On Sat, 23 Feb 2019 14:56:03 +1100, Chris Angelico wrote: > On Sat, Feb 23, 2019 at 2:51 PM Frank Miles <pedicula...@mail.com> > wrote: >> >> I have a Debian/Linux machine that I just upgraded to the newer >> "testing" >> distribution. I'd done that earlier to another machine and all went >> well. With the latest machine, python2 is OK but python3 can barely >> run at all. For example: >> >> $ python3 Python 3.7.2+ (default, Feb 2 2019, 14:31:48) >> [GCC 8.2.0] on linux Type "help", "copyright", "credits" or "license" >> for more information. >> >>> help() >> Traceback (most recent call last): >> File "<stdin>", line 1, in <module> >> File "/usr/lib/python3.7/_sitebuiltins.py", line 102, in __call__ >> import pydoc >> File "/usr/lib/python3.7/pydoc.py", line 66, in <module> >> import inspect >> File "/usr/lib/python3.7/inspect.py", line 40, in <module> >> import linecache >> File "/usr/lib/python3.7/linecache.py", line 11, in <module> >> import tokenize >> File "/usr/lib/python3.7/tokenize.py", line 33, in <module> >> import re >> File "/usr/lib/python3.7/re.py", line 143, in <module> >> class RegexFlag(enum.IntFlag): >> AttributeError: module 'enum' has no attribute 'IntFlag' >> >>> >> >>> >> Question: how can I determine what has gone wrong? > > Hmm. I'd start with: > > $ which python3 $ dpkg -S `which python3` > > and from inside Python: >>>> import sys; sys.path import enum; enum.__file__ > > My best guess at the moment is that your "enum" package is actually a > compatibility shim for earlier Python versions, less functional than the > one provided by Python 3.7. You may need to *uninstall* a shim package. > But I could well be wrong, and maybe there'd be a clue in your paths. > > ChrisA
Whoopee! You nailed it! The path included /usr/local/lib/python3.7/dist-packages, which included an enum file as you suggested. The 'import enum; enum.__file__' (gonna have to look up that syntax) provided with the path to that directory. Many thanks Chris for a most helpful suggestion! -Frank -- https://mail.python.org/mailman/listinfo/python-list