How to remove all white space in Python

If you want to remove leading and ending spaces, use str.strip():

sentence = ' newbie  dev'
sentence.strip()
>>> 'newbie  dev'

Remove ALL spaces in a string, even between words:

• Use str.replace():

  sentence = ' newbie  dev'
  sentence.replace(" ", "")
  >>> 'newbiedev'

• Use regex

  import re
  sentence = ' newbie  dev'
  sentence = re.sub(r"\s+", "", sentence, flags=re.UNICODE)

Remove ONLY DUPLICATE spaces:

• Use regex

  sentence = ' hello  apple'
  " ".join(sentence.split())
  >>> 'hello apple'

• Use str.split():

  import re
  sentence = ' newbie  dev'
  sentence = " ".join(re.split("\s+", sentence, flags=re.UNICODE))