Most likely your 'args' module is calling import with a bytes object and not a string and that it's getting that far into the process before you hit code that only works with strings (_os.listdir() returns bytes if you pass a bytes argument to it).
At this point I would take the question to python-list or python-tutor to get more help with embedding. On Fri, 6 Apr 2018 at 10:29 Chris Bryan <cbr...@rapitasystems.com> wrote: > Hello list, > > I am embedding a python 3.6 environment in another executable, which is > compiling and executing ok. However I get an error on Windows when I try > to import any module except sys: > > Traceback (most recent call last): > File "args", line 1, in <module> > File "<frozen importlib._bootstrap>", line 971, in _find_and_load > File "<frozen importlib._bootstrap>", line 951, in > _find_and_load_unlocked > File "<frozen importlib._bootstrap>", line 894, in _find_spec > File "<frozen importlib._bootstrap_external>", line 1157, in find_spec > File "<frozen importlib._bootstrap_external>", line 1129, in _get_spec > File "<frozen importlib._bootstrap_external>", line 1245, in find_spec > File "<frozen importlib._bootstrap_external>", line 1302, in _fill_cache > TypeError: a bytes-like object is required, not 'str' > > Looking on line 1302, it would appear that the call to _os.listdir() > (line 1285) is returning a list of byte objects. I can confirm that I > get the same error doing the following from a normal python interactive > session: > > >>> x = b'a.b.c' > >>> x.partition('.') > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > TypeError: a bytes-like object is required, not 'str' > > Is this a bug in the bootstrap module, or am I doing something wrong > which is causing listdir() to return bytes? > > Chris > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/brett%40python.org >
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