Arguments are passed by assignment. The rationale behind this is twofold: the parameter passed in is actually a reference to an object (but the reference is passed by value) some data types are mutable, but others aren’t So: If you pass a mutable object into a method, the method gets a reference to that same object and you can mutate … Read more
As others have pointed out, due to not using understandable variable names, it is almost impossible to debug your code. Following the wiki article about Dijkstra’s algorithm, one can implement it along these lines (and in a million other manners): This code is more verbous than necessary and I hope comparing your code with mine … Read more
Reference: Data Structures > More on Lists Caveats follow Note that while this is perhaps the cleanest way to answer the question as asked, index is a rather weak component of the list API, and I can’t remember the last time I used it in anger. It’s been pointed out to me in the comments that because this answer is heavily … Read more
Wikipedia has the answer, along with a number of other sources. A segfault basically means you did something bad with pointers. This is probably a segfault: Or this: Or maybe this: Same basic principle in each case – you’re doing something with memory that isn’t yours.
Somewhere else in your code you have something that looks like this: Then when you write that is interpreted as meaning a function call on the object bound to round, which is an int. And that fails. The problem is whatever code binds an int to the name round. Find that and remove it.
If you’re using Windows Server 2008 R2 then there is an x64 and x86 version of PowerShell both of which have to have their execution policies set. Did you set the execution policy on both hosts? As an Administrator, you can set the execution policy by typing this into your PowerShell window: For more information, see Using the Set-ExecutionPolicy Cmdlet. When you are … Read more
had the same problem. My solution: For Python 3 For Python 2
There are working combinations of OS, JDK and Eclipse bitness. In my case, I was using a 64-bit JDK with a 32-bit Eclipse on a 64-bit OS. After downgrading the JDK to 32-bit, Eclipse started working. Use one of the following combinations. 32-bit OS, 32-bit JDK, 32-bit Eclipse (32-bit only) 64-bit OS, 32-bit JDK, 32-bit … Read more
The -f is actually required because of the rebase. Whenever you do a rebase you would need to do a force push because the remote branch cannot be fast-forwarded to your commit. You’d always want to make sure that you do a pull before pushing, but if you don’t like to force push to master or dev for that matter, … Read more
This is the problem: You are redefining what str() means. str is the built-in Python name of the string type, and you don’t want to change it. Use a different name for the local variable, and remove the global statement.