It claims zero or maybe more occurrence of whitespace characters, accompanied by a comma and afterwards accompanied by zero or even more event of whitespace figures.
In this case, it can make no distinction, since you are replacing all the things using an vacant string (Whilst It could be better to work with s+ from an performance standpoint). In the event you have been replacing by using a non-vacant string, The 2 would behave in another way. Share Enhance this reply Comply with
so "indent" specifies the amount of Place to allocate for that string that follows it from the parameter checklist.
Using %s in scanf with no 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 publish All those extra characters to memory outside the buffer, probably clobbering anything significant. Unfortunately, in contrast to in printf, you can't supply the sphere with to be a operate time argument:
This is certainly pretty typical mistake-examining code for any 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've a bunch of (by way of example) 3 Areas specifically adhering to each other s+ takes that team and turns the whole it right into a "", although s would proces each and every space By itself.
The %s token enables me to insert (and possibly format) a string. See which the %s token is changed by whichever I go to your string once the % symbol.
The PEP isn't going to say "supplanted" and in no Component of the PEP will it say the % operator is deprecated (nevertheless it does say other issues are deprecated down The underside). You may want str.format and that's high-quality, but until eventually there is a PEP stating it is deprecated there isn't any perception in proclaiming it is actually when it's not.
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If the value to generally be output is a lot less than 4 character positions large, the value is true justified in the sector by default.
For starters you have to know that last output of equally the statements will be exact i.e. to get rid of many of the spaces from specified string.
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