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I have this string:
mystring = 'Here is some text I wrote ' How can I substitute the double, triple (...) whitespace chracters with a single space, so that I get:
mystring = 'Here is some text I wrote' 
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Use the re. sub() method to replace multiple spaces with a single space, e.g. result = re. sub(' +', ' ', my_str) .
The metacharacter “\s” matches spaces and + indicates the occurrence of the spaces one or more times, therefore, the regular expression \S+ matches all the space characters (single or multiple). Therefore, to replace multiple spaces with a single space.
Using regexes with "\s" and doing simple string. split()'s will also remove other whitespace - like newlines, carriage returns, tabs.
A simple possibility (if you'd rather avoid REs) is
' '.join(mystring.split()) The split and join perform the task you're explicitly asking about -- plus, they also do the extra one that you don't talk about but is seen in your example, removing trailing spaces;-).
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