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how do I make a single legend for many subplots with matplotlib?

... multiple subplots with matplotlib. That is, I have 9 plots on a 3x3 grid, all with the same for lines (of course, different values per line). ...
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Run a callback only if an attribute has changed in Rails

... Rails 5.1+ class Page < ActiveRecord::Base before_save :do_something, if: :will_save_change_to_status_id? private def do_something # ... end end The commit that changed ActiveRecord::Dirty is here: https://github.com/rails/rails/commit/16ae3db5a5c6a08383b974ae...
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti

This is not a duplicate of "How to safely call an async method in C# without await" . 8 Answers ...
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No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

... On your Eclipse IDE, go into Window > Preferences > Java > Installed JREs > and check your installed JREs. You should have an entry with a JDK there. Select the Execution Env as show below. Click OK Then Right-Click on your Project -> Maven -> Update Project Additionally, yo...
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How can I extract the folder path from file path in Python?

....path.split(os.path.abspath(existGDBPath)) ('T:\\Data\\DBDesign', 'DBDesign_93_v141b.mdb') share | improve this answer | follow | ...
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Submit a form using jQuery [closed]

... It depends on whether you are submitting the form normally or via an AJAX call. You can find lots of information at jquery.com, including documentation with examples. For submitting a form normally, check out the submit() method to at that site. For AJAX, there are many differen...
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python list in sql query as parameter

... performed the same query. Doing this I got the erroy i.e. Type Error: not all arguments converted during string formatting. How am I supposed to solbe it – TechJhola Jan 9 '15 at 19:55 ...
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ASP.NET MVC: What is the purpose of @section? [closed]

... @section is for defining a content are override from a shared view. Basically, it is a way for you to adjust your shared view (similar to a Master Page in Web Forms). You might find Scott Gu's write up on this very interesting. Edit: Based on additional question clarification The @RenderSection...
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Regex Email validation

...ccurate as mine, I thought I would post it here. @"^[\w!#$%&'*+\-/=?\^_`{|}~]+(\.[\w!#$%&'*+\-/=?\^_`{|}~]+)*" + "@" + @"((([\-\w]+\.)+[a-zA-Z]{2,4})|(([0-9]{1,3}\.){3}[0-9]{1,3}))$"; For more info go read about it here: C# – Email Regular Expression Also, this checks for RFC validity ...
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/bin/sh: pushd: not found

...d by child processes. (A hypothetical pushd command might do the chdir(2) call and then start a new shell, but ... it wouldn't be very usable.) pushd is a shell builtin, just like cd. So, either change your script to start with #!/bin/bash or store the current working directory in a variable, do yo...