Issue #19238 has been updated by jeremyevans0 (Jeremy Evans). This is a bug in `URI.open`. It can be fixed by using `ruby2_keywords`. I submitted a pull request to fix it: https://github.com/ruby/open-uri/pull/24 ---------------------------------------- Bug #19238: URI.open fails for file path when second argument is a hash https://bugs.ruby-lang.org/issues/19238#change-103028 * Author: dkinzer (David Kinzer) * Status: Open * Priority: Normal * ruby -v: 3.0, 3.1 * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN ---------------------------------------- I upgraded one of my projects to ruby 3.1.3 and I found that `URI.open` now throws an error when passed a second argument when the first argument is a file path. When the first argument is a URL, then URI.open will work as expected. I was able to replicate this issue in all 3.x versions including the latest so it's an issue that was introduce with the release of 3.0 I found it convenient that `URI.open(uri, {})`, worked regardless of wether uri was a file path or a URL because it meant I did not have to add logic for varying cases. When the uri argument was a file path URI.open would simply open up the file and disregard the hash options params. But now I have to add that logic myself which is not as clean looking. Below is an example of the error. It's quite easy to reproduce on any version of ruby 3.x ``` URI.open("spec/fixtures/blogs.json", {}) /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/open-uri.rb:31:in `initialize': no implicit conversion of Hash into String (TypeError) from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/open-uri.rb:31:in `open' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/open-uri.rb:31:in `open' from (irb):9:in `<main>' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/gems/3.1.0/gems/irb-1.4.1/exe/irb:11:in `<top (required)>' from /Users/dkinzer/.rbenv/versions/3.1.3/bin/irb:25:in `load' from /Users/dkinzer/.rbenv/versions/3.1.3/bin/irb:25:in `<top (required)>' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/cli/exec.rb:58:in `load' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/cli/exec.rb:58:in `kernel_load' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/cli/exec.rb:23:in `run' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/cli.rb:486:in `exec' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/vendor/thor/lib/thor/command.rb:27:in `run' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/vendor/thor/lib/thor.rb:392:in `dispatch' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/cli.rb:31:in `dispatch' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/vendor/thor/lib/thor/base.rb:485:in `start' from /Users/dkinzer/.rbenv/versions/3.1.3/lib/ruby/3.1.0/bundler/cli.rb:25:in `start' ... 5 levels... ``` -- https://bugs.ruby-lang.org/