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Why do I get TypeError: can't multiply sequence by non-int of type 'float'?

... raw_input returns a string (a sequence of characters). In Python, multiplying a string and a float makes no defined meaning (while multiplying a string and an integer has a meaning: "AB" * 3 is "ABABAB"; how much is "L" * 3.14 ? Please do not re...
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Reading large text files with streams in C#

...w BufferedStream(fs)) using (StreamReader sr = new StreamReader(bs)) { string line; while ((line = sr.ReadLine()) != null) { } } March 2013 UPDATE I recently wrote code for reading and processing (searching for text in) 1 GB-ish text files (much larger than the files involved he...
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What's the simplest way to test whether a number is a power of 2 in C++?

... so basically (n>0 && ((n & (n-1)) == 0)) – Saurabh Goyal Jul 10 '16 at 8:06 1 ...
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Git Bash doesn't see my PATH

...ecutable names without extensions. In my case, I wanted to execute a file called cup.bat. In a Windows shell, typing cup would be enough. Bash doesn't work this way, it wants the full name. Typing cup.bat solved the problem. (I wasn't able to run the file though, since apparently bash couldn't under...
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Select random row from a sqlite table

... the day seeded with unix epoc for today at noon so it shows the same book all day even if the query is run multiple times. Yes I know caching is more efficient for this use case just an example. – danielson317 Apr 22 at 17:18 ...
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How to compare strings in Bash

How do I compare a variable to a string (and do something if they match)? 10 Answers 1...
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Is there an MD5 Fixed Point where md5(x) == x?

...cessarily also have to be 128 bits long. Assuming that the MD5 sum of any string is uniformly distributed over all possible sums, then the probability that any given 128-bit string is a fixed point is 1/2128. Thus, the probability that no 128-bit string is a fixed point is (1 − 1/2128)2128, so t...
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How to switch to the new browser window, which opens after click on the button?

...u can switch between windows as below: // Store the current window handle String winHandleBefore = driver.getWindowHandle(); // Perform the click operation that opens new window // Switch to new window opened for(String winHandle : driver.getWindowHandles()){ driver.switchTo().window(winHandl...
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How do I parse a string with a decimal point to a double?

I want to parse a string like "3.5" to a double. However, 18 Answers 18 ...
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Extract file basename without path and extension in bash [duplicate]

...). Source: Shell Command Language 2.6.2 Parameter Expansion More on bash String Manipulations: http://tldp.org/LDP/LG/issue18/bash.html share | improve this answer | follo...