+ usually have ``u`` (micro) prefix.
+ * Any particular MicroPython variant or port may miss any feature/function
+ described in this general documentation, due to resource constraints.
+
+
This chapter describes modules (function and class libraries) which are built
into MicroPython. There are a few categories of modules: