Undo a commit & redo This command is responsible for the undo. It will undo your last commit while leaving your working tree (the state of your files on disk) untouched. You’ll need to add them again before you can commit them again). Make corrections to working tree files. git add anything that you want … Read more
Authentication is the process of ascertaining that somebody really is who they claim to be. Authorization refers to rules that determine who is allowed to do what. E.g. Adam may be authorized to create and delete databases, while Usama is only authorised to read. The two concepts are completely orthogonal and independent, but both are central to security design, … Read more
If you have a list with 53 items, the last one is thelist[52] because indexing starts at 0. IndexError Attribution to Real Python: Understanding the Python Traceback – IndexError The IndexError is raised when attempting to retrieve an index from a sequence (e.g. list, tuple), and the index isn’t found in the sequence. The Python … Read more
Destination Host Unreachable This message indicates one of two problems: either the local system has no route to the desired destination, or a remote router reports that it has no route to the destination. If the message is simply “Destination Host Unreachable,” then there is no route from the local system, and the packets to … Read more
Python doesn’t support ++, but you can do:
Why are they using <i> tag to display icons ? Because it is: Short i stands for icon (although not in HTML) Is it not a bad practice ? Awful practice. It is a triumph of performance over semantics.
pip is just a PyPI package like any other; you could use it to upgrade itself the same way you would upgrade any package: On Windows the recommended command is:
gcc and g++ are compiler-drivers of the GNU Compiler Collection (which was once upon a time just the GNU C Compiler). Even though they automatically determine which backends (cc1 cc1plus …) to call depending on the file-type, unless overridden with -x language, they have some differences. The probably most important difference in their defaults is … Read more
CPython is the original Python implementation. It is the implementation you download from Python.org. People call it CPython to distinguish it from other, later, Python implementations, and to distinguish the implementation of the language engine from the Python programming language itself. The latter part is where your confusion comes from; you need to keep Python-the-language separate from whatever runs the Python … Read more
Update for 2020: Sticking to the original question of 16×16 versus 32×32 icons: the current recommendation should be to provide a 32×32 icon, skipping 16×16 entirely. All current browsers and devices support 32×32 icons. The icon will routinely be upscaled to as much as 192×192 depending on the environment (assuming there are no larger sizes … Read more