Ruby 为什么我的pry byebug包在命令执行某些错误时会给出如此多的输出？

我最近安装了gem

pry byebug

，当时我注意到它至少需要Ruby 2.4版才能正常工作。因此，我使用

rvm

更新了我的Ruby，然后安装了gems

pry

和

pry-byebug

。一切都很顺利。我开始编写一些代码，并使用

binding.pry

设置一些断点

但是现在，当我调试时，我必须处理大量的输出，这些输出表面上是

pry byebug

的代码库，这使得我的调试过程变得更加混乱，因为我必须通过所有这些冗余输出来确定问题所在

例如，假设我在代码中实例化了一些对象的部分设置了一个

binding.pry

断点

casting1= {'movie_name'=> 'The Room, 'star_name'=> 'Tommy Wiseau', 'star_fee'=>20000}
casting2= {'movie_name'=> 'Come and See', 'star_name'=> 'Aleksei Kravchenko', 'star_fee'=>1000}
casting_object1= Casting.new(casting1)
casting_object2= Casting.new(casting2)

binding.pry()

让我们假设我开始查看对象

casting_object1

和

casting_object2

，以确定它们的方法是否已正确编写，并且我无意中键入了一些小错误，例如调用不存在的对象/函数。我得到这种输出：

[1] pry(main)> casting_object1
[2] pry(main)> casting_object5

Traceback (most recent call last):
        27: from console.rb:64:in `<main>'
        26: from /Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/context.rb:98:in `at_line'
        25: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:65:in `at_line'
        24: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:113:in `resume_pry'
        23: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in `run'
        22: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in `catch'
        21: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `block in run'
        20: from /Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/helpers/eval.rb:94:in `allowing_other_threads'
        19: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `block (2 levels) in run'
        18: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:117:in `block in resume_pry'
        17: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_class.rb:200:in `start'
        16: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:13:in `start'
        15: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in `start'
        14: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input_lock.rb:77:in `with_ownership'
        13: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input_lock.rb:59:in `__with_ownership'
        12: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in `block in start'
        11: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:67:in `repl'
        10: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:67:in `loop'
         9: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:77:in `block in repl'
         8: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:272:in `eval'
         7: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:272:in `catch'
         6: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:273:in `block in eval'
         5: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:273:in `catch'
         4: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:274:in `block (2 levels) in eval'
         3: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:355:in `handle_line'
         2: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:387:in `evaluate_ruby'
         1: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:387:in `eval'
(pry):3:in `<main>': undefined local variable or method `casting' for main:Object (NameError)
Did you mean?  casting_object2
               casting_object1
        27: from console.rb:64:in `<main>'
        26: from /Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/context.rb:98:in `at_line'
        25: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:65:in `at_line'
        24: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:113:in `resume_pry'
        23: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in `run'
        22: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in `catch'
        21: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `block in run'
        20: from /Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/helpers/eval.rb:94:in `allowing_other_threads'
        19: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `block (2 levels) in run'
        18: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:117:in `block in resume_pry'
        17: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_class.rb:200:in `start'
        16: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:13:in `start'
        15: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in `start'
        14: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input_lock.rb:77:in `with_ownership'
        13: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input_lock.rb:59:in `__with_ownership'
        12: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in `block in start'
        11: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:67:in `repl'
        10: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:67:in `loop'
         9: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:77:in `block in repl'
         8: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:272:in `eval'
         7: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:272:in `catch'
         6: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:273:in `block in eval'
         5: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:273:in `catch'
         4: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:274:in `block (2 levels) in eval'
         3: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:349:in `handle_line'
         2: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:356:in `rescue in handle_line'
         1: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/exceptions.rb:16:in `==='
/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/exceptions.rb:28:in `===': undefined method `>' for nil:NilClass (NoMethodError)
        12: from console.rb:64:in `<main>'
        11: from /Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/context.rb:98:in `at_line'
        10: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:65:in `at_line'
         9: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:113:in `resume_pry'
         8: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in `run'
         7: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in `catch'
         6: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `block in run'
         5: from /Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/helpers/eval.rb:94:in `allowing_other_threads'
         4: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `block (2 levels) in run'
         3: from /Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:117:in `block in resume_pry'
         2: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_class.rb:169:in `start'
         1: from /Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_class.rb:201:in `rescue in start'
/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/exceptions.rb:28:in `===': undefined method `>' for nil:NilClass (NoMethodError)

[1]撬（主）>铸造对象1
[2] 撬杆（主）>铸件5
回溯（最近一次呼叫最后一次）：
27:from console.rb:64:in`'
26:from/Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/context.rb:98:in'at_-line'
25:from/Users/bob/.rvm/gems/ruby head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:65:in'at_line'
24:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry\u processor.rb:113:in'resume\u-pry'
23:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in'run'
22:from/Users/bob/.rvm/gems/ruby head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in'catch'
21:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in'block in run'
20:from/Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/helpers/eval.rb:94:in“允许其他线程”
19:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `运行中的块（2级）'
18:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry\u processor.rb:117:in“block in resume\u pry”
17:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_class.rb:200:in'start'
16:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:13:in'start'
15:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in'start'
14:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input_-lock.rb:77:in“拥有所有权”
13:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input\u-lock.rb:59:in `\u拥有所有权'
12:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in'block in start'
11:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:67:in'repl'
10:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:67:in'loop'
9:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:77:in'block in repl'
8:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:272:in'eval'
7:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:272:in'catch'
6:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:273:in`block in eval'
5:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:273:in'catch'
4:from/Users/bob/.rvm/gems/ruby head/gems/pry-0.12.2/lib/pry/pry_instance.rb:274:in`block（2层）in eval'
3:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_实例。rb:355:in'handle_line'
2:from/Users/bob/.rvm/gems/ruby head/gems/pry-0.12.2/lib/pry/pry_instance.rb:387:in“evaluate_ruby”
1:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_instance.rb:387:in'eval'
（pry）：3:in`'：未定义的局部变量或main:Object的方法“casting”（NameError）
你是说？铸造2
铸造材料1
27:from console.rb:64:in`'
26:from/Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/context.rb:98:in'at_-line'
25:from/Users/bob/.rvm/gems/ruby head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:65:in'at_line'
24:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry\u processor.rb:113:in'resume\u-pry'
23:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in'run'
22:from/Users/bob/.rvm/gems/ruby head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:29:in'catch'
21:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in'block in run'
20:from/Users/bob/.rvm/gems/ruby-head/gems/byebug-11.1.1/lib/byebug/helpers/eval.rb:94:in“允许其他线程”
19:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry_processor.rb:30:in `运行中的块（2级）'
18:from/Users/bob/.rvm/gems/ruby-head/gems/pry-byebug-3.8.0/lib/byebug/processors/pry\u processor.rb:117:in“block in resume\u pry”
17:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/pry_class.rb:200:in'start'
16:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:13:in'start'
15:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/repl.rb:38:in'start'
14:from/Users/bob/.rvm/gems/ruby-head/gems/pry-0.12.2/lib/pry/input_-lock.rb:77:in“拥有所有权”
1.