谁能解释一下这些python字典是如何列出内存中存储的变量的。我知道在 python 中内存管理是使用堆和堆栈完成的。但是我真的找不到关于创建字典变量时如何分配内存的简单解释，它是在堆栈帧还是堆空间中创建的？
我有一个在 Linux 服务器上运行的旧版 ruby 守护程序脚本。在升级实例中的所有 ruby 和 gem 包版本时，守护程序脚本现在出错。我在 irb 中遇到同样的错误
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/home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml/parser.rb:74:in `set_default_engine': Unable to find a compatible xml library. Ensure that you have installed or added to your Gemfile one of ox, oga, libxml, nokogiri or rexml (RuntimeError)
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml/parser.rb:96:in `<class:Parser>'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml/parser.rb:7:in `<module:Xml>'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml/parser.rb:5:in `<module:Aws>'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml/parser.rb:3:in `<top (required)>'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml.rb:8:in `require_relative'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core/xml.rb:8:in `<top (required)>'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core.rb:68:in `require_relative'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-core-3.121.0/lib/aws-sdk-core.rb:68:in `<top (required)>'
from <internal:/usr/share/rubygems/rubygems/core_ext/kernel_require.rb>:85:in `require'
from <internal:/usr/share/rubygems/rubygems/core_ext/kernel_require.rb>:85:in `require'
from /home/ec2-user/.local/share/gem/ruby/gems/aws-sdk-kms-1.48.0/lib/aws-sdk-kms.rb:11:in `<top (required)>'
from <internal:/usr/share/rubygems/rubygems/core_ext/kernel_require.rb>:85:in `require' …