The 's' replaces just one House match at any given time though the 's+' replaces The complete House sequence without delay with the 2nd parameter.
In such a case, it helps make no difference, since you are replacing all the things with the empty string (Whilst it would be greater to employ s+ from an effectiveness standpoint). In the event you have been replacing that has a non-vacant string, The 2 would behave in another way. Share Enhance this response Observe
so "indent" specifies how much House to allocate for that string that follows it while in the parameter listing.
This is especially crucial for associates of our community who will be beginners, instead of familiar with the syntax. On condition that, could you edit your remedy to include an explanation of Anything you're accomplishing and why you think it is the best solution?
This is often relatively conventional error-checking code for your Python script that accepts command-line arguments.
The main difference lies in the way in which it get's handled. In the event you would have a gaggle of (one example is) three spaces directly next one another s+ will take that group and turns The full it into a "", while s would proces every Place on its own.
The %s token will allow me to insert (and possibly format) a string. Discover that the %s token is changed by what ever I pass towards the string after the % image.
Andrew HareAndrew Hare 351k7575 gold badges645645 silver badges641641 bronze badges 3 fifteen Notice that this kind of string interpolation is deprecated in favor of the greater strong str.format technique.
Recognize also that i'm employing a tuple right here in addition (once you have only one string using a tuple is optional) For example that several strings can be inserted and formatted in one statement.
The width is just not specified in the structure string, but as yet another integer price argument preceding the argument that has to be formatted.
If the worth being output is below 4 read more character positions huge, the value is true justified in the field by default.
If the worth is greater than four character positions wide, the sector width expands to support the appropriate amount of characters.
So the initial if statement translates to: should you haven't passed me an argument, I'll show you how you should go me an argument Down the road, e.g. you will see this on-display screen: