Otherwise something like bytes(abc=123) will succeed.

This optimises (in speed and code size) for the common case where the
binary op for the bool object is supported.  Unsupported binary ops
still behave the same.

Function annotations are only needed when the native emitter is enabled
and when the current scope is emitted in viper mode.  All other times
the annotations can be skipped completely.

Fetch the current usb mode and return a string representation when
pyb.usb_mode() is called with no args. The possible string values are interned
as qstr's. None will be returned if an incorrect mode is set.

Gets rid of redundant double check for string type.

Also remove obsolete declaration of mp_obj_str_get_hash.

By issuing a warning that exception chaining is not supported, and ignoring
"from Y" argument.

This may be a bit confusing, as ENOENT is often rendered as "No such
file or directory", but any other code would be only more confusing.

Linking against local libffi (and other libs in future) is triggered by
"make MICROPY_STANDALONE=1". Before that, dependent libs should be built
with "make deplibs".

These tests are intended to improve coverage and provide a record of
behaviour that's either not implemented or non-compliant to CPython.

Which are currently intermixed with real scripts and spread around various
dirs.

Just dependent micropython-lib modules update for upip, no new
functionality.

Was KeyError, should be ValueError.

If byteorder of MicroPython under test and host CPython differ.

Indeed, this flag efectively selects architecture target, and must
consistently apply to all compiles and links, including 3rd-party
libraries, unlike CFLAGS, which have MicroPython-specific setting.

Some libc's may implement tgammaf as a header macro using tgamma(), so
don't assume it'll be in the library.

Latest Arch Linux doesn't have libm.so as a proper shared object and so
we need to load libm.so.6.