如何检查嵌套抽象类的完整类型签名?在这个例子中
In [4]: from typing import Sequence
In [5]: IntSeq = Sequence[int]
In [6]: isinstance([1], IntSeq)
Out[6]: True
In [7]: isinstance([1.0], IntSeq)
Out[7]: True
我希望最后一个isinstance调用实际返回False,而它只检查参数是否为Sequence。我考虑过递归地检查类型,但是IntSeq没有存储嵌套类型的公共属性:
In [8]: dir(IntSeq)
Out[8]:
[&
我是ubuntu社区的新成员。我遇到了17.04的问题:即使在运行了大多数推荐的脚本之后,我仍然无法解决下面的错误。我能做什么?
linux-signed-image-4.10.0-33-generic : Depends: linux-image-4.10.0-33-generic (= 4.10.0-33.37) but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
我无法通过运行自动清理来清理我的磁盘空间,也不能升级,因为我一直被要求运行apt-get -f install,但是因为它不会安装完整的磁盘。自动清洗不起作用清洗不起作用。以下是我尝试运行升级时的结果:
agiles@agiles-23-1015:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to co
当我在android棉花糖上测试我的应用程序时,打开它花了很长时间,并给出了以下错误
oat location is not valid
/data/user/0/org.linux.ceylon.gpstracker/cache/slice-support-annotations-24.2.1_6ad55f12288d69ec8a892bcf9d346762fe8110c1-classes.dex
oat location is not valid /data/user/0/org.linux.ceylon.gpstracker/cache/slice-slice_9-clas
我在更新我的系统上遇到了麻烦。
更新管理器说“包系统坏了”,并尝试apt-get install -f。具体而言,它抱怨:
The following packages have unment dependencies:
linux-header-3.2.0-51-generic:Depends:linux-headers-3.2.0-51 but it is not installed.
apt-get install -f fails with:
dpkg: error processing /var/cache/apt/archives/linux-headers-3.2.0-51_
我想在requirement.txt中缓存依赖项。参见https://docs.microsoft.com/en-us/azure/devops/pipelines/release/caching?view=azure-devops#pythonpip。这是我的azure-pipelines.yml # Python package
# Create and test a Python package on multiple Python versions.
# Add steps that analyze code, save the dist with the build record,
在尝试安装lazarus free pascal之后
broken packages
E: /var/cache/apt/archives/fp-units-rtl-3.0.0_3.0.0+dfsg-2_i386.deb: trying to overwrite '/usr/lib/fpc/3.0.0/units/i386-linux/rtl/si_c21g.ppu', which is also in package fpc 3.0.0
E: /var/cache/apt/archives/fp-compiler-3.0.0_3.0.0+dfsg-2_i386.deb: tr
又是我。我试图运行以下命令:sudo apt-get remove bitcoind,但我得到了以下响应:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
linux-image-generic-hwe-16.04 :