... The lstrip() method will remove leading whitespaces, newline and tab characters on a string beginning: >>> ' hello world!'.lstrip() 'hello world!' Edit As balpha pointed out in the comments, in order to remove only spaces from the beginning of the string, lstrip(' ') s...

...n a stream: read one byte. Next time you read, you'll get the next byte, and so on. read several bytes from the stream into an array seek (move your current position in the stream, so that next time you read you get bytes from the new position) write one byte write several bytes from an array into...

...to the length property. The interpreter does an amazing job at that itself and it will not make any difference in The Real World whether you optimize it away or not. If your array becomes so huge that optimizing .length would actually help, most probably an array is not the right data structure anym...

...zed (C++11 §8.5/11). That includes objects of type std::array<T, N> and T[N]. Be aware that there are types for which default initialization has no effect and leaves the object's value indeterminate: any non-class, non-array type (§8.5/6). Consequently, a default-initialized array of object...

...a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite complicated (and probably not differentiable), the second possibility is to do a numerical minimization, which requires many evaluations of your function. Ergo, it is ver...

I've been wrestling with this for a while and can't quite figure out what's happening. I have a Card entity which contains Sides (usually 2) - and both Cards and Sides have a Stage. I'm using EF Codefirst migrations and the migrations are failing with this error: ...

I'm developing a MVC3 base website and I am looking for a solution for handling errors and Render custom Views for each kind of error. So imagine that I have a "Error" Controller where his main action is "Index" (generic error page) and this controller will have a couple more actions for the errors ...

... Negative margins are valid in css and understanding their (compliant) behaviour is mainly based on the box model and margin collapsing. While certain scenarios are more complex, a lot of common mistakes can be avoided after studying the spec. For instance, r...

...e the yeses would get gobbled by the pip freeze not the xargs argument/command, pip uninstall. – hobs May 25 '13 at 0:10 3 ...

... The current recommended way is with the flask command line utility. https://flask.palletsprojects.com/en/1.1.x/quickstart/#debug-mode Example: $ export FLASK_APP=main.py $ export FLASK_ENV=development $ flask run or in one command: $ FLASK_APP=main.py FLASK_ENV=develo...