小编kha*_*idh的帖子

我现在正在开发一个 Rails 应用程序，只要在我们的应用程序主页上单击一个按钮，它就需要运行一个 python 脚本。我试图找出一种让 rails 运行这个脚本的方法，到目前为止我的两次尝试都失败了。

我的第一次尝试是使用 exec(..) 命令来运行“python script.py”，但是当我这样做时，它似乎运行了文件但终止了 rails 服务器，所以我每次都需要手动重新启动它.

我的第二次尝试是安装 gem“RubyPython”并从那里尝试，但是一旦我运行它，我就不知所措..我找不到任何使用它来运行或加载 python 脚本的人的例子.

对此的任何帮助将不胜感激。

它显示了错误的参数数量,但我传递了3个参数

ScannerWorker.perform_async('bob1','bob2',5)

这里是sidekiq工人代码

  class ScannerWorker
    include Sidekiq::Worker

  def perform(bob1, bob2, bob3)
    puts bob1
  end
end

sidekiq版本: - 4.2.7
rails 4.2.6
Redis服务器v = 3.0.7

Sidekiq错误: -

2017-01-03T06:29:43.007Z 9547 TID-itjjk WARN: ArgumentError: wrong number of arguments (given 0, expected 2..3)
2017-01-03T06:29:43.007Z 9547 TID-itjjk WARN: /home/smk/14.04/rails/projects/myappname/app/workers/scanner_worker.rb:5:in `test'
/home/smk/14.04/rails/projects/myappname/app/workers/scanner_worker.rb:5:in `perform'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/processor.rb:158:in `execute_job'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/processor.rb:138:in `block (4 levels) in process'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq.rb:36:in `block in <module:Sidekiq>'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/processor.rb:133:in `block (3 levels) in process'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/middleware/chain.rb:128:in `block in invoke'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/middleware/server/active_record.rb:6:in `call'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/middleware/server/retry_jobs.rb:74:in `call'
/home/smk/14.04/rails/projects/myappname/vendor/bundle/gems/sidekiq-4.2.7/lib/sidekiq/middleware/chain.rb:130:in `block in invoke' …

我正在尝试捆绑安装,rake db:migrate

bundle install

/home/name/.rvm/gems/ruby-2.3.0/bin/rake:22:in `<main>': undefined method `activate_bin_path' for Gem:Module (NoMethodError)
    from /home/name/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in `eval'
    from /home/name/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in `<main>'

我试过gem install bundler 它会给出错误

ERROR:  While executing gem ... (TypeError)
    no implicit conversion of nil into String 

哪个红宝石

/home/smk/.rvm/rubies/ruby-2.3.0/bin/ruby 

rvm列表

ruby-2.0.0-p648 [ x86_64 ]
   ruby-2.1.5 [ x86_64 ]
   ruby-2.2.5 [ x86_64 ]
=* ruby-2.3.0 [ x86_64 ] 

我试过很多解决方案,但没有用,
请任何人帮助我.

我试图删除给定链接后的交换文件:https://www.digitalocean.com/community/questions/delete-swap-file

但是,当我键入:

sudo rm /swapfile 

我收到以下错误:

rm: cannot remove `swapfile': Operation not permitted

我已将交换文件的权限更改为777,我相信我拥有root权限.仍然无法删除它.

我正在使用selectpicker，下拉菜单显示两次，如图所示

当我删除selectpicker类时，它显示正常的下拉列表

<div class="row">
    <div class="col-sm-12">
        <div class="card-box">
            <h4 class="m-t-0 header-title"><b>Select app</b></h4>
            <div class="row">
                <div class="col-md-4">
                    <div class="p-20">
                        <select class="selectpicker" data-style="btn-white">
                            <option>abc</option>
                            <option>xyz</option>
                            <option>123</option>
                        </select> 
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

$('.selectpicker').selectpicker();
    $(":file").filestyle({input: false});
});