SOLVED. print() doesnt echo in ESP8266 daily builds

[VladVons]

I didnt notice such problem in 1.9.3-XXX
in terminal 1.9.4-XXX builds there is no print output from a *.py, but in REPL everething is ok.

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#boot.py:
print('Hello') # no output

MicroPython v1.9.4-119......
>>> print('Hello') # output ok
Hello

[dhylands]

Might be related to: https://github.com/micropython/micropyt ... 290d1d4c3f

[VladVons]

How to fix it?

daily builds mostly used by developers/testers and any print information is important.
what is the reason to silent the print()?
other info functions dont work too.
micropython.mem_info() etc...

[VladVons]

Found the problem.

in earlier build versions there was not line

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uos.dupterm(machine.UART(0, 115200), 1)

i just owerrided boot.py with my edition with no uos.dupterm