python-idle

Linux kernel idle loop

生来就可爱ヽ(ⅴ<●) 提交于 2019-12-24 02:53:10
问题 Inside the linux kernel idle loop, for quite a few architectures (SH, ARM, X86 etc.. afaik) are the following lines: if(cpuidle_idle_call()) pm_idle(); My doubt: At-least for ARM, The default pm_idle function consists of WFI (Wait for interrupt) instruction but the confusing part is, interrupts are disabled then and are enabled after the WFI instruction executes, How does a CPU get back online from WFI when interrupts were disabled ? I tried searching for my answers in various versions of

Linux kernel idle loop

夙愿已清 提交于 2019-12-24 02:53:04
问题 Inside the linux kernel idle loop, for quite a few architectures (SH, ARM, X86 etc.. afaik) are the following lines: if(cpuidle_idle_call()) pm_idle(); My doubt: At-least for ARM, The default pm_idle function consists of WFI (Wait for interrupt) instruction but the confusing part is, interrupts are disabled then and are enabled after the WFI instruction executes, How does a CPU get back online from WFI when interrupts were disabled ? I tried searching for my answers in various versions of

IDLE crash when using multiprocessing on Mac OSX

℡╲_俬逩灬. 提交于 2019-12-23 05:46:14
问题 If I run this simple code in IDLE in Python 2.7.8, it will pop a window saying "The program is still running! Do you want to kill it?". from multiprocessing import Pool def foo(x): return x**2 if __name__ == '__main__': pool = Pool(2) pows = pool.map(foo, range(10)) print pows Even if I do kill or not (it will ask twice) nothing will happen. I used to use Windows and I've just recently started using Mac OSX (10.9.4), and I don't know if I'm missing something here. If I run the same code

How to use idlelib.PyShell to embed an interpreter in a tkinter program?

為{幸葍}努か 提交于 2019-12-21 21:36:45
问题 I need to embed an interative python interpreter into my tkinter program. Could anyone help me out as to how to integrate it? I have already looked at the main() function, but it's way to complex for my needs, but I can't seem to reduce it without breaking it. 回答1: Some details of what you must do may depend on what you want to do with IDLE's Shell once you have it running. I would like to know more about that. But let us start simple and make the minimum changes to pyshell.main needed to

How to run two modules at the same time in IDLE

十年热恋 提交于 2019-12-21 12:08:56
问题 I am working on a super simple socket program and I have code for the client and code for the server. How do I run both these .py files at the same time to see if they work ? 回答1: You can run multiple instances of IDLE/Python shell at the same time. So open IDLE and run the server code and then open up IDLE again, which will start a separate instance and then run your client code. 来源: https://stackoverflow.com/questions/15329649/how-to-run-two-modules-at-the-same-time-in-idle

How to import/open numpy module to IDLE

半城伤御伤魂 提交于 2019-12-20 10:13:31
问题 I want to use numpy for a program I have to run and I want to do it in the IDLE IDE. I have installed the numpy binary from online, but when I try running "import numpy" and then some numpy commands in my script, but the python shell returns an error saying Traceback (most recent call last): File "/Users/Admin/Desktop/NumpyTest.py", line 1, in <module> import numpy as np ImportError: No module named numpy I have tried using pip to install numpy, but when I run pip install numpy in the bash

How do I access the command history from IDLE?

纵然是瞬间 提交于 2019-12-20 08:14:11
问题 On bash or Window's Command Prompt, we can press the up arrow on keyboard to get the last command, and edit it, and press ENTER again to see the result. But in Python's IDLE 2.6.5 or 3.1.2, it seems if our statement prints out 25 lines, we need to press the up arrow 25 times to that last command, and press ENTER for it to be copied? Or use the mouse to pinpoint that line and click there, and press ENTER to copy? Is there a faster way? 回答1: I think you are looking for the history-previous

How do I access the command history from IDLE?

柔情痞子 提交于 2019-12-20 08:13:10
问题 On bash or Window's Command Prompt, we can press the up arrow on keyboard to get the last command, and edit it, and press ENTER again to see the result. But in Python's IDLE 2.6.5 or 3.1.2, it seems if our statement prints out 25 lines, we need to press the up arrow 25 times to that last command, and press ENTER for it to be copied? Or use the mouse to pinpoint that line and click there, and press ENTER to copy? Is there a faster way? 回答1: I think you are looking for the history-previous

How do I access the command history from IDLE?

时光毁灭记忆、已成空白 提交于 2019-12-20 08:13:02
问题 On bash or Window's Command Prompt, we can press the up arrow on keyboard to get the last command, and edit it, and press ENTER again to see the result. But in Python's IDLE 2.6.5 or 3.1.2, it seems if our statement prints out 25 lines, we need to press the up arrow 25 times to that last command, and press ENTER for it to be copied? Or use the mouse to pinpoint that line and click there, and press ENTER to copy? Is there a faster way? 回答1: I think you are looking for the history-previous

IDLE 2.7.11/12 “NameError: global name 'Toplevel' is not defined”

不想你离开。 提交于 2019-12-20 06:37:33
问题 I ran APT-GET update on a Debian based OS on Oracle VB. While it was running I messed around with some python code in IDLE 2.7.12 (I opened it with a terminal). After it finished updating, I tried saving my code. In the terminal that I opened IDLE with I got an error. It says this: root@kali:~# idle Idle opens, I load my code, I edit my code, then I click [FILE] [SAVE] This happens Exception in Tkinter callback Traceback (most recent call last): File "/usr/lib/python2.7/lib-tk/Tkinter.py",