How do IDEs like Spyder send commands to their interactive ipython shell (such as runfile() when you click the run button)? Is there a way to open an ipython console and send commands to the kernel from outside the console (e.g. from a cmd or python script)?
I've read in the ipython documentation about messaging and the execute_request message type, but it gives no indication as to how you would implement that. And I'm not sure it's even what Spyder uses - in Spyder, when you click run, the runfile() command is inserted into the ipython console input.