QUERY · ISSUE
f presentation type is not rounding
needs-info
In MicroPython (tested with version 1.9.3) the f presentation type (as in "{:.0f}".format(x)) is not rounding floating point numbers as CPython (tested with 3.7.2) does. Actually I'm not sure what it really does. It is not rounding, not flooring and not truncating as the following examples show:
print("{:.0f}".format(100.0))
CPython: >>> 100
MicroPython: >>> 100
print("{:.0f}".format(100.9))
CPython: >>> 101
MicroPython: >>> 100
print("{:.0f}".format(101.0))
CPython: >>> 101
MicroPython: >>> 100
print("{:.0f}".format(99.5))
CPython: >>> 100
MicroPython: >>> 99
print("{:.0f}".format(99.6))
CPython: >>> 100
MicroPython: >>> 100
CANDIDATE · PULL REQUEST
tests: remove working cpydiff for float rounding
docstests
Summary
In #17444 float formatting was improved, which made tests/cpydiff/types_float_rounding.py now behave the same in MicroPython as in CPython.
But the CI did not pick this up. So tweak the workflow and delete that cpydiff test.
Testing
To be tested by CI.