The 's' replaces one particular Place match at any given time although the 's+' replaces the whole space sequence at once with the 2nd parameter.
In this case, it can make no distinction, since you are replacing all the things with the empty string (Whilst it would be greater to employ s+ from an efficiency point of view). In case you were being changing with a non-empty string, The 2 would behave in a different way. Share Improve this respond to Observe
How can or not it's resolved that a applicant has received a state While not all of the votes are actually documented?
Using %s in scanf devoid of an explcit field width opens the exact same buffer overflow exploit that receives did; namely, if you can find more characters while in the enter stream than the goal buffer is sized to hold, scanf will happily write All those excess people to memory outside the house the buffer, possibly clobbering anything significant. Regretably, in contrast to in printf, you can't supply the sphere with as a operate time argument:
This really is rather regular error-examining code for a Python script that accepts command-line arguments.
The difference lies in just how it get's taken care of. When you might have a group of (for example) three spaces straight following one another s+ will take that team and turns The full it into a "", though s would proces each individual House on its own.
The %s token permits me to insert (and perhaps format) a string. Observe which the %s token is replaced by whatsoever I move on the string following the % symbol.
Andrew HareAndrew Hare 351k7575 gold badges645645 silver badges641641 bronze badges 3 fifteen Take note that this sort of string interpolation is deprecated in favor of the greater highly effective str.format method.
Notice also that I am utilizing a tuple in this article too (any time you have only just one string using a tuple is optional) As an example that various strings might be inserted and formatted in a single assertion.
How do I prevent Doing the job additional time due to teenagers's lack of preparing with out website harming them as well poorly?
Within an eclipsing binary orbited by an Earth like Earth, would the drops in brightness be noticeable?
That way it could stand on its own. Offering an illustration that was akin to the instance from the dilemma would even be a moreover.
The next if assertion checks to view In case the 'database-identify' you passed to the script basically exists to the filesystem. If not, you will get a message similar to this: