Gentoo：无法将python_targets_python3_7添加到pip出现

Question

我无法将python_targets_python3_7添加到我的点子中。

我已将其添加到/etc/portage/package.use/dev-python

cat /etc/portage/package.use/dev-python 
dev-python/pip python_targets_python3_7 PYTHON_TARGETS: python3_7

根据此https://unix.stackexchange.com/questions/320313/python3-5-in-python-targets-not-working-in-gentoo，我还将以下内容添加到/etc/portage/profile/use.stable.mask

cat /etc/portage/use.stable.mask 
-python_targets_pyton3_7
-python_single_target_python3_7

不幸的是，这不会导致在紧急情况下使用该标志

emerge -av dev-python/pip

 * IMPORTANT: 1 news items need reading for repository 'gentoo'.
 * Use eselect news read to view new items.


These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N     ] dev-python/pip-19.3.1-r1::gentoo  USE="-test -vanilla" PYTHON_TARGETS="python2_7 python3_6 (-pypy3) (-python3_7)" 0 KiB

Total: 1 package (1 new), Size of downloads: 0 KiB

Would you like to merge these packages? [Yes/No] N

Quitting.

根据https://packages.gentoo.org/useflags/python_targets_python3_7 pip与python 3.7兼容。

非常感谢您的帮助。

Answer 1

答案是两个部分。

此问题在紧急手册页中被描述为从顶部​​开始的第四个符号：

Symbol  Location    Meaning

-   prefix  not enabled (either disabled or removed)
*   suffix  transition to or from the enabled state
%   suffix  newly added or removed
()  circumfix   forced, masked, or removed
{}  circumfix   state is bound to FEATURES settings

要消除此限制，您必须使用在https://forums.gentoo.org/viewtopic-t-1068102.html中找到的解决方案。我已经为python3_7更新了以下命令。

echo "dev-python/pip -python_targets_python3_7" >> /etc/portage/profile/package.use.mask

然后将python目标添加到构建中：

echo "dev-python/pip python_targets_python3_7" >> /etc/portage/package.use/dev-python