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What is the difference between '/' and '//' when used for division?
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edited: You can "fix" division since Python 2.2! (Just read the linked PEP)
– u0b34a0f6ae
Nov 9 '09 at 23:51
2
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Remove last character of a StringBuilder?
...mption is incorrect, then check the StringBuilder's length first; e.g.
// Readable version
if (sb.length() > 0) {
sb.setLength(sb.length() - 1);
}
or
// Concise but harder-to-read version of the above.
sb.setLength(Math.max(sb.length() - 1, 0));
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Understanding dict.copy() - shallow or deep?
While reading up the documentation for dict.copy() , it says that it makes a shallow copy of the dictionary. Same goes for the book I am following (Beazley's Python Reference), which says:
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Running Selenium WebDriver python bindings in chrome
...ire things up.
Edit:
Right, seems to be a bug in the Python bindings wrt reading the chromedriver binary from the path or the environment variable. Seems if chromedriver is not in your path you have to pass it in as an argument to the constructor.
import os
from selenium import webdriver
chromed...
Basic http file downloading and saving to disk in python?
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Ok, now I've read the links you've provided for requests usage. I'm confused about how to declare the file path, for saving the download. How do I use os and shutil for this?
– arvindch
Oct 26 '13 at...
How to run mvim (MacVim) from Terminal?
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Anyone reading this today using homebrew you'll have to run brew linkapps after installing macvim.
– Aaron Lake
Sep 29 '11 at 18:20
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Inserting string at position x of another string
... I was curious about this and ran a jsperf. This is a note to anyone who reads this in the future. jsperf.com/javascript-string-splice. Tested in latest FF/Chrome/IE10/IE9. I would use lean nickf's approach over this one for both clarity and performance.
– junkyspace
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micro:bit 实验06 - 拧旋钮控制屏幕，读模拟量 · App Inventor 2 中文网
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实验05：引脚读按钮
改编自 MIT 官方教程 read knob status with Micro:bit I/O pins，扩展改用本站本地文件。
一、器材清单
器材
数量
说明
BBC micro:bit
1
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Stopping an Android app from console
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Maybe you have to remount the partition read-write and run adb as root: adb remount; adb root # that's just a stupid guess thought
– Rorist
Jun 25 '10 at 12:25
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How do I make a UITableViewCell appear disabled?
...ake a UITableViewCell appear disabled:
// Mac's native DigitalColor Meter reads exactly {R:143, G:143, B:143}.
cell.textLabel.alpha = 0.439216f; // (1 - alpha) * 255 = 143
aSwitch.enabled = NO; // or [(UISwitch *)cell.accessoryView setEnabled:NO];
And then, to actually disable the cell:
cell.use...