On 2021-03-07, Marco Atzeri via Cygwin wrote:
> Mercurial has been just updated to version 5.7
> https://cygwin.com/packages/summary/mercurial.html
>
> and it now depends on python3.8
Just updated:
$ grep mercurial /var/log/setup.log.full
Installing file
cygfile:///usr/lib/python3.8/site-packages/mercurial-5.7-py3.8.egg-info
and had a problem:
$ hg status
Traceback (most recent call last):
File "/usr/bin/hg", line 59, in <module>
dispatch.run()
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 157, in __getattr__
self._load()
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 97, in _load
_origimport, head, globals, locals, None, level
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 44, in _hgextimport
return importfunc(name, globals, *args, **kwargs)
File "/usr/lib/python3.8/site-packages/mercurial/dispatch.py", line 21, in
<module>
from .i18n import _
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 257, in _demandimport
_origimport, name, globals, locals, level=level
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 44, in _hgextimport
return importfunc(name, globals, *args, **kwargs)
File "/usr/lib/python3.8/site-packages/mercurial/i18n.py", line 15, in
<module>
from .pycompat import getattr
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 257, in _demandimport
_origimport, name, globals, locals, level=level
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 44, in _hgextimport
return importfunc(name, globals, *args, **kwargs)
File "/usr/lib/python3.8/site-packages/mercurial/pycompat.py", line 38, in
<module>
from .thirdparty.concurrent import futures
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 257, in _demandimport
_origimport, name, globals, locals, level=level
File "/usr/lib/python3.8/site-packages/hgdemandimport/demandimportpy2.py",
line 44, in _hgextimport
return importfunc(name, globals, *args, **kwargs)
ImportError: No module named concurrent
Fixed with:
bash# update-alternatives --config python
There are 3 programs which provide 'python'.
Selection Command
-----------------------------------------------
+ 1 /usr/bin/python2.7
2 /usr/bin/python3.6
* 3 /usr/bin/python3.8
Enter to keep the current selection[+], or type selection number: 3
That would be avoided (or problem delayed until impacted another utility) if
/usr/bin/hg had shebang /usr/bin/python3 instead of /usr/bin/python.
Thx for stabilizing Mercurial!
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