@betterauto I guess the answer is NO. The Linux versions are different. You can use them for the basic language and standard file operations, but as soon as you need specific modules, they behave different. The HW specific modules are not supported at all. And if that's not enough trouble, you have the subtle differences between the micropython.org branch and the pycom.io branch. In the example you mentioned, the Linux uos module implements just a few methods. More can be found in the os module, once you install the micropython/micropython-lib. That tries to add many of the Python standard modules, but is sometimes a little bit sparse.