It’s the null coalescing operator, and quite like the ternary (immediate-if) operator. See also ?? Operator – MSDN. expands to: which further expands to: In English, it means “If whatever is to the left is not null, use that, otherwise use what’s to the right.” Note that you can use any number of these in sequence. … Read more
When you try to merge one commit with a commit that can be reached by following the first commit’s history, Git simplifies things by moving the pointer forward because there is no divergent work to merge together – this is called a “fast-forward.” For more : http://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging In another way, If Master has not diverged, instead … Read more
shuffle(names) is an in-place operation. Drop the assignment. This function returns None and that’s why you have the error:
What you have should work. If, however, the spaces provided are defaulting to… something else? You can use the whitespace regex: This will cause any number of consecutive spaces to split your string into tokens.
Let’s say that I need to format the output of an array to display a fixed number of elements per line. How do I go about doing that using modulus operation? Using C++, the code below works for displaying 6 elements per line but I have no idea how and why it works? What if … Read more
Use an invisible <iframe>: To force the browser to download a file it would otherwise be capable of rendering (such as HTML or text files), you need the server to set the file’s MIME Type to a nonsensical value, such as application/x-please-download-me or alternatively application/octet-stream, which is used for arbitrary binary data. If you only want to open it in a … Read more
The first parameter represents the regular expression to search for, while the second one represents the directory that should be searched. In this case, . means the current directory. Note: This works for GNU grep, and on some platforms like Solaris you must specifically use GNU grep as opposed to legacy implementation. For Solaris this is the ggrep command.
The PDB file is a Visual Studio specific file that has the debugging symbols for your project. You can ignore those messages, unless you’re hoping to step into the code for those dlls with the debugger (which is doubtful, as those are system dlls). In other words, you can and should ignore them, as you … Read more
Specify the separating character But, extract looks cleaner for this since you can remove the “()” at the same time
Auto PY to EXE – A .py to .exe converter using a simple graphical interface built using Eel and PyInstaller in Python. py2exe is probably what you want, but it only works on Windows.PyInstaller works on Windows and Linux.Py2app works on the Mac.