interactive

I need to determine whether the shell which invoked my Python script was in interactive mode or not. If it was in interactive mode, the program should pipe output to less(1) for easy reading. If not, it should simply print its output to stdout, to allow it to be piped away to a printer, file, or a different pager. In a shell script, I would have checked if the prompt variable $PS1 was defined, or looked for the -i option among the flags stored in the $- variable. What is the preferred method for testing interactivity from within Python? This is often works well enough import os, sys if os

Suppose I'm using R's interactive console, and I've just done something like this: long_running_command() That long-running command returns a value, and I've just realized that I wanted to assign that value to a variable instead of discard it. So how can I get that value without running the command again? Is there a command like this? result = get_last_return_value() Marek .Last.value is an answer. It was answered once but you have better title. 来源： https://stackoverflow.com/questions/3689279/how-to-assign-the-result-of-the-previous-expression-to-a-variable

I'm trying to use git add --interactive to selectively add some changes to my index, but I continually receive the "Your edited hunk does not apply. Edit again..." message. I get this message even if I choose the e option, and immediately save/close my editor. In other words, without editing the hunk at all, the patch doesn't apply. Here's the exact example I'm using (I'm trying to put together a small demo): Original file: first change second change off branch third change off branch second change third change fourth change New file: Change supporting feature 1 first change second change off

I used matplotlib to create some plot, which depends on 8 variables. I would like to study how the plot changes when I change some of them. I created some script that calls the matplotlib one and generates different snapshots that later I convert into a movie, it is not bad, but a bit clumsy. I wonder if somehow I could interact with the plot regeneration using keyboard keys to increase / decrease values of some of the variables and see instantly how the plot changes. What is the best approach for this? Also if you can point me to interesting links or a link with a plot example with just two

Scenario: An interactive CLI Python program, that is in need for a password. That means also, there's no GUI solution possible. In bash I could get a password read in without re-prompting it on screen via read -s Is there something similar for Python? I.e., password = raw_input('Password: ', dont_print_statement_back_to_screen) Alternative: Replace the typed characters with '*' before sending them back to screen (aka browser' style). >>> import getpass >>> pw = getpass.getpass() Yes, getpass : "Prompt the user for a password without echoing." Edit: I had not played with this module myself yet,