This page (revision-21) was last changed on 2025-07-30 13:27 by Murray Altheim

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Micro Python Tutorial Exercise 01
MicroPythonTutorialExercise01

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%%info
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%%
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The file {{main.py}} is special in MicroPython, in the sense that when you power-on the device and/or press the reset button, the main.py file is executed.
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The file (also sometimes called a "script") named {{main.py}} is special in MicroPython, in the sense that when you power-on the device and/or press the reset button, the contents of the {{main.py}} file are passed to the MicroPython interpreter and the program contained within main.py is executed. It's the ''entry point'' for running any application in Python.
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%%python \\# this is a comment
%%python
\\# this is a comment
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print("hello again.") # you can use single or double quotes
print("hello again.")
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__See also:__ [The REPL|MicroPythonTutorialTheREPL]
!! The REPL
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__REPL__ stands for ''Read, Evaluate, Print, Loop''. The REPL is how you interact with the Python Interpreter.
Unlike running a file containing Python code, in the REPL you can type commands and instantly see the output
printed out. You can also use the REPL to print out help for methods and objects in Python, list out what
methods are available, and much more.
We'll use the REPL to execute our main.py program. Depending on how you are using Python, you can access the REPL
on a command line, using a command line application (like mpremote or rshell), or within the user interface of a
Python IDE (Integrated Development Environment) like Thonny.
No matter how you get access to the REPL, once you see its command line you can type commands, hitting {{{RETURN}}}
to execute them.
On Linux or the Terminal in Mac OS:
%%repl {{{
► python3
Python 3.10.12 (main, May 27 2025, 17:12:29) [GCC 11.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> print('hello.')
hello.
>>>
}}} %%
Or using rshell, let's execute our main.py script:
%%repl {{{
/pyboard> repl
Entering REPL. Use Control-X to exit.
>
MicroPython v1.25.0 on 2025-04-15; Raspberry Pi Pico with RP2040
Type "help()" for more information.
>>>
>>> import main
hello world.
hello again.
>>>
}}} %%
This page (revision-21) was last changed on 2025-07-30 13:27 by Murray AltheimTop